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RFC 4560 - Definitions of Managed Objects for Remote Ping, Trace


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Network Working Group                                    J. Quittek, Ed.
Request for Comments: 4560                                           NEC
Obsoletes: 2925                                            K. White, Ed.
Category: Standards Track                                      IBM Corp.
                                                               June 2006

                    Definitions of Managed Objects
           for Remote Ping, Traceroute, and Lookup Operations

Status of This Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2006).

Abstract

   This memo defines Management Information Bases (MIBs) for performing
   ping, traceroute, and lookup operations at a host.  When managing a
   network, it is useful to be able to initiate and retrieve the results
   of ping or traceroute operations when they are performed at a remote
   host.  A lookup capability is defined in order to enable resolution
   of either an IP address to an DNS name or a DNS name to an IP address
   at a remote host.

   Currently, there are several enterprise-specific MIBs for performing
   remote ping or traceroute operations.  The purpose of this memo is to
   define a standards-based solution to enable interoperability.

Table of Contents

   1. Introduction ....................................................3
      1.1. Ping .......................................................3
      1.2. Traceroute .................................................4
      1.3. Lookup .....................................................5
      1.4. Remote Operations ..........................................5
   2. The Internet-Standard Management Framework ......................5
   3. Structure of the MIBs ...........................................6
      3.1. Ping MIB ...................................................6
           3.1.1. pingMaxConcurrentRequests ...........................7
           3.1.2. pingCtlTable ........................................7
           3.1.3. pingResultsTable ....................................7
           3.1.4. pingProbeHistoryTable ...............................8
      3.2. Traceroute MIB .............................................8
           3.2.1. traceRouteMaxConcurrentRequests .....................8
           3.2.2. traceRouteCtlTable ..................................8
           3.2.3. traceRouteResultsTable ..............................9
           3.2.4. traceRouteProbeHistoryTable ........................10
           3.2.5. traceRouteHopsTable ................................10
      3.3. Lookup MIB ................................................10
           3.3.1. lookupMaxConcurrentRequests and lookupPurgeTime ....11
           3.3.2. lookupCtlTable .....................................11
           3.3.3. lookupResultsTable .................................12
      3.4. Conformance ...............................................12
   4. Definitions ....................................................13
      4.1. DISMAN-PING-MIB ...........................................13
      4.2. DISMAN-TRACEROUTE-MIB .....................................46
      4.3. DISMAN-NSLOOKUP-MIB .......................................84
   5. Security Considerations ........................................95
   6. Acknowledgements ...............................................97
   7. References .....................................................97
      7.1. Normative References ......................................97
      7.2. Informative References ....................................98

1.  Introduction

   This document defines standards-based MIB modules for performing
   specific remote operations.  The remote operations defined by this
   document consist of the ping, traceroute, and lookup functions.

   Ping and traceroute are two very useful functions for managing
   networks.  Ping is typically used to determine whether a path exists
   between two hosts, whereas traceroute shows an actual path.

   Both ping and traceroute yield round-trip times measured in
   milliseconds.  These times can be used as a rough approximation for
   network transit time.

   The lookup functions considered in this document are the equivalents
   of name to address conversion functions such as
   gethostbyname()/gethostbyaddr() and getaddrinfo()/getnameinfo().

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

1.1.  Ping

   Ping is usually implemented using the Internet Control Message
   Protocol (ICMP) "ECHO" facility.  It is also possible to implement a
   ping capability using alternate methods, including the following:

      o   Using the UDP echo port (7), if supported.

          This is defined by RFC 862 [RFC862].

      o   Timing a Simple Network Management Protocol (SNMP) query.

      o   Timing a TCP connect attempt.

   In general, almost any request/response flow can be used to generate
   a round-trip time.  Often, many of the non-ICMP ECHO facility methods
   stand a better chance of yielding a good response (not timing out,
   for example) since some routers don't honor Echo Requests (timeout
   situation) or are handled at lower priority, thus possibly giving
   false indications of round trip times.

   Note that almost any of the various methods used for generating a
   round-trip time can be considered a form of system attack when used
   excessively.  Sending a system request too often can negatively
   effect its performance.  Attempting to connect to what is supposed to
   be an unused port can be very unpredictable.  There are tools that
   attempt to connect to a range of TCP ports to test that any receiving
   server can handle erroneous connection attempts.

   It is also important to a management application using a remote ping
   capability to know which method is being used.  Different methods
   will yield different response times, since the protocol and resulting
   processing will be different.  It is RECOMMENDED that the ping
   capability defined within this memo be implemented using the ICMP
   Echo Facility.

1.2.  Traceroute

   Traceroute is usually implemented by transmitting a series of probe
   packets with increasing time-to-live values.  A probe packet is a UDP
   datagram encapsulated into an IP packet.  Each hop in a path to the
   target (destination) host rejects the probe packet (probe's TTL too
   small) until its time-to-live value becomes large enough for the
   probe to be forwarded.  Each hop in a traceroute path returns an ICMP
   message that is used to discover the hop and to calculate a round
   trip time.  Some systems use ICMP probes (ICMP Echo request packets)
   instead of UDP ones to implement traceroute.  In both cases
   traceroute relies on the probes being rejected via an ICMP message to
   discover the hops taken along a path to the final destination.  Both
   probe types, UDP and ICMP, are encapsulated into an IP packet and
   thus have a TTL field that can be used to cause a path rejection.

   Implementations of the remote traceroute capability as defined within
   this memo SHOULD be done using UDP packets to a (hopefully) unused
   port.  ICMP probes (ICMP Echo Request packets) SHOULD NOT be used.
   Many PC implementations of traceroute use the ICMP probe method,
   which they should not, since this implementation method has been
   known to have a high probability of failure.  Intermediate hops
   become invisible when a router either refuses to send an ICMP TTL
   expired message in response to an incoming ICMP packet or simply
   tosses ICMP echo requests altogether.

   The behavior of some routers not to return a TTL expired message in
   response to an ICMP Echo request is due in part to the following text
   extracted from RFC 792 [RFC792]:

   "The ICMP messages typically report errors in the processing of
   datagrams.  To avoid the infinite regress of messages about messages
   etc., no ICMP messages are sent about ICMP messages."

1.3.  Lookup

   The Lookup operation enables remote lookup of addresses for a
   symbolic name as it is, for example, performed by functions
   getnameinfo() or gethostbyaddr() and lookup of symbolic names for an
   address as it is, for example, performed by functions getaddrinfo()
   or gethostbyname().  Note that whatever lookup function is chosen,
   results are not necessarily consistent with the results of a pure
   Domain Name Service (DNS) lookup, but may be influenced by local
   lookup tables or other sources of information.  The lookup capability
   can be used to determine the symbolic name of a hop in a traceroute
   path.  Also, the reverse lookup can be used, for example, for
   analyzing name lookup problems.

1.4.  Remote Operations

   The MIB modules defined in this document allow a management station
   to initiate ping, traceroute, and lookup operations remotely.  The
   basic scenario is illustrated by the following diagram.

         +-------+           +-------+           +-------+
         |       |---------->|       |           |       |
         |       | initiate  |       |---------->|       |
         | Mgmt. | operation |Managed|  perform  |Target |
         |Station| remotely  | Node  | operation | Host  |
         |       |           |       |           |       |
         |       |<----------|       |           |       |
         +-------+  receive  +-------+           +-------+
                   result of
                   operation

   A management station is the local host from which the remote ping,
   traceroute, or Lookup operation is initiated using an SNMP request.
   The managed node is a remote host where the MIBs defined by this memo
   are implemented.  It receives the remote operation via SNMP and
   performs the actual ping, traceroute, or lookup function.

2.  The Internet-Standard Management Framework

   For a detailed overview of the documents that describe the current
   Internet-Standard Management Framework, please refer to section 7 of
   RFC 3410 [RFC3410].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  MIB objects are generally
   accessed through the Simple Network Management Protocol (SNMP).
   Objects in the MIB are defined using the mechanisms defined in the
   Structure of Management Information (SMI).  This memo specifies a MIB
   module that is compliant to the SMIv2, which is described in STD 58,
   RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
   [RFC2580].

3.  Structure of the MIBs

   This document defines three MIB modules:

      o   DISMAN-PING-MIB

          Defines a ping MIB.

      o   DISMAN-TRACEROUTE-MIB

          Defines a traceroute MIB.

      o   DISMAN-NSLOOKUP-MIB

   Provides access to lookup functions for symbolic names and addresses
   at a remote host provided, for example, by functions
   getaddrinfo()/getnameinfo() and gethostbyname()/gethostbyaddr().

   The ping and traceroute MIBs are structured to allow creation of ping
   or traceroute tests that can be set up to issue a series of
   operations periodically and to generate NOTIFICATIONs to report on
   test results.  Many network administrators have in the past written
   UNIX shell scripts or command batch files to operate in a fashion
   similar to the functionality provided by the ping and traceroute MIBs
   defined within this memo.  The intent of this document is to
   acknowledge the importance of these functions and to provide a
   standards-based solution.

3.1.  Ping MIB

   The DISMAN-PING-MIB consists of the following components:

      o   pingMaxConcurrentRequests

      o   pingCtlTable

      o   pingResultsTable

      o   pingProbeHistoryTable

3.1.1.  pingMaxConcurrentRequests

   The object pingMaxConcurrentRequests enables control of the maximum
   number of concurrent active requests that an agent implementation
   supports.  It is permissible for an agent either to limit the maximum
   upper range allowed for this object or to implement this object as
   read-only with an implementation limit expressed as its value.

3.1.2.  pingCtlTable

   A remote ping test is started by setting pingCtlAdminStatus to
   enabled(1).  The corresponding pingCtlEntry MUST have been created,
   and its pingCtlRowStatus set to active(1), prior to starting the
   test.  A single SNMP PDU can be used to create and start a remote
   ping test.  Within the PDU, pingCtlTargetAddress should be set to the
   target host's address (pingCtlTargetAddressType will default to
   ipv4(1)), pingCtlAdminStatus to enabled(1), and pingCtlRowStatus to
   createAndGo(4).

   The first index element, pingCtlOwnerIndex, is of type
   SnmpAdminString, a textual convention that allows for use of the
   SNMPv3 View-Based Access Control Model (RFC 3415 [RFC3415], VACM) and
   that allows a management application to identify its entries.  The
   second index, pingCtlTestName (also an SnmpAdminString), enables the
   same management application to have multiple requests outstanding.

   Using the maximum value for the parameters defined within a pingEntry
   can result in a single remote ping test's taking at most 15 minutes
   (pingCtlTimeOut times pingCtlProbeCount), plus whatever time it takes
   to send the ping request and to receive its response over the network
   from the target host.  Use of the defaults for pingCtlTimeOut and
   pingCtlProbeCount yields a maximum of 3 seconds to perform a "normal"
   ping test.

   A management application can delete an active remote ping request by
   setting the corresponding pingCtlRowStatus object to destroy(6).

   The contents of the pingCtlTable are preserved across reIPLs (Initial
   Program Loads) of its agent according the values of each of the
   pingCtlStorageType objects.

3.1.3.  pingResultsTable

   An entry in the pingResultsTable is created for a corresponding
   pingCtlEntry once the test defined by this entry is started.

3.1.4.  pingProbeHistoryTable

   The results of past ping probes are stored in this table on a per-
   pingCtlEntry basis.  This table is initially indexed by
   pingCtlOwnerIndex and pingCtlTestName so that the results of a probe
   relate to the pingCtlEntry that caused it.  The maximum number of
   entries stored in this table per pingCtlEntry is determined by the
   value of pingCtlMaxRows.

   An implementation of this MIB will remove the oldest entry in the
   pingProbeHistoryTable of the corresponding entry in the pingCtlTable
   to allow the addition of a new entry once the number of rows in the
   pingProbeHistoryTable reaches the value specified by pingCtlMaxRows
   for the corresponding entry in the pingCtlTable.  An implementation
   MUST start assigning pingProbeHistoryIndex values at 1 and wrap after
   exceeding the maximum possible value, as defined by the limit of this
   object ('ffffffff'h).

3.2.  Traceroute MIB

   The DISMAN-TRACEROUTE-MIB consists of the following components:

      o   traceRouteMaxConcurrentRequests

      o   traceRouteCtlTable

      o   traceRouteResultsTable

      o   traceRouteProbeHistoryTable

      o   traceRouteHopsTable

3.2.1.  traceRouteMaxConcurrentRequests

   The object traceRouteMaxConcurrentRequests enables control of the
   maximum number of concurrent active requests that an agent
   implementation supports.  It is permissible for an agent either to
   limit the maximum upper range allowed for this object or to implement
   this object as read-only with an implementation limit expressed as
   its value.

3.2.2.  traceRouteCtlTable

   A remote traceroute test is started by setting
   traceRouteCtlAdminStatus to enabled(1).  The corresponding
   traceRouteCtlEntry MUST have been created, and its
   traceRouteCtlRowStatus set to active(1), prior to starting the test.
   A single SNMP PDU can be used to create and start a remote traceroute

   test.  Within the PDU, traceRouteCtlTargetAddress should be set to
   the target host's address (traceRouteCtlTargetAddressType will
   default to ipv4(1)), traceRouteCtlAdminStatus to enabled(1), and
   traceRouteCtlRowStatus to createAndGo(4).

   The first index element, traceRouteCtlOwnerIndex, is of type
   SnmpAdminString, a textual convention that allows for use of the
   SNMPv3 View-Based Access Control Model (RFC 3415 [RFC3415], VACM) and
   that allows a management application to identify its entries.  The
   second index, traceRouteCtlTestName (also an SnmpAdminString),
   enables the same management application to have multiple requests
   outstanding.

   Traceroute has a much longer theoretical maximum time for completion
   than ping: basically, 42 hours and 30 minutes (the product of
   traceRouteCtlTimeOut, traceRouteCtlProbesPerHop, and
   traceRouteCtlMaxTtl) plus some network transit time!  Use of the
   defaults defined within an traceRouteCtlEntry yields a maximum of 4
   minutes and 30 seconds for a default traceroute operation.  Clearly,
   42 plus hours is too long to wait for a traceroute operation to be
   completed.

   The maximum Time to Live (TTL) value in effect for traceroute
   determines how long the traceroute function will keep increasing the
   TTL value in the probe it transmits, hoping to reach the target host.
   The function ends whenever the maximum TTL is exceeded or the target
   host is reached.  The object traceRouteCtlMaxFailures was created in
   order to impose a throttle for how long traceroute continues to
   increase the TTL field in a probe without receiving any kind of
   response (timeouts).  It is RECOMMENDED that agent implementations
   impose a time limit for how long it allows a traceroute operation to
   take, relative to how the function is implemented.  For example, an
   implementation that can't process multiple traceroute operations at
   the same time SHOULD impose a shorter maximum allowed time period.

   A management application can delete an active remote traceroute
   request by setting the corresponding traceRouteCtlRowStatus object to
   destroy(6).

   The contents of the traceRouteCtlTable are preserved across reIPLs
   (Initial Program Loads) of its agent according to the values of each
   of the traceRouteCtlStorageType objects.

3.2.3.  traceRouteResultsTable

   An entry in the traceRouteResultsTable is created upon determining
   the results of a specific traceroute operation.  Entries in this
   table relate back to the traceRouteCtlEntry that caused the

   corresponding traceroute operation to occur.  The objects
   traceRouteResultsCurHopCount and traceRouteResultsCurProbeCount can
   be examined to determine how far the current remote traceroute
   operation has reached.

3.2.4.  traceRouteProbeHistoryTable

   The results of past traceroute probes can be stored in this table on
   a per-traceRouteCtlEntry basis.  This table is initially indexed by
   traceRouteCtlOwnerIndex and traceRouteCtlTestName so that the results
   of a probe relate to the traceRouteCtlEntry that caused it.  The
   number of entries stored in this table per traceRouteCtlEntry is
   determined by the value of traceRouteCtlMaxRows.

   An implementation of this MIB will remove the oldest entry in the
   traceRouteProbeHistoryTable of the corresponding entry in the
   traceRouteCtlTable to allow the addition of an new entry once the
   number of rows in the traceRouteProbeHistoryTable reaches the value
   of traceRouteCtlMaxRows for the corresponding entry in the
   traceRouteCtlTable.  An implementation MUST start assigning
   traceRouteProbeHistoryIndex values at 1 and wrap after exceeding the
   maximum possible value, as defined by the limit of this object
   ('ffffffff'h).

3.2.5.  traceRouteHopsTable

   The current traceroute path can be stored in this table on a per-
   traceRouteCtlEntry basis.  This table is initially indexed by
   traceRouteCtlOwnerIndex and traceRouteCtlTestName so that a
   traceroute path relates to the traceRouteCtlEntry that caused it.  A
   third index, traceRouteHopsHopIndex, enables keeping one
   traceRouteHopsEntry per traceroute hop.  Creation of
   traceRouteHopsTable entries is enabled by setting the corresponding
   traceRouteCtlCreateHopsEntries object to true(1).

3.3.  Lookup MIB

   The DISMAN-NSLOOKUP-MIB consists of the following components:

      o   lookupMaxConcurrentRequests and lookupPurgeTime

      o   lookupCtlTable

      o   lookupResultsTable

3.3.1.  lookupMaxConcurrentRequests and lookupPurgeTime

   The object lookupMaxConcurrentRequests enables control of the maximum
   number of concurrent active requests that an agent implementation is
   structured to support.  It is permissible for an agent either to
   limit the maximum upper range allowed for this object or to implement
   this object as read-only with an implementation limit expressed as
   its value.

   The object lookupPurgeTime provides a method for entries in the
   lookupCtlTable and lookupResultsTable to be automatically deleted
   after the corresponding operation is completed.

3.3.2.  lookupCtlTable

   A remote lookup operation is initiated by performing an SNMP SET
   request on lookupCtlRowStatus.  A single SNMP PDU can be used to
   create and start a remote lookup operation.  Within the PDU,
   lookupCtlTargetAddress should be set to the entity to be resolved
   (lookupCtlTargetAddressType will default to ipv4(1)) and
   lookupCtlRowStatus to createAndGo(4).  The object lookupCtlOperStatus
   can be examined to determine the state of a lookup operation.  A
   management application can delete an active remote lookup request by
   setting the corresponding lookupCtlRowStatus object to destroy(6).

   An lookupCtlEntry is initially indexed by lookupCtlOwnerIndex, which
   is a type of SnmpAdminString, a textual convention that allows for
   use of the SNMPv3 View-Based Access Control Model (RFC 3415
   [RFC3415],

   VACM) and that also allows for a management application to identify
   its entries.  The lookupCtlOwnerIndex portion of the index is then
   followed by lookupCtlOperationName.  The lookupCtlOperationName index
   enables the same lookupCtlOwnerIndex entity to have multiple
   outstanding requests.

   The value of lookupCtlTargetAddressType determines which lookup
   function to perform.  Specification of dns(16) as the value of this
   index implies that a function such as getaddrinfo() or
   gethostbyname() should be performed to determine the numeric
   addresses associated with a symbolic name via lookupResultsTable
   entries.  Use of a value of either ipv4(1) or ipv6(2) implies that a
   function such as getnameinfo() or gethostbyaddr() should be performed
   to determine the symbolic name(s) associated with a numeric address
   at a remote host.

3.3.3.  lookupResultsTable

   The lookupResultsTable is used to store the results of lookup
   operations.  Results to be reported here SHOULD be results of a
   lookup function that is commonly used by applications at the managed
   node.  This implies that results are not necessarily consistent with
   the results of a pure DNS lookup at the managed node, but may be
   influenced by local lookup tables or other sources of information,
   depending on the configuration of the managed node.

   The lookupResultsTable is initially indexed by the same index
   elements that the lookupCtlTable contains (lookupCtlOwnerIndex and
   lookupCtlOperationName) but has a third index element,
   lookupResultsIndex (Unsigned32 textual convention), in order to
   associate multiple results with the same lookupCtlEntry.

   A remote host can be multi-homed and can have multiple symbolic (DNS)
   names.  Therefore, a lookup operation can return multiple IP
   addresses and multiple symbolic names.

   If the lookup operation was performed for a certain address by using
   getnameinfo() or gethostbyaddr(), for example, then entries in the
   lookupResultsTable MUST be made for each host name returned.  If the
   lookup operation identifies one hostname as the host's 'official host
   name', then this name MUST be assigned a lookupResultsIndex of 1.

   If a lookup operation was performed for a certain symbolic name by
   using getaddrinfo() or gethostbyname(), for example, then entries in
   the lookupResultsTable MUST be made for each address returned.  The
   entries MUST be stored in the order that they are retrieved.  Values
   assigned to lookupResultsIndex MUST start at 1 and increase in order.

   An implementation SHOULD NOT retain SNMP-created entries in the
   lookupResultsTable across reIPLs (Initial Program Loads) of its
   agent, since management applications need to see consistent behavior
   with respect to the persistence of the table entries that they
   create.

3.4.  Conformance

   Each of the three MIB modules defined in this document has two
   current compliance statements, one for full compliance and one for
   minimum compliance.  The minimum compliance statements are intended
   to be applied to implementation for devices with very limited
   resources.  The main difference between full and minimum compliance
   is that for minimum compliance, dynamic creation and deletion of
   table entries is not required, whereas it is required for full
   compliance.

   In addition, the DISMAN-PING-MIB module and the DISMAN-TRACEROUTE-MIB
   modules each have a deprecated compliance statement that was current
   in RFC 2925.  Semantically, the new full compliance statements are
   identical to the deprecated ones.  But some of the object groups used
   in the old compliance statements needed to be split in order to
   support the new minimal compliance statements.

4.  Definitions

   The following MIB modules import from [RFC2863], [RFC3411], and
   [RFC4001].  They also use the REFERENCE clause to reference
   [RFC1812], [RFC2474], and [RFC3260].

4.1.  DISMAN-PING-MIB

   DISMAN-PING-MIB DEFINITIONS ::= BEGIN

   IMPORTS
       MODULE-IDENTITY, OBJECT-TYPE, Integer32,
       Unsigned32, Gauge32, mib-2,
       NOTIFICATION-TYPE, OBJECT-IDENTITY
           FROM SNMPv2-SMI                  -- RFC2578
       TEXTUAL-CONVENTION, RowStatus,
       StorageType, DateAndTime, TruthValue
           FROM SNMPv2-TC                   -- RFC2579
       MODULE-COMPLIANCE, OBJECT-GROUP,
       NOTIFICATION-GROUP
           FROM SNMPv2-CONF                 -- RFC2580
       InterfaceIndexOrZero                 -- RFC2863
           FROM IF-MIB
       SnmpAdminString
           FROM SNMP-FRAMEWORK-MIB          -- RFC3411
       InetAddressType, InetAddress
           FROM INET-ADDRESS-MIB;           -- RFC4001

    pingMIB MODULE-IDENTITY
       LAST-UPDATED "200606130000Z"         -- 13 June 2006
       ORGANIZATION "IETF Distributed Management Working Group"
       CONTACT-INFO
           "Juergen Quittek

           NEC Europe Ltd.
           Network Laboratories
           Kurfuersten-Anlage 36
           69115 Heidelberg
           Germany

           Phone: +49 6221 4342-115

           Email: quittek@netlab.nec.de"
       DESCRIPTION
           "The Ping MIB (DISMAN-PING-MIB) provides the capability of
           controlling the use of the ping function at a remote
           host.

           Copyright (C) The Internet Society (2006).  This version of
           this MIB module is part of RFC 4560; see the RFC itself for
           full legal notices."

        --  Revision history

        REVISION     "200606130000Z"         -- 13 June 2006
        DESCRIPTION
            "Updated version, published as RFC 4560.
                - Correctly considered IPv6 in DESCRIPTION
                  clause of pingCtlDataSize
                - Replaced references to RFC 2575 by RFC 3415
                - Replaced references to RFC 2571 by RFC 3411
                - Replaced references to RFC 2851 by RFC 4001
                - Added DEFVAL { {} } to definition of
                  pingCtlTrapGeneration
                - Changed DEFVAL of object pingCtlDescr from
                  DEFVAL { '00'H } to DEFVAL { ''H }
                - Changed DEFVAL of object pingCtlSourceAddressType
                  from DEFVAL { ipv4 } to DEFVAL { unknown }
                - Extended DESCRIPTION clause of pingResultsTable
                  describing re-initialization of entries
                - Changed SYNTAX of pingResultsProbeResponses and
                  pingResultsSentProbes from Unsigned32 to Gauge32
                - Changed status of pingCompliance to deprecated
                - Added pingFullCompliance and pingMinimumCompliance
                - Changed status of pingGroup and pingTimeStampGroup
                  to deprecated
                - Added pingMinimumGroup, pingCtlRowStatusGroup,
                  and pingHistoryGroup"

        REVISION     "200009210000Z"         -- 21 September 2000
        DESCRIPTION
            "Initial version, published as RFC 2925."

       ::= { mib-2 80 }

    -- Textual Conventions

     OperationResponseStatus ::= TEXTUAL-CONVENTION
       STATUS  current
       DESCRIPTION

           "Used to report the result of an operation:

            responseReceived(1) - Operation is completed successfully.
            unknown(2) - Operation failed due to unknown error.
            internalError(3) - An implementation detected an error
                 in its own processing that caused an operation
                 to fail.
            requestTimedOut(4) - Operation failed to receive a
                 valid reply within the time limit imposed on it.
            unknownDestinationAddress(5) - Invalid destination
                 address.
            noRouteToTarget(6) - Could not find a route to target.
            interfaceInactiveToTarget(7) - The interface to be
                 used in sending a probe is inactive, and an
                 alternate route does not exist.
            arpFailure(8) - Unable to resolve a target address to a
                 media-specific address.
            maxConcurrentLimitReached(9) - The maximum number of
                 concurrent active operations would have been exceeded
                 if the corresponding operation was allowed.
            unableToResolveDnsName(10) - The DNS name specified was
                 unable to be mapped to an IP address.
            invalidHostAddress(11) - The IP address for a host
                 has been determined to be invalid.  Examples of this
                 are broadcast or multicast addresses."
       SYNTAX INTEGER {
                    responseReceived(1),
                    unknown(2),
                    internalError(3),
                    requestTimedOut(4),
                    unknownDestinationAddress(5),
                    noRouteToTarget(6),
                    interfaceInactiveToTarget(7),
                    arpFailure(8),
                    maxConcurrentLimitReached(9),
                    unableToResolveDnsName(10),
                    invalidHostAddress(11)
                 }

    -- Top level structure of the MIB

    pingNotifications              OBJECT IDENTIFIER ::= { pingMIB 0 }
    pingObjects                    OBJECT IDENTIFIER ::= { pingMIB 1 }
    pingConformance                OBJECT IDENTIFIER ::= { pingMIB 2 }

    -- The registration node (point) for ping implementation types

    pingImplementationTypeDomains  OBJECT IDENTIFIER ::= { pingMIB 3 }

    pingIcmpEcho OBJECT-IDENTITY
       STATUS      current
       DESCRIPTION
           "Indicates that an implementation is using the Internet
           Control Message Protocol (ICMP) 'ECHO' facility."
       ::= { pingImplementationTypeDomains 1 }

    pingUdpEcho OBJECT-IDENTITY
       STATUS      current
       DESCRIPTION
           "Indicates that an implementation is using the UDP echo
           port (7)."

       REFERENCE
           "RFC 862, 'Echo Protocol'."
       ::= { pingImplementationTypeDomains 2 }

    pingSnmpQuery OBJECT-IDENTITY
       STATUS      current
       DESCRIPTION
           "Indicates that an implementation is using an SNMP query
            to calculate a round trip time."
       ::= { pingImplementationTypeDomains 3 }

    pingTcpConnectionAttempt OBJECT-IDENTITY
       STATUS      current
       DESCRIPTION
           "Indicates that an implementation is attempting to
           connect to a TCP port in order to calculate a round
           trip time."
       ::= { pingImplementationTypeDomains 4 }

    -- Simple Object Definitions

    pingMaxConcurrentRequests OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "requests"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The maximum number of concurrent active ping requests
          that are allowed within an agent implementation.  A value
          of 0 for this object implies that there is no limit for
          the number of concurrent active requests in effect.

          The limit applies only to new requests being activated.
          When a new value is set, the agent will continue processing
          all the requests already active, even if their number
          exceeds the limit just imposed."
       DEFVAL { 10 }
       ::= { pingObjects 1 }

    -- Ping Control Table

    pingCtlTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF PingCtlEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines the ping Control Table for providing, via SNMP,
           the capability of performing ping operations at
           a remote host.  The results of these operations are
           stored in the pingResultsTable and the
           pingProbeHistoryTable."
      ::= { pingObjects 2 }

    pingCtlEntry OBJECT-TYPE
       SYNTAX      PingCtlEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines an entry in the pingCtlTable.  The first index
           element, pingCtlOwnerIndex, is of type SnmpAdminString,
           a textual convention that allows for use of the SNMPv3
           View-Based Access Control Model (RFC 3415, VACM)
           and that allows a management application to identify its
           entries.  The second index, pingCtlTestName (also an
           SnmpAdminString), enables the same management
           application to have multiple outstanding requests."
       INDEX {
                pingCtlOwnerIndex,
                pingCtlTestName
             }
       ::= { pingCtlTable 1 }

    PingCtlEntry ::=
       SEQUENCE {
           pingCtlOwnerIndex             SnmpAdminString,
           pingCtlTestName               SnmpAdminString,
           pingCtlTargetAddressType      InetAddressType,
           pingCtlTargetAddress          InetAddress,
           pingCtlDataSize               Unsigned32,
           pingCtlTimeOut                Unsigned32,

           pingCtlProbeCount             Unsigned32,
           pingCtlAdminStatus            INTEGER,
           pingCtlDataFill               OCTET STRING,
           pingCtlFrequency              Unsigned32,
           pingCtlMaxRows                Unsigned32,
           pingCtlStorageType            StorageType,
           pingCtlTrapGeneration         BITS,
           pingCtlTrapProbeFailureFilter Unsigned32,
           pingCtlTrapTestFailureFilter  Unsigned32,
           pingCtlType                   OBJECT IDENTIFIER,
           pingCtlDescr                  SnmpAdminString,
           pingCtlSourceAddressType      InetAddressType,
           pingCtlSourceAddress          InetAddress,
           pingCtlIfIndex                InterfaceIndexOrZero,
           pingCtlByPassRouteTable       TruthValue,
           pingCtlDSField                Unsigned32,
           pingCtlRowStatus              RowStatus
       }

    pingCtlOwnerIndex OBJECT-TYPE
       SYNTAX      SnmpAdminString (SIZE(0..32))
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "To facilitate the provisioning of access control by a
          security administrator using the View-Based Access
          Control Model (RFC 2575, VACM) for tables in which
          multiple users may need to create or
          modify entries independently, the initial index is used
          as an 'owner index'.  Such an initial index has a syntax
          of SnmpAdminString and can thus be trivially mapped to a
          securityName or groupName defined in VACM, in
          accordance with a security policy.

          When used in conjunction with such a security policy, all
          entries in the table belonging to a particular user (or
          group) will have the same value for this initial index.
          For a given user's entries in a particular table, the
          object identifiers for the information in these entries
          will have the same subidentifiers (except for the 'column'
          subidentifier) up to the end of the encoded owner index.
          To configure VACM to permit access to this portion of the
          table, one would create vacmViewTreeFamilyTable entries
          with the value of vacmViewTreeFamilySubtree including
          the owner index portion, and vacmViewTreeFamilyMask
          'wildcarding' the column subidentifier.  More elaborate
          configurations are possible."
       ::= { pingCtlEntry 1 }

    pingCtlTestName OBJECT-TYPE
       SYNTAX      SnmpAdminString (SIZE(0..32))
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The name of the ping test.  This is locally unique, within
           the scope of a pingCtlOwnerIndex."
       ::= { pingCtlEntry 2 }

    pingCtlTargetAddressType OBJECT-TYPE
       SYNTAX      InetAddressType
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the type of host address to be used at a remote
           host for performing a ping operation."
       DEFVAL { unknown }
       ::= { pingCtlEntry 3 }

    pingCtlTargetAddress OBJECT-TYPE

       SYNTAX      InetAddress
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the host address to be used at a remote host for
           performing a ping operation.  The host address type is
           determined by the value of the corresponding
           pingCtlTargetAddressType.

           A value for this object MUST be set prior to transitioning
           its corresponding pingCtlEntry to active(1) via
           pingCtlRowStatus."
       DEFVAL { ''H }
       ::= { pingCtlEntry 4 }

    pingCtlDataSize OBJECT-TYPE
       SYNTAX      Unsigned32 (0..65507)
       UNITS       "octets"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the size of the data portion to be
           transmitted in a ping operation, in octets.  Whether this
           value can be applied depends on the selected
           implementation method for performing a ping operation,
           indicated by pingCtlType in the same conceptual row.
           If the method used allows applying the value contained

           in this object, then it MUST be applied.  If the specified
           size is not appropriate for the chosen ping method, the
           implementation SHOULD use whatever size (appropriate to
           the method) is closest to the specified size.

           The maximum value for this object was computed by
           subtracting the smallest possible IP header size of
           20 octets (IPv4 header with no options) and the UDP
           header size of 8 octets from the maximum IP packet size.
           An IP packet has a maximum size of 65535 octets
           (excluding IPv6 Jumbograms)."
       DEFVAL { 0 }
       ::= { pingCtlEntry 5 }

    pingCtlTimeOut OBJECT-TYPE
       SYNTAX      Unsigned32 (1..60)
       UNITS       "seconds"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the time-out value, in seconds, for a
           remote ping operation."
       DEFVAL { 3 }

       ::= { pingCtlEntry 6 }

    pingCtlProbeCount OBJECT-TYPE
       SYNTAX      Unsigned32 (1..15)
       UNITS       "probes"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the number of times to perform a ping
           operation at a remote host as part of a single ping test."
       DEFVAL { 1 }
       ::= { pingCtlEntry 7 }

    pingCtlAdminStatus OBJECT-TYPE
       SYNTAX      INTEGER {
                             enabled(1), -- test should be started
                             disabled(2) -- test should be stopped
                           }
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Reflects the desired state that a pingCtlEntry should be
           in:

              enabled(1)  - Attempt to activate the test as defined by
                            this pingCtlEntry.
              disabled(2) - Deactivate the test as defined by this
                            pingCtlEntry.

           Refer to the corresponding pingResultsOperStatus to
           determine the operational state of the test defined by
           this entry."
        DEFVAL { disabled }
       ::= { pingCtlEntry 8 }

    pingCtlDataFill  OBJECT-TYPE
       SYNTAX      OCTET STRING (SIZE(0..1024))
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The content of this object is used together with the
           corresponding pingCtlDataSize value to determine how to
           fill the data portion of a probe packet.  The option of
           selecting a data fill pattern can be useful when links
           are compressed or have data pattern sensitivities.  The
           contents of pingCtlDataFill should be repeated in a ping
           packet when the size of the data portion of the ping
           packet is greater than the size of pingCtlDataFill."
       DEFVAL { '00'H }
       ::= { pingCtlEntry 9 }

    pingCtlFrequency  OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "seconds"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The number of seconds to wait before repeating a ping test
           as defined by the value of the various objects in the
           corresponding row.

           A single ping test consists of a series of ping probes.
           The number of probes is determined by the value of the
           corresponding pingCtlProbeCount object.  After a single
           test is completed the number of seconds as defined by the
           value of pingCtlFrequency MUST elapse before the
           next ping test is started.

           A value of 0 for this object implies that the test
           as defined by the corresponding entry will not be
           repeated."
       DEFVAL { 0 }

       ::= { pingCtlEntry 10 }

    pingCtlMaxRows OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "rows"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The maximum number of corresponding entries allowed
           in the pingProbeHistoryTable.  An implementation of this
           MIB will remove the oldest corresponding entry in the
           pingProbeHistoryTable to allow the addition of an
           new entry once the number of corresponding rows in the
           pingProbeHistoryTable reaches this value.

           Old entries are not removed when a new test is
           started.  Entries are added to the pingProbeHistoryTable
           until pingCtlMaxRows is reached before entries begin to
           be removed.

           A value of 0 for this object disables creation of
           pingProbeHistoryTable entries."
       DEFVAL      { 50 }
       ::= { pingCtlEntry 11 }

    pingCtlStorageType OBJECT-TYPE
       SYNTAX      StorageType
       MAX-ACCESS  read-create
       STATUS      current

       DESCRIPTION
           "The storage type for this conceptual row.
           Conceptual rows having the value 'permanent' need not
           allow write-access to any columnar objects in the row."
       DEFVAL { nonVolatile }
       ::= { pingCtlEntry 12 }

    pingCtlTrapGeneration OBJECT-TYPE
       SYNTAX      BITS {
                      probeFailure(0),
                      testFailure(1),
                      testCompletion(2)
                     }
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The value of this object determines when and whether
           to generate a notification for this entry:

           probeFailure(0)   - Generate a pingProbeFailed
               notification subject to the value of
               pingCtlTrapProbeFailureFilter.  The object
               pingCtlTrapProbeFailureFilter can be used
               to specify the number of consecutive probe
               failures that are required before a
               pingProbeFailed notification can be generated.
           testFailure(1)    - Generate a pingTestFailed
               notification.  In this instance the object
               pingCtlTrapTestFailureFilter can be used to
               determine the number of probe failures that
               signal when a test fails.
           testCompletion(2) - Generate a pingTestCompleted
               notification.

           By default, no bits are set, indicating that
           none of the above options is selected."
       DEFVAL { {} }  -- no bits set.
       ::= { pingCtlEntry 13 }

    pingCtlTrapProbeFailureFilter OBJECT-TYPE
       SYNTAX      Unsigned32 (0..15)
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The value of this object is used to determine when
           to generate a pingProbeFailed NOTIFICATION.

           Setting BIT probeFailure(0) of object
           pingCtlTrapGeneration to '1' implies that a
           pingProbeFailed NOTIFICATION is generated only when

           a number of consecutive ping probes equal to the
           value of pingCtlTrapProbeFailureFilter fail within
           a given ping test.  After triggering the notification,
           the probe failure counter is reset to zero."
       DEFVAL { 1 }
       ::= { pingCtlEntry 14 }

    pingCtlTrapTestFailureFilter OBJECT-TYPE
       SYNTAX      Unsigned32 (0..15)
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The value of this object is used to determine when
           to generate a pingTestFailed NOTIFICATION.

           Setting BIT testFailure(1) of object

           pingCtlTrapGeneration to '1' implies that a
           pingTestFailed NOTIFICATION is generated only when
           a number of consecutive ping tests equal to the
           value of pingCtlTrapProbeFailureFilter fail.
           After triggering the notification, the test failure
           counter is reset to zero."
       DEFVAL { 1 }
       ::= { pingCtlEntry 15 }

    pingCtlType OBJECT-TYPE
       SYNTAX      OBJECT IDENTIFIER
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The value of this object is used either to report or
           to select the implementation method to be used for
           calculating a ping response time.  The value of this
           object MAY be selected from pingImplementationTypeDomains.

           Additional implementation types SHOULD be allocated as
           required by implementers of the DISMAN-PING-MIB under
           their enterprise-specific registration point and not
           beneath pingImplementationTypeDomains."
       DEFVAL { pingIcmpEcho }
       ::= { pingCtlEntry 16 }

    pingCtlDescr OBJECT-TYPE
       SYNTAX      SnmpAdminString
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The purpose of this object is to provide a
           descriptive name of the remote ping test."
       DEFVAL { ''H }

       ::= { pingCtlEntry 17 }

    pingCtlSourceAddressType OBJECT-TYPE
       SYNTAX      InetAddressType
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the type of the source address,
           pingCtlSourceAddress, to be used at a remote host
           when a ping operation is performed."
       DEFVAL { unknown }
       ::= { pingCtlEntry 18 }

     pingCtlSourceAddress OBJECT-TYPE
       SYNTAX      InetAddress
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Use the specified IP address (which must be given in
           numeric form, not as a hostname) as the source address
           in outgoing probe packets.  On hosts with more than one
           IP address, this option can be used to select the address
           to be used.  If the IP address is not one of this
           machine's interface addresses, an error is returned and
           nothing is sent.  A zero-length octet string value for
           this object disables source address specification.

           The address type (InetAddressType) that relates to
           this object is specified by the corresponding value
           of pingCtlSourceAddressType."
       DEFVAL { ''H }
       ::= { pingCtlEntry 19 }

    pingCtlIfIndex OBJECT-TYPE
       SYNTAX      InterfaceIndexOrZero
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Setting this object to an interface's ifIndex prior
           to starting a remote ping operation directs
           the ping probes to be transmitted over the
           specified interface.  A value of zero for this object
           means that this option is not enabled."
       DEFVAL { 0 }
       ::= { pingCtlEntry 20 }

    pingCtlByPassRouteTable OBJECT-TYPE
       SYNTAX      TruthValue
       MAX-ACCESS  read-create
       STATUS      current

       DESCRIPTION
          "The purpose of this object is to enable optional
          bypassing the route table.  If enabled, the remote
          host will bypass the normal routing tables and send
          directly to a host on an attached network.  If the
          host is not on a directly attached network, an
          error is returned.  This option can be used to perform
          the ping operation to a local host through an
          interface that has no route defined (e.g., after the
          interface was dropped by the routing daemon at the host)."

       DEFVAL { false }
       ::= { pingCtlEntry 21 }

    pingCtlDSField OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the value to store in the Type of Service
           (TOS) octet in the IPv4 header or in the Traffic
           Class octet in the IPv6 header, respectively, of the
           IP packet used to encapsulate the ping probe.

           The octet to be set in the IP header contains the
           Differentiated Services (DS) Field in the six most
           significant bits.

           This option can be used to determine what effect an
           explicit DS Field setting has on a ping response.
           Not all values are legal or meaningful.  A value of 0
           means that the function represented by this option is
           not supported.  DS Field usage is often not supported
           by IP implementations, and not all values are supported.
           Refer to RFC 2474 and RFC 3260 for guidance on usage of
           this field."
       REFERENCE
           "Refer to RFC 1812 for the definition of the IPv4 TOS
           octet and to RFC 2460 for the definition of the IPv6
           Traffic Class octet.  Refer to RFC 2474 and RFC 3260
           for the definition of the Differentiated Services Field."
       DEFVAL { 0 }
       ::= { pingCtlEntry 22 }

    pingCtlRowStatus OBJECT-TYPE
       SYNTAX      RowStatus
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "This object allows entries to be created and deleted
           in the pingCtlTable.  Deletion of an entry in this
           table results in the deletion of all corresponding (same
           pingCtlOwnerIndex and pingCtlTestName index values)
           pingResultsTable and pingProbeHistoryTable entries.

           A value MUST be specified for pingCtlTargetAddress
           prior to acceptance of a transition to active(1) state.

           When a value for pingCtlTargetAddress is set,

           the value of object pingCtlRowStatus changes
           from notReady(3) to notInService(2).

           Activation of a remote ping operation is controlled
           via pingCtlAdminStatus, not by changing
           this object's value to active(1).

           Transitions in and out of active(1) state are not
           allowed while an entry's pingResultsOperStatus is
           active(1), with the exception that deletion of
           an entry in this table by setting its RowStatus
           object to destroy(6) will stop an active
           ping operation.

           The operational state of a ping operation
           can be determined by examination of its
           pingResultsOperStatus object."
       REFERENCE
           "See definition of RowStatus in RFC 2579, 'Textual
           Conventions for SMIv2.'"
       ::= { pingCtlEntry 23 }

   -- Ping Results Table

    pingResultsTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF PingResultsEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines the Ping Results Table for providing
           the capability of performing ping operations at
           a remote host.  The results of these operations are
           stored in the pingResultsTable and the pingProbeHistoryTable.

           An entry is added to the pingResultsTable when an
           pingCtlEntry is started by successful transition
           of its pingCtlAdminStatus object to enabled(1).

           If the object pingCtlAdminStatus already has the value
           enabled(1), and if the corresponding pingResultsOperStatus
           object has the value completed(3), then successfully writing
           enabled(1) to object pingCtlAdminStatus re-initializes the
           already existing entry in the pingResultsTable.  The values
           of objects in the re-initialized entry are the same as the
           values of objects in a new entry would be.

           An entry is removed from the pingResultsTable when
           its corresponding pingCtlEntry is deleted."

      ::= { pingObjects 3 }

    pingResultsEntry OBJECT-TYPE
       SYNTAX      PingResultsEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines an entry in the pingResultsTable.  The
           pingResultsTable has the same indexing as the
           pingCtlTable so that a pingResultsEntry
           corresponds to the pingCtlEntry that caused it to
           be created."
       INDEX {
                pingCtlOwnerIndex,
                pingCtlTestName
             }
       ::= { pingResultsTable 1 }

    PingResultsEntry ::=
       SEQUENCE {
           pingResultsOperStatus          INTEGER,
           pingResultsIpTargetAddressType InetAddressType,
           pingResultsIpTargetAddress     InetAddress,
           pingResultsMinRtt              Unsigned32,
           pingResultsMaxRtt              Unsigned32,
           pingResultsAverageRtt          Unsigned32,
           pingResultsProbeResponses      Gauge32,
           pingResultsSentProbes          Gauge32,
           pingResultsRttSumOfSquares     Unsigned32,
           pingResultsLastGoodProbe       DateAndTime
        }

    pingResultsOperStatus OBJECT-TYPE
       SYNTAX      INTEGER {
                             enabled(1),   -- test is in progress
                             disabled(2),  -- test has stopped
                             completed(3)  -- test is completed
                           }
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Reflects the operational state of a pingCtlEntry:

              enabled(1)    - Test is active.
              disabled(2)   - Test has stopped.
              completed(3)  - Test is completed."
       ::= { pingResultsEntry 1 }

    pingResultsIpTargetAddressType OBJECT-TYPE
       SYNTAX      InetAddressType
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "This object indicates the type of address stored
           in the corresponding pingResultsIpTargetAddress
           object."
       DEFVAL { unknown }
       ::= { pingResultsEntry 2 }

    pingResultsIpTargetAddress OBJECT-TYPE
       SYNTAX      InetAddress
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "This object reports the IP address associated
           with a pingCtlTargetAddress value when the destination
           address is specified as a DNS name.  The value of
           this object should be a zero-length octet string
           when a DNS name is not specified or when a
           specified DNS name fails to resolve.

           The address type (InetAddressType) that relates to
           this object is specified by the corresponding value
           of pingResultsIpTargetAddressType."
       DEFVAL { ''H }
       ::= { pingResultsEntry 3 }

    pingResultsMinRtt OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "milliseconds"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The minimum ping round-trip-time (RTT) received.  A value
           of 0 for this object implies that no RTT has been received."
       ::= { pingResultsEntry 4 }

    pingResultsMaxRtt OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "milliseconds"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION

           "The maximum ping round-trip-time (RTT) received.  A value
           of 0 for this object implies that no RTT has been received."

       ::= { pingResultsEntry 5 }

     pingResultsAverageRtt OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "milliseconds"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The current average ping round-trip-time (RTT)."
       ::= { pingResultsEntry 6 }

     pingResultsProbeResponses OBJECT-TYPE
       SYNTAX      Gauge32
       UNITS       "responses"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Number of responses received for the corresponding
           pingCtlEntry and pingResultsEntry.  The value of this object
           MUST be reported as 0 when no probe responses have been
           received."
       ::= { pingResultsEntry 7 }

     pingResultsSentProbes OBJECT-TYPE
       SYNTAX      Gauge32
       UNITS       "probes"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The value of this object reflects the number of probes sent
           for the corresponding pingCtlEntry and pingResultsEntry.
           The value of this object MUST be reported as 0 when no probes
           have been sent."
       ::= { pingResultsEntry 8 }

     pingResultsRttSumOfSquares OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "milliseconds"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "This object contains the sum of the squares for all ping
           responses received.  Its purpose is to enable standard
           deviation calculation.  The value of this object MUST
           be reported as 0 when no ping responses have been
           received."
       ::= { pingResultsEntry 9 }

    pingResultsLastGoodProbe OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Date and time when the last response was received for
           a probe."
       ::= { pingResultsEntry 10 }

    -- Ping Probe History Table

    pingProbeHistoryTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF PingProbeHistoryEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines a table for storing the results of ping
           operations.  The number of entries in this table is
           limited per entry in the pingCtlTable by the value
           of the corresponding pingCtlMaxRows object.

           An entry in this table is created when the result of
           a ping probe is determined.  The initial 2 instance
           identifier index values identify the pingCtlEntry
           that a probe result (pingProbeHistoryEntry) belongs
           to.  An entry is removed from this table when
           its corresponding pingCtlEntry is deleted.

           An implementation of this MIB will remove the oldest
           entry in the pingProbeHistoryTable of the
           corresponding entry in the pingCtlTable to allow
           the addition of an new entry once the number of rows
           in the pingProbeHistoryTable reaches the value
           specified by pingCtlMaxRows for the corresponding
           entry in the pingCtlTable."
      ::= { pingObjects 4 }

    pingProbeHistoryEntry OBJECT-TYPE
       SYNTAX      PingProbeHistoryEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines an entry in the pingProbeHistoryTable.
           The first two index elements identify the
           pingCtlEntry that a pingProbeHistoryEntry belongs
           to.  The third index element selects a single
           probe result."
       INDEX {

                pingCtlOwnerIndex,
                pingCtlTestName,
                pingProbeHistoryIndex
              }
       ::= { pingProbeHistoryTable 1 }

    PingProbeHistoryEntry ::=
       SEQUENCE {
           pingProbeHistoryIndex         Unsigned32,
           pingProbeHistoryResponse      Unsigned32,
           pingProbeHistoryStatus        OperationResponseStatus,
           pingProbeHistoryLastRC        Integer32,
           pingProbeHistoryTime          DateAndTime
       }

    pingProbeHistoryIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (1..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "An entry in this table is created when the result of
           a ping probe is determined.  The initial 2 instance
           identifier index values identify the pingCtlEntry
           that a probe result (pingProbeHistoryEntry) belongs
           to.

           An implementation MUST start assigning
           pingProbeHistoryIndex values at 1 and wrap after
           exceeding the maximum possible value as defined by
           the limit of this object ('ffffffff'h)."
       ::= { pingProbeHistoryEntry 1 }

    pingProbeHistoryResponse OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "milliseconds"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The amount of time measured in milliseconds from when
           a probe was sent to when its response was received or
           when it timed out.  The value of this object is reported
           as 0 when it is not possible to transmit a probe."
       ::= { pingProbeHistoryEntry 2 }

    pingProbeHistoryStatus OBJECT-TYPE
       SYNTAX      OperationResponseStatus
       MAX-ACCESS  read-only
       STATUS      current

       DESCRIPTION
           "The result of a particular probe done by a remote host."
       ::= { pingProbeHistoryEntry 3 }

    pingProbeHistoryLastRC        OBJECT-TYPE
       SYNTAX      Integer32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The last implementation-method-specific reply code received.
           If the ICMP Echo capability is being used, then a successful
           probe ends when an ICMP response is received that contains
           the code ICMP_ECHOREPLY(0).  The ICMP codes are maintained
           by IANA.  Standardized ICMP codes are listed at
           http://www.iana.org/assignments/icmp-parameters.
           The ICMPv6 codes are listed at
           http://www.iana.org/assignments/icmpv6-parameters."
       ::= { pingProbeHistoryEntry 4 }

    pingProbeHistoryTime OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Timestamp for when this probe result was determined."
       ::= { pingProbeHistoryEntry 5 }

    -- Notification Definition section

    pingProbeFailed NOTIFICATION-TYPE
         OBJECTS {
           pingCtlTargetAddressType,
           pingCtlTargetAddress,
           pingResultsOperStatus,
           pingResultsIpTargetAddressType,
           pingResultsIpTargetAddress,
           pingResultsMinRtt,
           pingResultsMaxRtt,
           pingResultsAverageRtt,
           pingResultsProbeResponses,
           pingResultsSentProbes,
           pingResultsRttSumOfSquares,
           pingResultsLastGoodProbe
         }
         STATUS  current
         DESCRIPTION
             "Generated when a probe failure is detected, when the

             corresponding pingCtlTrapGeneration object is set to
             probeFailure(0), subject to the value of
             pingCtlTrapProbeFailureFilter.  The object
             pingCtlTrapProbeFailureFilter can be used to specify the
             number of consecutive probe failures that are required
             before this notification can be generated."

         ::= { pingNotifications 1 }

    pingTestFailed NOTIFICATION-TYPE
         OBJECTS {
           pingCtlTargetAddressType,
           pingCtlTargetAddress,
           pingResultsOperStatus,
           pingResultsIpTargetAddressType,
           pingResultsIpTargetAddress,
           pingResultsMinRtt,
           pingResultsMaxRtt,
           pingResultsAverageRtt,
           pingResultsProbeResponses,
           pingResultsSentProbes,
           pingResultsRttSumOfSquares,
           pingResultsLastGoodProbe
         }
         STATUS  current
         DESCRIPTION
             "Generated when a ping test is determined to have failed,
             when the corresponding pingCtlTrapGeneration object is
             set to testFailure(1).  In this instance,
             pingCtlTrapTestFailureFilter should specify the number of
             probes in a test required to have failed in order to
             consider the test failed."
         ::= { pingNotifications 2 }

    pingTestCompleted NOTIFICATION-TYPE
         OBJECTS {
           pingCtlTargetAddressType,
           pingCtlTargetAddress,
           pingResultsOperStatus,
           pingResultsIpTargetAddressType,
           pingResultsIpTargetAddress,
           pingResultsMinRtt,
           pingResultsMaxRtt,
           pingResultsAverageRtt,
           pingResultsProbeResponses,
           pingResultsSentProbes,
           pingResultsRttSumOfSquares,
           pingResultsLastGoodProbe

         }
         STATUS  current
         DESCRIPTION
             "Generated at the completion of a ping test when the
             corresponding pingCtlTrapGeneration object has the
             testCompletion(2) bit set."
         ::= { pingNotifications 3 }

    -- Conformance information

    -- Compliance statements

    pingCompliances OBJECT IDENTIFIER ::= { pingConformance 1 }
    pingGroups      OBJECT IDENTIFIER ::= { pingConformance 2 }

    -- Compliance statements

    pingFullCompliance MODULE-COMPLIANCE
       STATUS  current
       DESCRIPTION
               "The compliance statement for SNMP entities that
               fully implement the DISMAN-PING-MIB."
       MODULE  -- this module
           MANDATORY-GROUPS {
                               pingMinimumGroup,
                               pingCtlRowStatusGroup,
                               pingHistoryGroup,
                               pingNotificationsGroup
                             }

           OBJECT pingMaxConcurrentRequests
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support set
               operations to this object."

           OBJECT pingCtlStorageType
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required."

           OBJECT pingCtlType
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  In addition, the only
               value that MUST be supported by an implementation is
               pingIcmpEcho."

           OBJECT pingCtlSourceAddressType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access to this object is not required by
               implementations that are not capable of binding the
               send socket with a source address.  An implementation
               is only required to support IPv4 and IPv6 addresses."

           OBJECT pingCtlSourceAddress
           SYNTAX  InetAddress (SIZE(0|4|16))
           MIN-ACCESS  read-only

           DESCRIPTION
               "Write access to this object is not required by
               implementations that are not capable of binding the
               send socket with a source address.  An implementation
               is only required to support IPv4 and IPv6 addresses."

           OBJECT pingCtlIfIndex
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is
               not supported, return a 0 as the value of this object.
               A value of 0 means that the function represented by
               this option is not supported."

           OBJECT pingCtlByPassRouteTable
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access to this object is not required by
               implementations that are not capable of its
               implementation.  The function represented by this
               object is implementable if the setsockopt
               SOL_SOCKET SO_DONTROUTE option is supported."

           OBJECT pingCtlDSField
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is
               not supported, return a 0 as the value of this object.
               A value of 0 means that the function represented by
               this option is not supported."

           OBJECT pingResultsIpTargetAddressType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           DESCRIPTION
               "An implementation is only required to

               support IPv4 and IPv6 addresses."

           OBJECT pingResultsIpTargetAddress
           SYNTAX  InetAddress (SIZE(0|4|16))
           DESCRIPTION
               "An implementation is only required to
               support IPv4 and globally unique IPv6 addresses."

           OBJECT pingResultsLastGoodProbe
           DESCRIPTION
               "This object is mandatory for implementations that have
               access to a system clock and that are capable of setting
               the values for DateAndTime objects.  It is RECOMMENDED
               that when this object is not supported its values
               be reported as '0000000000000000'H."

           OBJECT pingProbeHistoryTime
           DESCRIPTION
               "This object is mandatory for implementations that have
               access to a system clock and that are capable of setting
               the values for DateAndTime objects.  It is RECOMMENDED
               that when this object is not supported its values
               be reported as '0000000000000000'H."
       ::= { pingCompliances 2 }

    pingMinimumCompliance MODULE-COMPLIANCE
       STATUS  current
       DESCRIPTION
               "The minimum compliance statement for SNMP entities
               that implement the minimal subset of the
               DISMAN-PING-MIB.  Implementors might choose this
               subset for small devices with limited resources."
       MODULE  -- this module
           MANDATORY-GROUPS { pingMinimumGroup }

           GROUP pingCtlRowStatusGroup
           DESCRIPTION
               "A compliant implementation does not have to implement
               the pingCtlRowStatusGroup."

           GROUP pingHistoryGroup
           DESCRIPTION
               "A compliant implementation does not have to implement
               the pingHistoryGroup."

           GROUP pingNotificationsGroup
           DESCRIPTION
               "A compliant implementation does not have to implement

               the pingNotificationsGroup."

           OBJECT pingMaxConcurrentRequests
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support set
               operations to this object."

           OBJECT pingCtlDataFill
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support set
               operations to this object."

           OBJECT pingCtlFrequency
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is
               not supported, return a 0 as the value of this object.
               A value of 0 means that the function represented by
               this option is not supported."

           OBJECT pingCtlMaxRows
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If the
               pingHistoryGroup is not implemented, then write
               access to this object MUST be disabled, and the object
               MUST return a value of 0 when retrieved."

           OBJECT pingCtlStorageType
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required."

           OBJECT pingCtlTrapGeneration
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If the
               pingNotificationsGroup is not implemented, then write
               access to this object MUST be disabled, and the object
               MUST return a value with no bit set when retrieved.
               No bit set indicates that not notification is
               generated."

           OBJECT pingCtlTrapProbeFailureFilter
           MIN-ACCESS  read-only
           DESCRIPTION

               "If write access to pingCtlTrapGeneration is not
               supported, then write access to this object must also
               not be supported.  In this case, return 0 as the value
               of this object."

           OBJECT pingCtlTrapTestFailureFilter
           MIN-ACCESS  read-only
           DESCRIPTION
               "If write access to pingCtlTrapGeneration is not
               supported, then write access to this object must also
               not be supported.  In this case, return 0 as the value
               of this object."

           OBJECT pingCtlType
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  In addition, the only
               value that MUST be supported by an implementation is
               pingIcmpEcho."

           OBJECT pingCtlDescr
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support set
               operations to this object."

           OBJECT pingCtlSourceAddressType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access to this object is not required by
               implementations that are not capable of binding the
               send socket with a source address.  An implementation
               is only required to support IPv4 and IPv6 addresses."

           OBJECT pingCtlSourceAddress
           SYNTAX  InetAddress (SIZE(0|4|16))
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access to this object is not required by
               implementations that are not capable of binding the
               send socket with a source address.  An implementation
               is only required to support IPv4 and IPv6 addresses."

           OBJECT pingCtlIfIndex
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is

               not supported, return a 0 as the value of this object.
               A value of 0 means that the function represented by
               this option is not supported."

           OBJECT pingCtlByPassRouteTable
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is
               not supported, return false(2) as the value of this
               object.  A value of false(2) means that the function
               represented by this option is not supported."

           OBJECT pingCtlDSField
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is
               not supported, return a 0 as the value of this object.
               A value of 0 means that the function represented by
               this option is not supported."

           OBJECT pingResultsIpTargetAddressType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }

           DESCRIPTION
               "An implementation is only required to
               support IPv4 and IPv6 addresses."

           OBJECT pingResultsIpTargetAddress
           SYNTAX  InetAddress (SIZE(0|4|16))
           DESCRIPTION
               "An implementation is only required to
               support IPv4 and globally unique IPv6 addresses."

           OBJECT pingResultsLastGoodProbe
           DESCRIPTION
               "This object is mandatory for implementations that have
               access to a system clock and that are capable of setting
               the values for DateAndTime objects.  It is RECOMMENDED
               that when this object is not supported its values
               be reported as '0000000000000000'H."

           OBJECT pingProbeHistoryTime
           DESCRIPTION
               "If the pingHistoryGroup is implemented, then this
               object is mandatory for implementations that have
               access to a system clock and that are capable of setting
               the values for DateAndTime objects.  It is RECOMMENDED
               that when this object is not supported its values

               be reported as '0000000000000000'H."

       ::= { pingCompliances 3 }

    pingCompliance MODULE-COMPLIANCE
       STATUS  deprecated
       DESCRIPTION
               "The compliance statement for the DISMAN-PING-MIB.  This
               compliance statement has been deprecated because the
               group pingGroup and the pingTimeStampGroup have been
               split and deprecated.  The pingFullCompliance statement
               is semantically identical to the deprecated
               pingCompliance statement."

       MODULE  -- this module
           MANDATORY-GROUPS {
                               pingGroup,
                               pingNotificationsGroup
                             }
           GROUP pingTimeStampGroup
           DESCRIPTION
               "This group is mandatory for implementations that have
               access to a system clock and that are capable of setting
               the values for DateAndTime objects.  It is RECOMMENDED
               that when this group is not supported the values
               for the objects in this group be reported as
               '0000000000000000'H."

           OBJECT pingMaxConcurrentRequests
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support set
               operations to this object."

           OBJECT pingCtlStorageType
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  It is also allowed
               that implementations support only the volatile
               StorageType enumeration."

           OBJECT pingCtlType
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  In addition, the only
               value that MUST be supported by an implementation is
               pingIcmpEcho."

           OBJECT pingCtlByPassRouteTable
           MIN-ACCESS  read-only
           DESCRIPTION
               "This object is not required by implementations that
               are not capable of its implementation.  The function
               represented by this object is implementable if the
               setsockopt SOL_SOCKET SO_DONTROUTE option is
               supported."

           OBJECT pingCtlSourceAddressType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           MIN-ACCESS  read-only
           DESCRIPTION
               "This object is not required by implementations that
               are not capable of binding the send socket with a
               source address.  An implementation is only required to
               support IPv4 and IPv6 addresses."

           OBJECT pingCtlSourceAddress
           SYNTAX  InetAddress (SIZE(0|4|16))
           MIN-ACCESS  read-only
           DESCRIPTION
               "This object is not required by implementations that
               are not capable of binding the send socket with a
               source address.  An implementation is only required to
               support IPv4 and globally unique IPv6 addresses."

           OBJECT pingCtlIfIndex
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  When write access is
               not supported, return a 0 as the value of this object.
               A value of 0 means that the function represented by
               this option is not supported."

           OBJECT pingCtlDSField
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  When write access is
               not supported, return a 0 as the value of this object.
               A value of 0 means that the function represented by
               this option is not supported."

           OBJECT pingResultsIpTargetAddressType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           DESCRIPTION
               "An implementation is only required to
               support IPv4 and IPv6 addresses."

           OBJECT pingResultsIpTargetAddress
           SYNTAX  InetAddress (SIZE(0|4|16))
           DESCRIPTION
               "An implementation is only required to
               support IPv4 and globally unique IPv6 addresses."
       ::= { pingCompliances 1 }

    -- MIB groupings

    pingMinimumGroup OBJECT-GROUP
      OBJECTS {
                pingMaxConcurrentRequests,
                pingCtlTargetAddressType,
                pingCtlTargetAddress,
                pingCtlDataSize,
                pingCtlTimeOut,
                pingCtlProbeCount,
                pingCtlAdminStatus,
                pingCtlDataFill,
                pingCtlFrequency,
                pingCtlMaxRows,
                pingCtlStorageType,
                pingCtlTrapGeneration,
                pingCtlTrapProbeFailureFilter,
                pingCtlTrapTestFailureFilter,
                pingCtlType,
                pingCtlDescr,

                pingCtlByPassRouteTable,
                pingCtlSourceAddressType,
                pingCtlSourceAddress,
                pingCtlIfIndex,
                pingCtlDSField,
                pingResultsOperStatus,
                pingResultsIpTargetAddressType,
                pingResultsIpTargetAddress,
                pingResultsMinRtt,
                pingResultsMaxRtt,
                pingResultsAverageRtt,
                pingResultsProbeResponses,
                pingResultsSentProbes,
                pingResultsRttSumOfSquares,
                pingResultsLastGoodProbe
              }
      STATUS  current
      DESCRIPTION
          "The group of objects that constitute the remote ping
          capability."

       ::= { pingGroups 4 }

    pingCtlRowStatusGroup OBJECT-GROUP
      OBJECTS {
                pingCtlRowStatus
              }
      STATUS  current
      DESCRIPTION
          "The RowStatus object of the pingCtlTable."
       ::= { pingGroups 5 }

    pingHistoryGroup OBJECT-GROUP
      OBJECTS {
                pingProbeHistoryResponse,
                pingProbeHistoryStatus,
                pingProbeHistoryLastRC,
                pingProbeHistoryTime
              }
      STATUS  current
      DESCRIPTION
          "The group of objects that constitute the history
          capability."
       ::= { pingGroups 6 }

    pingNotificationsGroup NOTIFICATION-GROUP
      NOTIFICATIONS {
                pingProbeFailed,
                pingTestFailed,
                pingTestCompleted
             }

      STATUS        current
      DESCRIPTION
          "The notification that are required to be supported by
          implementations of this MIB."
      ::= { pingGroups 3 }

    pingGroup OBJECT-GROUP
      OBJECTS {
                pingMaxConcurrentRequests,
                pingCtlTargetAddressType,
                pingCtlTargetAddress,
                pingCtlDataSize,
                pingCtlTimeOut,
                pingCtlProbeCount,
                pingCtlAdminStatus,
                pingCtlDataFill,
                pingCtlFrequency,

                pingCtlMaxRows,
                pingCtlStorageType,
                pingCtlTrapGeneration,
                pingCtlTrapProbeFailureFilter,
                pingCtlTrapTestFailureFilter,
                pingCtlType,
                pingCtlDescr,
                pingCtlByPassRouteTable,
                pingCtlSourceAddressType,
                pingCtlSourceAddress,
                pingCtlIfIndex,
                pingCtlDSField,
                pingCtlRowStatus,
                pingResultsOperStatus,
                pingResultsIpTargetAddressType,
                pingResultsIpTargetAddress,
                pingResultsMinRtt,
                pingResultsMaxRtt,
                pingResultsAverageRtt,
                pingResultsProbeResponses,
                pingResultsSentProbes,
                pingResultsRttSumOfSquares,
                pingProbeHistoryResponse,
                pingProbeHistoryStatus,
                pingProbeHistoryLastRC
              }
      STATUS  deprecated
      DESCRIPTION
          "The group of objects that constitute the remote ping
          capability."
       ::= { pingGroups 1 }

    pingTimeStampGroup OBJECT-GROUP

      OBJECTS {
                pingResultsLastGoodProbe,
                pingProbeHistoryTime
              }
      STATUS  deprecated
      DESCRIPTION
          "The group of DateAndTime objects."
       ::= { pingGroups 2 }

   END

4.2.  DISMAN-TRACEROUTE-MIB

   DISMAN-TRACEROUTE-MIB DEFINITIONS ::= BEGIN

   IMPORTS
       MODULE-IDENTITY, OBJECT-TYPE, Integer32,
       Gauge32, Unsigned32, mib-2,
       NOTIFICATION-TYPE,
       OBJECT-IDENTITY
           FROM SNMPv2-SMI                  -- RFC2578
       RowStatus, StorageType,
       TruthValue, DateAndTime
           FROM SNMPv2-TC                   -- RFC2579
       MODULE-COMPLIANCE, OBJECT-GROUP,
       NOTIFICATION-GROUP
           FROM SNMPv2-CONF                 -- RFC2580
       SnmpAdminString
           FROM SNMP-FRAMEWORK-MIB          -- RFC3411
       InterfaceIndexOrZero                 -- RFC2863
           FROM IF-MIB
       InetAddressType, InetAddress
           FROM INET-ADDRESS-MIB            -- RFC4001
       OperationResponseStatus
           FROM DISMAN-PING-MIB;            -- RFC4560

    traceRouteMIB MODULE-IDENTITY
       LAST-UPDATED "200606130000Z"         -- 13 June 2006
       ORGANIZATION "IETF Distributed Management Working Group"
       CONTACT-INFO
           "Juergen Quittek

           NEC Europe Ltd.
           Network Laboratories
           Kurfuersten-Anlage 36
           69115 Heidelberg
           Germany

           Phone: +49 6221 4342-115
           Email: quittek@netlab.nec.de"
       DESCRIPTION
           "The Traceroute MIB (DISMAN-TRACEROUTE-MIB) provides
           access to the traceroute capability at a remote host.

           Copyright (C) The Internet Society (2006). This version of
           this MIB module is part of RFC 4560; see the RFC itself for
           full legal notices."

        --  Revision history

        REVISION     "200606130000Z"         -- 13 June 2006
        DESCRIPTION
            "Updated version, published as RFC 4560.
                - Correctly considered IPv6 in DESCRIPTION clause of
                  object traceRouteCtlDataSize
                - Replaced references to RFC 2575 by RFC 3415
                - Replaced references to RFC 2571 by RFC 3411
                - Replaced references to RFC 2851 by RFC 4001
                - Clarified DESCRIPTION clause of object
                  traceRouteResultsLastGoodPath
                - Changed range of object traceRouteCtlInitialTtl
                  from (0..255) to (1..255)
                - Extended DESCRIPTION clause of traceRouteResultsTable
                  describing re-initialization of entries
                - Changed SYNTAX of traceRouteResultsTestAttempts and
                  traceRouteResultsTestSuccesses from Unsigned32 to
                  Gauge32
                - Changed status of traceRouteCompliance to deprecated
                - Added traceRouteFullCompliance and
                  traceRouteMinimumCompliance
                - Changed status of traceRouteGroup and
                  traceRouteTimeStampGroup to deprecated
                - Added traceRouteMinimumGroup,
                  traceRouteCtlRowStatusGroup, and
                  traceRouteHistoryGroup
                - Changed DEFVAL of object
                  traceRouteCtlTargetAddressType from { ipv4 }
                  to { unknown }
                - Changed DEFVAL of object traceRouteCtlDescr
                  from { '00'H } to { ''H }
                - Added DEFVAL for object traceRouteCtlTrapGeneration
                  of DEFVAL { { } }"
        REVISION     "200009210000Z"         -- 21 September 2000
        DESCRIPTION
            "Initial version, published as RFC 2925."

       ::= { mib-2 81 }

    -- Top level structure of the MIB

    traceRouteNotifications  OBJECT IDENTIFIER ::= { traceRouteMIB 0 }
    traceRouteObjects        OBJECT IDENTIFIER ::= { traceRouteMIB 1 }
    traceRouteConformance    OBJECT IDENTIFIER ::= { traceRouteMIB 2 }

    -- The registration node (point) for traceroute implementation types

    traceRouteImplementationTypeDomains OBJECT IDENTIFIER
    ::= { traceRouteMIB 3 }

    traceRouteUsingUdpProbes OBJECT-IDENTITY
       STATUS      current
       DESCRIPTION
           "Indicates that an implementation is using UDP probes to
           perform the traceroute operation."
       ::= { traceRouteImplementationTypeDomains 1 }

    -- Simple Object Definitions

    traceRouteMaxConcurrentRequests OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "requests"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The maximum number of concurrent active traceroute requests
          that are allowed within an agent implementation.  A value
          of 0 for this object implies that there is no limit for
          the number of concurrent active requests in effect.

          The limit applies only to new requests being activated.
          When a new value is set, the agent will continue processing
          all the requests already active, even if their number
          exceeds the limit just imposed."
       DEFVAL { 10 }
       ::= { traceRouteObjects 1 }

     -- Traceroute Control Table

    traceRouteCtlTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF TraceRouteCtlEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines the Remote Operations Traceroute Control Table for
           providing the capability of invoking traceroute from a remote
           host.  The results of traceroute operations can be stored in
           the traceRouteResultsTable, traceRouteProbeHistoryTable, and
           the traceRouteHopsTable."
      ::= { traceRouteObjects 2 }

    traceRouteCtlEntry OBJECT-TYPE
       SYNTAX      TraceRouteCtlEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION

           "Defines an entry in the traceRouteCtlTable.  The first
           index element, traceRouteCtlOwnerIndex, is of type
           SnmpAdminString, a textual convention that allows for
           use of the SNMPv3 View-Based Access Control Model
           (RFC 3415, VACM) and that allows a management
           application to identify its entries.  The second index,
           traceRouteCtlTestName (also an SnmpAdminString),
           enables the same management application to have
           multiple requests outstanding."
       INDEX {
               traceRouteCtlOwnerIndex,
               traceRouteCtlTestName
             }
       ::= { traceRouteCtlTable 1 }

    TraceRouteCtlEntry ::=
       SEQUENCE {
         traceRouteCtlOwnerIndex         SnmpAdminString,
         traceRouteCtlTestName           SnmpAdminString,
         traceRouteCtlTargetAddressType  InetAddressType,
         traceRouteCtlTargetAddress      InetAddress,
         traceRouteCtlByPassRouteTable   TruthValue,
         traceRouteCtlDataSize           Unsigned32,
         traceRouteCtlTimeOut            Unsigned32,
         traceRouteCtlProbesPerHop       Unsigned32,
         traceRouteCtlPort               Unsigned32,
         traceRouteCtlMaxTtl             Unsigned32,
         traceRouteCtlDSField            Unsigned32,
         traceRouteCtlSourceAddressType  InetAddressType,
         traceRouteCtlSourceAddress      InetAddress,
         traceRouteCtlIfIndex            InterfaceIndexOrZero,
         traceRouteCtlMiscOptions        SnmpAdminString,
         traceRouteCtlMaxFailures        Unsigned32,
         traceRouteCtlDontFragment       TruthValue,
         traceRouteCtlInitialTtl         Unsigned32,
         traceRouteCtlFrequency          Unsigned32,
         traceRouteCtlStorageType        StorageType,
         traceRouteCtlAdminStatus        INTEGER,
         traceRouteCtlDescr              SnmpAdminString,
         traceRouteCtlMaxRows            Unsigned32,
         traceRouteCtlTrapGeneration     BITS,
         traceRouteCtlCreateHopsEntries  TruthValue,
         traceRouteCtlType               OBJECT IDENTIFIER,
         traceRouteCtlRowStatus          RowStatus
       }

    traceRouteCtlOwnerIndex OBJECT-TYPE
       SYNTAX      SnmpAdminString (SIZE(0..32))

       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "To facilitate the provisioning of access control by a
          security administrator using the View-Based Access
          Control Model (RFC 3415, VACM) for tables in which
          multiple users may need to create or
          modify entries independently, the initial index is used as
          an 'owner index'.  Such an initial index has a syntax of
          SnmpAdminString and can thus be trivially mapped to a
          securityName or groupName defined in VACM, in
          accordance with a security policy.

          When used in conjunction with such a security policy,
          all entries in the table belonging to a particular user
          (or group) will have the same value for this initial
          index.  For a given user's entries in a particular
          table, the object identifiers for the information in
          these entries will have the same subidentifiers (except
          for the 'column' subidentifier) up to the end of the
          encoded owner index. To configure VACM to permit access
          to this portion of the table, one would create
          vacmViewTreeFamilyTable entries with the value of
          vacmViewTreeFamilySubtree including the owner index
          portion, and vacmViewTreeFamilyMask 'wildcarding' the
          column subidentifier.  More elaborate configurations
          are possible."
       ::= { traceRouteCtlEntry 1 }

     traceRouteCtlTestName OBJECT-TYPE
       SYNTAX      SnmpAdminString (SIZE(0..32))
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The name of a traceroute test.  This is locally unique,
           within the scope of a traceRouteCtlOwnerIndex."
       ::= { traceRouteCtlEntry 2 }

    traceRouteCtlTargetAddressType OBJECT-TYPE
       SYNTAX      InetAddressType
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the type of host address to be used on the
           traceroute request at the remote host."
       DEFVAL { unknown }
       ::= { traceRouteCtlEntry 3 }

    traceRouteCtlTargetAddress OBJECT-TYPE
       SYNTAX      InetAddress
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the host address used on the
           traceroute request at the remote host.  The
           host address type can be determined by
           examining the value of the corresponding
           traceRouteCtlTargetAddressType.

           A value for this object MUST be set prior to
           transitioning its corresponding traceRouteCtlEntry to
           active(1) via traceRouteCtlRowStatus."
       ::= { traceRouteCtlEntry 4 }

    traceRouteCtlByPassRouteTable OBJECT-TYPE
       SYNTAX TruthValue
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
          "The purpose of this object is to enable optional
          bypassing the route table.  If enabled, the remote
          host will bypass the normal routing tables and send
          directly to a host on an attached network.  If the
          host is not on a directly attached network, an
          error is returned.  This option can be used to perform
          the traceroute operation to a local host through an
          interface that has no route defined (e.g., after the
          interface was dropped by the routing daemon at the host)."
       DEFVAL { false }
       ::= { traceRouteCtlEntry 5 }

    traceRouteCtlDataSize OBJECT-TYPE
       SYNTAX      Unsigned32 (0..65507)
       UNITS       "octets"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the size of the data portion of a traceroute
           request, in octets.  If the RECOMMENDED traceroute method
           (UDP datagrams as probes) is used, then the value
           contained in this object MUST be applied.  If another
           traceroute method is used for which the specified size
           is not appropriate, then the implementation SHOULD use
           whatever size (appropriate to the method) is closest to
           the specified size.

           The maximum value for this object was computed by
           subtracting the smallest possible IP header size of
           20 octets (IPv4 header with no options) and the UDP
           header size of 8 octets from the maximum IP packet size.
           An IP packet has a maximum size of 65535 octets
           (excluding IPv6 Jumbograms)."
       DEFVAL { 0 }
       ::= { traceRouteCtlEntry 6 }

    traceRouteCtlTimeOut OBJECT-TYPE
       SYNTAX      Unsigned32 (1..60)
       UNITS       "seconds"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the time-out value, in seconds, for
           a traceroute request."
       DEFVAL { 3 }
       ::= { traceRouteCtlEntry 7 }

    traceRouteCtlProbesPerHop OBJECT-TYPE
       SYNTAX      Unsigned32 (1..10)
       UNITS       "probes"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the number of times to reissue a traceroute
           request with the same time-to-live (TTL) value."
       DEFVAL { 3 }
       ::= { traceRouteCtlEntry 8 }

    traceRouteCtlPort OBJECT-TYPE
       SYNTAX      Unsigned32 (1..65535)
       UNITS       "UDP Port"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the (initial) UDP port to send the traceroute
           request to.  A port needs to be specified that is not in
           use at the destination (target) host.  The default
           value for this object is the IANA assigned port,
           33434, for the traceroute function."
       DEFVAL { 33434 }
       ::= { traceRouteCtlEntry 9 }

    traceRouteCtlMaxTtl OBJECT-TYPE
       SYNTAX      Unsigned32 (1..255)
       UNITS       "time-to-live value"

       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the maximum time-to-live value."
       DEFVAL { 30 }
       ::= { traceRouteCtlEntry 10 }

    traceRouteCtlDSField OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       MAX-ACCESS  read-create
       STATUS      current

       DESCRIPTION
           "Specifies the value to store in the Type of Service
           (TOS) octet in the IPv4 header or in the Traffic
           Class octet in the IPv6 header, respectively, of the
           IP packet used to encapsulate the traceroute probe.

           The octet to be set in the IP header contains the
           Differentiated Services (DS) Field in the six most
           significant bits.

           This option can be used to determine what effect an
           explicit DS Field setting has on a traceroute response.
           Not all values are legal or meaningful.  A value of 0
           means that the function represented by this option is
           not supported.  DS Field usage is often not supported
           by IP implementations, and not all values are supported.
           Refer to RFC 2474 and RFC 3260 for guidance on usage of
           this field."
       REFERENCE
           "Refer to RFC 1812 for the definition of the IPv4 TOS
           octet and to RFC 2460 for the definition of the IPv6
           Traffic Class octet.  Refer to RFC 2474 and RFC 3260
           for the definition of the Differentiated Services Field."
       DEFVAL { 0 }
       ::= { traceRouteCtlEntry 11 }

    traceRouteCtlSourceAddressType OBJECT-TYPE
       SYNTAX      InetAddressType
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the type of the source address,
           traceRouteCtlSourceAddress, to be used at a remote host
           when a traceroute operation is performed."
       DEFVAL { unknown }
       ::= { traceRouteCtlEntry 12 }

    traceRouteCtlSourceAddress OBJECT-TYPE
       SYNTAX      InetAddress
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Use the specified IP address (which must be given as an
           IP number, not a hostname) as the source address in
           outgoing probe packets.  On hosts with more than one IP
           address, this option can be used to select the address
           to be used.  If the IP address is not one of this
           machine's interface addresses, an error is returned, and
           nothing is sent.  A zero-length octet string value for
           this object disables source address specification.
           The address type (InetAddressType) that relates to
           this object is specified by the corresponding value
           of traceRouteCtlSourceAddressType."
       DEFVAL { ''H }
       ::= { traceRouteCtlEntry 13 }

    traceRouteCtlIfIndex OBJECT-TYPE
       SYNTAX      InterfaceIndexOrZero
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Setting this object to an interface's ifIndex prior
           to starting a remote traceroute operation directs
           the traceroute probes to be transmitted over the
           specified interface.  A value of zero for this object
           implies that this option is not enabled."
       DEFVAL { 0 }
       ::= { traceRouteCtlEntry 14 }

    traceRouteCtlMiscOptions OBJECT-TYPE
       SYNTAX      SnmpAdminString
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Enables an application to specify implementation-dependent
           options."
       DEFVAL { ''H }
       ::= { traceRouteCtlEntry 15 }

    traceRouteCtlMaxFailures OBJECT-TYPE
       SYNTAX      Unsigned32 (0..255)
       UNITS       "timeouts"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION

           "The value of this object indicates the maximum number
           of consecutive timeouts allowed before a remote traceroute
           request is terminated.  A value of either 255 (maximum
           hop count/possible TTL value) or 0 indicates that the
           function of terminating a remote traceroute request when a
           specific number of consecutive timeouts are detected is
           disabled."
       DEFVAL { 5 }
       ::= { traceRouteCtlEntry 16 }

    traceRouteCtlDontFragment OBJECT-TYPE
       SYNTAX         TruthValue
       MAX-ACCESS     read-create
       STATUS         current
       DESCRIPTION
           "This object enables setting of the don't fragment flag (DF)
           in the IP header for a probe.  Use of this object enables
           a manual PATH MTU test is performed."
       DEFVAL  { false }
       ::= { traceRouteCtlEntry 17 }

    traceRouteCtlInitialTtl OBJECT-TYPE
       SYNTAX         Unsigned32 (1..255)
       MAX-ACCESS     read-create
       STATUS         current
       DESCRIPTION
           "The value of this object specifies the initial TTL value to
           use.  This enables bypassing the initial (often well known)
           portion of a path."
       DEFVAL { 1 }
       ::= { traceRouteCtlEntry 18 }

    traceRouteCtlFrequency  OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "seconds"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The number of seconds to wait before repeating a
           traceroute test, as defined by the value of the
           various objects in the corresponding row.

           After a single test is completed the number of seconds
           as defined by the value of traceRouteCtlFrequency MUST
           elapse before the next traceroute test is started.

           A value of 0 for this object implies that the test
           as defined by the corresponding entry will not be

           repeated."
       DEFVAL { 0 }
       ::= { traceRouteCtlEntry 19 }

    traceRouteCtlStorageType OBJECT-TYPE
       SYNTAX      StorageType
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The storage type for this conceptual row.
           Conceptual rows having the value 'permanent' need not
           allow write-access to any columnar objects in the row."
       DEFVAL { nonVolatile }
       ::= { traceRouteCtlEntry 20 }

    traceRouteCtlAdminStatus OBJECT-TYPE
       SYNTAX      INTEGER {

                             enabled(1), -- operation should be started
                             disabled(2) -- operation should be stopped
                           }
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Reflects the desired state that an traceRouteCtlEntry
           should be in:

              enabled(1)  - Attempt to activate the test as defined by
                            this traceRouteCtlEntry.
              disabled(2) - Deactivate the test as defined by this
                            traceRouteCtlEntry.

           Refer to the corresponding traceRouteResultsOperStatus to
           determine the operational state of the test defined by
           this entry."
        DEFVAL { disabled }
       ::= { traceRouteCtlEntry 21 }

    traceRouteCtlDescr OBJECT-TYPE
       SYNTAX      SnmpAdminString
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The purpose of this object is to provide a
           descriptive name of the remote traceroute
           test."
       DEFVAL { ''H }
       ::= { traceRouteCtlEntry 22 }

    traceRouteCtlMaxRows OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "rows"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The maximum number of corresponding entries allowed
           in the traceRouteProbeHistoryTable.  An implementation
           of this MIB will remove the oldest corresponding entry
           in the traceRouteProbeHistoryTable to allow the
           addition of an new entry once the number of
           corresponding rows in the traceRouteProbeHistoryTable
           reaches this value.

           Old entries are not removed when a new test is
           started.  Entries are added to the
           traceRouteProbeHistoryTable until traceRouteCtlMaxRows
           is reached before entries begin to be removed.
           A value of 0 for this object disables creation of
           traceRouteProbeHistoryTable entries."
       DEFVAL      { 50 }
       ::= { traceRouteCtlEntry 23 }

    traceRouteCtlTrapGeneration OBJECT-TYPE
       SYNTAX      BITS {
                     pathChange(0),
                     testFailure(1),
                     testCompletion(2)
                   }
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The value of this object determines when and whether to
           generate a notification for this entry:

           pathChange(0)     - Generate a traceRoutePathChange
               notification when the current path varies from a
               previously determined path.
           testFailure(1)    - Generate a traceRouteTestFailed
               notification when the full path to a target
               can't be determined.
           testCompletion(2) - Generate a traceRouteTestCompleted
               notification when the path to a target has been
               determined.

           The value of this object defaults to an empty set,
           indicating that none of the above options has been
           selected."

       DEFVAL { { } }
       ::= { traceRouteCtlEntry 24 }

    traceRouteCtlCreateHopsEntries OBJECT-TYPE
       SYNTAX      TruthValue
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The current path for a traceroute test is kept in the
           traceRouteHopsTable on a per-hop basis when the value of
           this object is true(1)."
       DEFVAL { false }
       ::= { traceRouteCtlEntry 25 }

    traceRouteCtlType OBJECT-TYPE
       SYNTAX      OBJECT IDENTIFIER
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "The value of this object is used either to report or to
           select the implementation method to be used for
           performing a traceroute operation.  The value of this
           object may be selected from
           traceRouteImplementationTypeDomains.

           Additional implementation types should be allocated as
           required by implementers of the DISMAN-TRACEROUTE-MIB
           under their enterprise specific registration point,
           not beneath traceRouteImplementationTypeDomains."
       DEFVAL { traceRouteUsingUdpProbes }
       ::= { traceRouteCtlEntry 26 }

    traceRouteCtlRowStatus OBJECT-TYPE
       SYNTAX      RowStatus
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "This object allows entries to be created and deleted
           in the traceRouteCtlTable.  Deletion of an entry in
           this table results in a deletion of all corresponding (same
           traceRouteCtlOwnerIndex and traceRouteCtlTestName
           index values) traceRouteResultsTable,
           traceRouteProbeHistoryTable, and traceRouteHopsTable
           entries.

           A value MUST be specified for traceRouteCtlTargetAddress
           prior to acceptance of a transition to active(1) state.

           When a value for pingCtlTargetAddress is set,
           the value of object pingCtlRowStatus changes
           from notReady(3) to notInService(2).

           Activation of a remote traceroute operation is
           controlled via traceRouteCtlAdminStatus, and not
           by transitioning of this object's value to active(1).

           Transitions in and out of active(1) state are not
           allowed while an entry's traceRouteResultsOperStatus
           is active(1), with the exception that deletion of
           an entry in this table by setting its RowStatus
           object to destroy(6) will stop an active
           traceroute operation.

           The operational state of an traceroute operation
           can be determined by examination of the corresponding
           traceRouteResultsOperStatus object."
       REFERENCE
           "See definition of RowStatus in RFC 2579, 'Textual
           Conventions for SMIv2.'"
       ::= { traceRouteCtlEntry 27 }

    -- Traceroute Results Table

    traceRouteResultsTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF TraceRouteResultsEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines the Remote Operations Traceroute Results Table for
           keeping track of the status of a traceRouteCtlEntry.

           An entry is added to the traceRouteResultsTable when an
           traceRouteCtlEntry is started by successful transition
           of its traceRouteCtlAdminStatus object to enabled(1).

           If the object traceRouteCtlAdminStatus already has the value
           enabled(1), and if the corresponding
           traceRouteResultsOperStatus object has the value
           completed(3), then successfully writing enabled(1) to the
           object traceRouteCtlAdminStatus re-initializes the already
           existing entry in the traceRouteResultsTable.  The values of
           objects in the re-initialized entry are the same as
           the values of objects in a new entry would be.

           An entry is removed from the traceRouteResultsTable when

           its corresponding traceRouteCtlEntry is deleted."
      ::= { traceRouteObjects 3 }

    traceRouteResultsEntry OBJECT-TYPE
       SYNTAX      TraceRouteResultsEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines an entry in the traceRouteResultsTable.  The
           traceRouteResultsTable has the same indexing as the
           traceRouteCtlTable so that a traceRouteResultsEntry
           corresponds to the traceRouteCtlEntry that caused it to
           be created."
       INDEX {
               traceRouteCtlOwnerIndex,
               traceRouteCtlTestName
             }
       ::= { traceRouteResultsTable 1 }

    TraceRouteResultsEntry ::=
       SEQUENCE {
         traceRouteResultsOperStatus       INTEGER,
         traceRouteResultsCurHopCount      Gauge32,
         traceRouteResultsCurProbeCount    Gauge32,
         traceRouteResultsIpTgtAddrType    InetAddressType,
         traceRouteResultsIpTgtAddr        InetAddress,
         traceRouteResultsTestAttempts     Gauge32,
         traceRouteResultsTestSuccesses    Gauge32,
         traceRouteResultsLastGoodPath     DateAndTime
       }

    traceRouteResultsOperStatus OBJECT-TYPE
       SYNTAX      INTEGER {
                             enabled(1),  -- test is in progress
                             disabled(2), -- test has stopped
                             completed(3) -- test is completed
                           }
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Reflects the operational state of an traceRouteCtlEntry:

              enabled(1)   - Test is active.
              disabled(2)  - Test has stopped.
              completed(3) - Test is completed."
       ::= { traceRouteResultsEntry 1 }

    traceRouteResultsCurHopCount OBJECT-TYPE

       SYNTAX      Gauge32
       UNITS       "hops"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Reflects the current TTL value (from 1 to
           255) for a remote traceroute operation.
           Maximum TTL value is determined by
           traceRouteCtlMaxTtl."
       ::= { traceRouteResultsEntry 2 }

    traceRouteResultsCurProbeCount OBJECT-TYPE
       SYNTAX      Gauge32
       UNITS       "probes"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Reflects the current probe count (1..10) for
           a remote traceroute operation.  The maximum
           probe count is determined by
           traceRouteCtlProbesPerHop."
       ::= { traceRouteResultsEntry 3 }

    traceRouteResultsIpTgtAddrType OBJECT-TYPE
       SYNTAX      InetAddressType

       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "This object indicates the type of address stored
           in the corresponding traceRouteResultsIpTgtAddr
           object."
       ::= { traceRouteResultsEntry 4 }

    traceRouteResultsIpTgtAddr OBJECT-TYPE
       SYNTAX      InetAddress
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "This object reports the IP address associated
           with a traceRouteCtlTargetAddress value when the
           destination address is specified as a DNS name.
           The value of this object should be a zero-length
           octet string when a DNS name is not specified or
           when a specified DNS name fails to resolve."
       ::= { traceRouteResultsEntry 5 }

    traceRouteResultsTestAttempts OBJECT-TYPE

       SYNTAX      Gauge32
       UNITS       "tests"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The current number of attempts to determine a path
           to a target.  The value of this object MUST be started
           at 0."
       ::= { traceRouteResultsEntry 6 }

    traceRouteResultsTestSuccesses OBJECT-TYPE
       SYNTAX      Gauge32
       UNITS       "tests"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The current number of attempts to determine a path
           to a target that have succeeded.  The value of this
           object MUST be reported as 0 when no attempts have
           succeeded."
       ::= { traceRouteResultsEntry 7 }

    traceRouteResultsLastGoodPath OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The date and time when the last complete path
           was determined.  A path is complete if responses
           were received or timeout occurred for each hop on
           the path; i.e., for each TTL value from the value
           of the corresponding traceRouteCtlInitialTtl object
           up to the end of the path or (if no reply from the
           target IP address was received) up to the value of
           the corresponding traceRouteCtlMaxTtl object."
       ::= { traceRouteResultsEntry 8 }

    -- Trace Route Probe History Table

    traceRouteProbeHistoryTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF TraceRouteProbeHistoryEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines the Remote Operations Traceroute Results Table
           for storing the results of a traceroute operation.

           An implementation of this MIB will remove the oldest

           entry in the traceRouteProbeHistoryTable of the
           corresponding entry in the traceRouteCtlTable to allow
           the addition of a new entry once the number of rows in
           the traceRouteProbeHistoryTable reaches the value specified
           by traceRouteCtlMaxRows for the corresponding entry in the
           traceRouteCtlTable."
      ::= { traceRouteObjects 4 }

    traceRouteProbeHistoryEntry OBJECT-TYPE
       SYNTAX      TraceRouteProbeHistoryEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines a table for storing the results of a traceroute
           operation.  Entries in this table are limited by
           the value of the corresponding traceRouteCtlMaxRows
           object.

           The first two index elements identify the
           traceRouteCtlEntry that a traceRouteProbeHistoryEntry
           belongs to.  The third index element selects a single
           traceroute operation result.  The fourth and fifth indexes
           select the hop and the probe for a particular
           traceroute operation."
       INDEX {
                traceRouteCtlOwnerIndex,
                traceRouteCtlTestName,
                traceRouteProbeHistoryIndex,
                traceRouteProbeHistoryHopIndex,
                traceRouteProbeHistoryProbeIndex

             }
       ::= { traceRouteProbeHistoryTable 1 }

    TraceRouteProbeHistoryEntry ::=
       SEQUENCE {
         traceRouteProbeHistoryIndex         Unsigned32,
         traceRouteProbeHistoryHopIndex      Unsigned32,
         traceRouteProbeHistoryProbeIndex    Unsigned32,
         traceRouteProbeHistoryHAddrType     InetAddressType,
         traceRouteProbeHistoryHAddr         InetAddress,
         traceRouteProbeHistoryResponse      Unsigned32,
         traceRouteProbeHistoryStatus        OperationResponseStatus,
         traceRouteProbeHistoryLastRC        Integer32,
         traceRouteProbeHistoryTime          DateAndTime
       }

    traceRouteProbeHistoryIndex OBJECT-TYPE

       SYNTAX      Unsigned32 (1..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "An entry in this table is created when the result of
           a traceroute probe is determined.  The initial 2 instance
           identifier index values identify the traceRouteCtlEntry
           that a probe result (traceRouteProbeHistoryEntry) belongs
           to.  An entry is removed from this table when
           its corresponding traceRouteCtlEntry is deleted.

           An implementation MUST start assigning
           traceRouteProbeHistoryIndex values at 1 and wrap after
           exceeding the maximum possible value, as defined by the
           limit of this object ('ffffffff'h)."
       ::= { traceRouteProbeHistoryEntry 1 }

    traceRouteProbeHistoryHopIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (1..255)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "Indicates which hop in a traceroute path the probe's
          results are for.  The value of this object is initially
          determined by the value of traceRouteCtlInitialTtl."
       ::= { traceRouteProbeHistoryEntry 2 }

    traceRouteProbeHistoryProbeIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (1..10)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "Indicates the index of a probe for a particular
          hop in a traceroute path.  The number of probes per
          hop is determined by the value of the corresponding
          traceRouteCtlProbesPerHop object."
       ::= { traceRouteProbeHistoryEntry 3 }

    traceRouteProbeHistoryHAddrType OBJECT-TYPE
       SYNTAX      InetAddressType
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "This objects indicates the type of address stored
           in the corresponding traceRouteProbeHistoryHAddr
           object."
       ::= { traceRouteProbeHistoryEntry 4 }

    traceRouteProbeHistoryHAddr OBJECT-TYPE
       SYNTAX      InetAddress
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
          "The address of a hop in a traceroute path.  This object
          is not allowed to be a DNS name.  The value of the
          corresponding object, traceRouteProbeHistoryHAddrType,
          indicates this object's IP address type."
       ::= { traceRouteProbeHistoryEntry 5 }

    traceRouteProbeHistoryResponse OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "milliseconds"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The amount of time measured in milliseconds from when
           a probe was sent to when its response was received or
           when it timed out.  The value of this object is reported
           as 0 when it is not possible to transmit a probe."
       ::= { traceRouteProbeHistoryEntry 6 }

    traceRouteProbeHistoryStatus OBJECT-TYPE
       SYNTAX      OperationResponseStatus
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The result of a traceroute operation made by a remote
           host for a particular probe."
       ::= { traceRouteProbeHistoryEntry 7 }

    traceRouteProbeHistoryLastRC OBJECT-TYPE
       SYNTAX      Integer32
       MAX-ACCESS  read-only

       STATUS      current
       DESCRIPTION
           "The last implementation-method-specific reply code received.

           Traceroute is usually implemented by transmitting a series of
           probe packets with increasing time-to-live values.  A probe
           packet is a UDP datagram encapsulated into an IP packet.
           Each hop in a path to the target (destination) host rejects
           the probe packets (probe's TTL too small, ICMP reply) until
           either the maximum TTL is exceeded or the target host is
           received."
       ::= { traceRouteProbeHistoryEntry 8 }

    traceRouteProbeHistoryTime OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Timestamp for when this probe's results were determined."
       ::= { traceRouteProbeHistoryEntry 9 }

    -- Traceroute Hop Results Table

    traceRouteHopsTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF TraceRouteHopsEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines the Remote Operations Traceroute Hop Table for
           keeping track of the results of traceroute tests on a
           per-hop basis."
       ::= { traceRouteObjects 5 }

    traceRouteHopsEntry OBJECT-TYPE
       SYNTAX      TraceRouteHopsEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines an entry in the traceRouteHopsTable.
           The first two index elements identify the
           traceRouteCtlEntry that a traceRouteHopsEntry
           belongs to.  The third index element,
           traceRouteHopsHopIndex, selects a
           hop in a traceroute path."
       INDEX {
               traceRouteCtlOwnerIndex,
               traceRouteCtlTestName,
               traceRouteHopsHopIndex
             }

       ::= { traceRouteHopsTable 1 }

    TraceRouteHopsEntry ::=
       SEQUENCE {
           traceRouteHopsHopIndex         Unsigned32,
           traceRouteHopsIpTgtAddressType InetAddressType,
           traceRouteHopsIpTgtAddress     InetAddress,
           traceRouteHopsMinRtt           Unsigned32,
           traceRouteHopsMaxRtt           Unsigned32,
           traceRouteHopsAverageRtt       Unsigned32,
           traceRouteHopsRttSumOfSquares  Unsigned32,

           traceRouteHopsSentProbes       Unsigned32,
           traceRouteHopsProbeResponses   Unsigned32,
           traceRouteHopsLastGoodProbe    DateAndTime
         }

    traceRouteHopsHopIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (1..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Specifies the hop index for a traceroute hop.  Values
           for this object with respect to the same
           traceRouteCtlOwnerIndex and traceRouteCtlTestName
           MUST start at 1 and be given increasing values for
           subsequent hops.  The value of traceRouteHopsHopIndex is not
           necessarily the number of the hop on the traced path.

           The traceRouteHopsTable keeps the current traceroute
           path per traceRouteCtlEntry if enabled by
           setting the corresponding traceRouteCtlCreateHopsEntries
           to true(1).

           All hops (traceRouteHopsTable entries) in a traceroute
           path MUST be updated at the same time when a traceroute
           operation is completed.  Care needs to be applied when a path
           either changes or can't be determined.  The initial portion
           of the path, up to the first hop change, MUST retain the
           same traceRouteHopsHopIndex values.  The remaining portion
           of the path SHOULD be assigned new traceRouteHopsHopIndex
           values."
       ::= { traceRouteHopsEntry 1 }

    traceRouteHopsIpTgtAddressType OBJECT-TYPE
       SYNTAX      InetAddressType
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "This object indicates the type of address stored
           in the corresponding traceRouteHopsIpTgtAddress
           object."
       ::= { traceRouteHopsEntry 2 }

    traceRouteHopsIpTgtAddress OBJECT-TYPE
       SYNTAX      InetAddress
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "This object reports the IP address associated with

           the hop.  A value for this object should be reported
           as a numeric IP address, not as a DNS name.

           The address type (InetAddressType) that relates to
           this object is specified by the corresponding value
           of pingCtlSourceAddressType."
       ::= { traceRouteHopsEntry 3 }

    traceRouteHopsMinRtt OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The minimum traceroute round-trip-time (RTT) received for
           this hop.  A value of 0 for this object implies that no
           RTT has been received."
       ::= { traceRouteHopsEntry 4 }

    traceRouteHopsMaxRtt OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The maximum traceroute round-trip-time (RTT) received for
           this hop.  A value of 0 for this object implies that no
           RTT has been received."
       ::= { traceRouteHopsEntry 5 }

    traceRouteHopsAverageRtt OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The current average traceroute round-trip-time (RTT) for
           this hop."
       ::= { traceRouteHopsEntry 6 }

    traceRouteHopsRttSumOfSquares OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "This object contains the sum of the squares of all
           round-trip-times received for this hop.  Its purpose is
           to enable standard deviation calculation."
       ::= { traceRouteHopsEntry 7 }

    traceRouteHopsSentProbes OBJECT-TYPE

       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The value of this object reflects the number of probes sent
           for this hop during this traceroute test.  The value of this
           object should start at 0."
       ::= { traceRouteHopsEntry 8 }

    traceRouteHopsProbeResponses OBJECT-TYPE
       SYNTAX      Unsigned32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Number of responses received for this hop during this
           traceroute test.  This value of this object should start
           at 0."
       ::= { traceRouteHopsEntry 9 }

    traceRouteHopsLastGoodProbe OBJECT-TYPE
       SYNTAX      DateAndTime
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Date and time at which the last response was received for a
            probe for this hop during this traceroute test."
       ::= { traceRouteHopsEntry 10 }

    -- Notification Definition section

    traceRoutePathChange NOTIFICATION-TYPE
         OBJECTS {
           traceRouteCtlTargetAddressType,
           traceRouteCtlTargetAddress,
           traceRouteResultsIpTgtAddrType,
           traceRouteResultsIpTgtAddr
         }
         STATUS  current
         DESCRIPTION
             "The path to a target has changed."
         ::= { traceRouteNotifications 1 }

    traceRouteTestFailed NOTIFICATION-TYPE
         OBJECTS {
           traceRouteCtlTargetAddressType,
           traceRouteCtlTargetAddress,
           traceRouteResultsIpTgtAddrType,
           traceRouteResultsIpTgtAddr

         }
         STATUS  current
         DESCRIPTION
             "Could not determine the path to a target."
         ::= { traceRouteNotifications 2 }

    traceRouteTestCompleted NOTIFICATION-TYPE
         OBJECTS {
           traceRouteCtlTargetAddressType,
           traceRouteCtlTargetAddress,
           traceRouteResultsIpTgtAddrType,
           traceRouteResultsIpTgtAddr
         }
         STATUS  current
         DESCRIPTION
             "The path to a target has just been determined."
         ::= { traceRouteNotifications 3 }

    -- Conformance information
    -- Compliance statements

    traceRouteCompliances OBJECT IDENTIFIER
         ::= { traceRouteConformance 1 }
    traceRouteGroups      OBJECT IDENTIFIER
         ::= { traceRouteConformance 2 }

    -- Compliance statements

    traceRouteFullCompliance MODULE-COMPLIANCE
       STATUS  current
       DESCRIPTION
               "The compliance statement for SNMP entities that
               fully implement the DISMAN-TRACEROUTE-MIB."
       MODULE  -- this module
           MANDATORY-GROUPS {
                               traceRouteMinimumGroup,
                               traceRouteCtlRowStatusGroup,
                               traceRouteHistoryGroup
                            }

           GROUP traceRouteHopsTableGroup
           DESCRIPTION
               "This group lists the objects that make up a
               traceRouteHopsEntry.  Support of the traceRouteHopsTable
               is optional."

           GROUP traceRouteNotificationsGroup
           DESCRIPTION

               "This group defines a collection of optional
               notifications."

           OBJECT traceRouteMaxConcurrentRequests
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support SET
               operations to this object."

           OBJECT traceRouteCtlByPassRouteTable
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access to this object is not required by
               implementations that are not capable of its
               implementation.  The function represented by this
               object is implementable if the setsockopt
               SOL_SOCKET SO_DONTROUTE option is supported."

           OBJECT traceRouteCtlDSField
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is
               not supported, return a 0 as the value of this object.
               A value of 0 implies that the function represented by
               this option is not supported."

           OBJECT traceRouteCtlSourceAddressType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access to this object is not required by
               implementations that are not capable of binding the
               send socket with a source address.  An implementation
               is only required to support IPv4 and IPv6 addresses."

           OBJECT traceRouteCtlSourceAddress
           SYNTAX  InetAddress (SIZE(0|4|16))
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access to this object is not required by
               implementations that are not capable of binding the
               send socket with a source address.  An implementation
               is only required to support IPv4 and IPv6 addresses."

           OBJECT traceRouteCtlIfIndex
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is

               not supported, return a 0 as the value of this object.
               A value of 0 implies that the function represented by
               this option is not supported."

           OBJECT traceRouteCtlMiscOptions
           MIN-ACCESS  read-only
           DESCRIPTION
               "Support of this object is optional.  If not
               supporting, do not allow write access and return a
               zero-length octet string as the value of the object."

           OBJECT traceRouteCtlStorageType
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  It is also allowed
               that implementations support only the volatile(2)
               StorageType enumeration."

           OBJECT traceRouteCtlType
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  In addition, the only
               value that is RECOMMENDED to be supported by an
               implementation is traceRouteUsingUdpProbes."

           OBJECT traceRouteResultsIpTgtAddrType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteResultsIpTgtAddr
           SYNTAX  InetAddress (SIZE(0|4|16))
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteResultsLastGoodPath
           DESCRIPTION
               "If the traceRouteHopsTableGroup is implemented, then
               this object is mandatory for implementations that have
               access to a system clock and that are capable of setting
               the values for DateAndTime objects.  It is RECOMMENDED
               that when this object is not supported its values
               be reported as '0000000000000000'H."

           OBJECT traceRouteProbeHistoryHAddrType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }

           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteProbeHistoryHAddr
           SYNTAX  InetAddress (SIZE(0|4|16))
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteProbeHistoryTime
           DESCRIPTION
               "This object is mandatory for implementations that have
               access to a system clock and that are capable of setting
               the values for DateAndTime objects.  It is RECOMMENDED
               that when this object is not supported its values
               be reported as '0000000000000000'H."

           OBJECT traceRouteHopsIpTgtAddressType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteHopsIpTgtAddress
           SYNTAX  InetAddress (SIZE(0|4|16))
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteHopsLastGoodProbe
           DESCRIPTION
               "This object is mandatory for implementations that have
               access to a system clock and that are capable of setting
               the values for DateAndTime objects.  It is RECOMMENDED
               that when this object is not supported its values
               be reported as '0000000000000000'H."

       ::= { traceRouteCompliances 2 }

    traceRouteMinimumCompliance MODULE-COMPLIANCE
       STATUS  current
       DESCRIPTION
               "The minimum compliance statement for SNMP entities
               which implement the minimal subset of the
               DISMAN-TRACEROUTE-MIB.  Implementors might choose this
               subset for small devices with limited resources."
       MODULE  -- this module

           MANDATORY-GROUPS { traceRouteMinimumGroup }

           GROUP traceRouteCtlRowStatusGroup
           DESCRIPTION
               "A compliant implementation does not have to implement
               the traceRouteCtlRowStatusGroup."

           GROUP traceRouteHistoryGroup
           DESCRIPTION
               "A compliant implementation does not have to implement
               the traceRouteHistoryGroup."

           GROUP traceRouteHopsTableGroup
           DESCRIPTION
               "This group lists the objects that make up a
               traceRouteHopsEntry.  Support of the traceRouteHopsTable
               is optional."

           GROUP traceRouteNotificationsGroup
           DESCRIPTION
               "This group defines a collection of optional
               notifications."

           OBJECT traceRouteMaxConcurrentRequests
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support SET
               operations to this object."

           OBJECT traceRouteCtlByPassRouteTable
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is
               not supported, return a false(2) as the value of this
               object.  A value of false(2) means that the function
               represented by this option is not supported."

           OBJECT traceRouteCtlDSField
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is
               not supported, return a 0 as the value of this object.
               A value of 0 implies that the function represented by
               this option is not supported."

           OBJECT traceRouteCtlSourceAddressType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           MIN-ACCESS  read-only

           DESCRIPTION
               "Write access to this object is not required by
               implementations that are not capable of binding the
               send socket with a source address.  An implementation
               is only required to support IPv4 and IPv6 addresses."

           OBJECT traceRouteCtlSourceAddress
           SYNTAX  InetAddress (SIZE(0|4|16))
           MIN-ACCESS  read-only

           DESCRIPTION
               "Write access to this object is not required by
               implementations that are not capable of binding the
               send socket with a source address.  An implementation
               is only required to support IPv4 and IPv6 addresses."

           OBJECT traceRouteCtlIfIndex
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is
               not supported, return a 0 as the value of this object.
               A value of 0 implies that the function represented by
               this option is not supported."

           OBJECT traceRouteCtlMiscOptions
           MIN-ACCESS  read-only
           DESCRIPTION
               "Support of this object is optional.  If not
               supporting, do not allow write access, and return a
               zero-length octet string as the value of the object."

           OBJECT traceRouteCtlDontFragment
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is
               not supported, return a false(2) as the value of this
               object.  A value of false(2) means that the function
               represented by this option is not supported."

           OBJECT traceRouteCtlInitialTtl
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is
               not supported, return a 1 as the value of this object."

           OBJECT traceRouteCtlFrequency
           MIN-ACCESS  read-only
           DESCRIPTION

               "Write access is not required.  If write access is
               not supported, return a 0 as the value of this object.
               A value of 0 implies that the function represented by
               this option is not supported."

           OBJECT traceRouteCtlStorageType
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  It is also allowed
               that implementations support only the volatile(2)
               StorageType enumeration."

           OBJECT traceRouteCtlDescr
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support set
               operations to this object."

           OBJECT traceRouteCtlMaxRows
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If the
               traceRouteHistoryGroup is not implemented, then write
               access to this object MUST be disabled, and the object
               MUST return a value of 0 when retrieved."

           OBJECT traceRouteCtlTrapGeneration
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If the
               traceRouteNotificationsGroup is not implemented, then
               write access to this object MUST be disabled, and the
               object MUST return a value with no bit set when
               retrieved.  No bit set indicates that no notification
               is generated."

           OBJECT traceRouteCtlCreateHopsEntries
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If the
               traceRouteHopsTableGroup is not implemented, then
               write access to this object MUST be disabled, and the
               object MUST return a value of false(2) when retrieved."

           OBJECT traceRouteCtlType
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  In addition, the only

               value that is RECOMMENDED to be supported by an
               implementation is traceRouteUsingUdpProbes."

           OBJECT traceRouteResultsIpTgtAddrType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteResultsIpTgtAddr
           SYNTAX  InetAddress (SIZE(0|4|16))
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteResultsLastGoodPath
           DESCRIPTION
               "This object is mandatory for implementations that have
               access to a system clock and that are capable of setting
               the values for DateAndTime objects.  It is RECOMMENDED
               that when this object is not supported its values
               be reported as '0000000000000000'H."

           OBJECT traceRouteProbeHistoryHAddrType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteProbeHistoryHAddr
           SYNTAX  InetAddress (SIZE(0|4|16))
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteProbeHistoryTime
           DESCRIPTION
               "If the traceRouteHistoryGroup is implemented, then
               this object is mandatory for implementations that have
               access to a system clock and that are capable of setting
               the values for DateAndTime objects.  It is RECOMMENDED
               that when this object is not supported its values
               be reported as '0000000000000000'H."

           OBJECT traceRouteHopsIpTgtAddressType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           DESCRIPTION
               "An implementation should only support IPv4 and

               globally unique IPv6 address values for this object."

           OBJECT traceRouteHopsIpTgtAddress
           SYNTAX  InetAddress (SIZE(0|4|16))
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteHopsLastGoodProbe
           DESCRIPTION
               "If the traceRouteHopsTableGroup is implemented, then
               this object is mandatory for implementations that have
               access to a system clock and that are capable of setting
               the values for DateAndTime objects.  It is RECOMMENDED
               that when this object is not supported its values
               be reported as '0000000000000000'H."

       ::= { traceRouteCompliances 3 }

    traceRouteCompliance MODULE-COMPLIANCE
       STATUS  deprecated
       DESCRIPTION
               "The compliance statement for the DISMAN-TRACEROUTE-MIB.
               This compliance statement has been deprecated because
               the traceRouteGroup and the traceRouteTimeStampGroup
               have been split and deprecated. The
               traceRouteFullCompliance is semantically identical to the
               deprecated traceRouteCompliance statement."
       MODULE  -- this module
           MANDATORY-GROUPS {
                               traceRouteGroup
                             }
           GROUP traceRouteTimeStampGroup
           DESCRIPTION
               "This group is mandatory for implementations that have
               access to a system clock and that are capable of setting
               the values for DateAndTime objects."

           GROUP traceRouteNotificationsGroup
           DESCRIPTION
               "This group defines a collection of optional
               notifications."

           GROUP traceRouteHopsTableGroup
           DESCRIPTION
               "This group lists the objects that make up a
               traceRouteHopsEntry.  Support of the traceRouteHopsTable
               is optional."

           OBJECT traceRouteMaxConcurrentRequests
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support SET
               operations to this object."

           OBJECT traceRouteCtlByPassRouteTable
           MIN-ACCESS  read-only
           DESCRIPTION
               "This object is not required by implementations that
               are not capable of its implementation.  The function
               represented by this object is implementable if the
               setsockopt SOL_SOCKET SO_DONTROUTE option is
               supported."

           OBJECT traceRouteCtlSourceAddressType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           MIN-ACCESS  read-only

           DESCRIPTION
               "This object is not required by implementations that
               are not capable of binding the send socket with a
               source address.  An implementation is only required to
               support IPv4 and IPv6 addresses."

           OBJECT traceRouteCtlSourceAddress
           SYNTAX  InetAddress (SIZE(0|4|16))
           MIN-ACCESS  read-only
           DESCRIPTION
               "This object is not required by implementations that
               are not capable of binding the send socket with a
               source address.  An implementation is only required to
               support IPv4 and globally unique IPv6 addresses."

           OBJECT traceRouteCtlIfIndex
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  When write access is
               not supported, return a 0 as the value of this object.
               A value of 0 implies that the function represented by
               this option is not supported."

           OBJECT traceRouteCtlMiscOptions
           MIN-ACCESS  read-only
           DESCRIPTION
               "Support of this object is optional.  When not
               supporting, do not allow write access, and return a
               zero-length octet string as the value of the object."

           OBJECT traceRouteCtlStorageType
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  It is also allowed
              that implementations support only the volatile
               StorageType enumeration."

           OBJECT traceRouteCtlDSField
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  When write access is
               not supported, return a 0 as the value of this object.
               A value of 0 implies that the function represented by
               this option is not supported."

           OBJECT traceRouteCtlType
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  In addition, the only
               value that is RECOMMENDED to be supported by an
               implementation is traceRouteUsingUdpProbes."

           OBJECT traceRouteResultsIpTgtAddrType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteResultsIpTgtAddr
           SYNTAX  InetAddress (SIZE(0|4|16))
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteProbeHistoryHAddrType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteProbeHistoryHAddr
           SYNTAX  InetAddress (SIZE(0|4|16))
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteHopsIpTgtAddressType
           SYNTAX  InetAddressType { unknown(0), ipv4(1), ipv6(2) }

           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."

           OBJECT traceRouteHopsIpTgtAddress
           SYNTAX  InetAddress (SIZE(0|4|16))
           DESCRIPTION
               "An implementation should only support IPv4 and
               globally unique IPv6 address values for this object."
       ::= { traceRouteCompliances 1 }

    -- MIB groupings

    traceRouteMinimumGroup OBJECT-GROUP
      OBJECTS {
                traceRouteMaxConcurrentRequests,
                traceRouteCtlTargetAddressType,
                traceRouteCtlTargetAddress,
                traceRouteCtlByPassRouteTable,
                traceRouteCtlDataSize,
                traceRouteCtlTimeOut,
                traceRouteCtlProbesPerHop,
                traceRouteCtlPort,
                traceRouteCtlMaxTtl,
                traceRouteCtlDSField,
                traceRouteCtlSourceAddressType,
                traceRouteCtlSourceAddress,
                traceRouteCtlIfIndex,
                traceRouteCtlMiscOptions,
                traceRouteCtlMaxFailures,
                traceRouteCtlDontFragment,
                traceRouteCtlInitialTtl,
                traceRouteCtlFrequency,
                traceRouteCtlStorageType,
                traceRouteCtlAdminStatus,
                traceRouteCtlMaxRows,
                traceRouteCtlTrapGeneration,
                traceRouteCtlDescr,
                traceRouteCtlCreateHopsEntries,
                traceRouteCtlType,
                traceRouteResultsOperStatus,
                traceRouteResultsCurHopCount,
                traceRouteResultsCurProbeCount,
                traceRouteResultsIpTgtAddrType,
                traceRouteResultsIpTgtAddr,
                traceRouteResultsTestAttempts,
                traceRouteResultsTestSuccesses,
                traceRouteResultsLastGoodPath

             }
      STATUS  current
      DESCRIPTION
          "The group of objects that constitute the remote traceroute
          operation."
      ::= { traceRouteGroups 5 }

    traceRouteCtlRowStatusGroup OBJECT-GROUP
      OBJECTS {
                traceRouteCtlRowStatus
             }
      STATUS  current
      DESCRIPTION
          "The RowStatus object of the traceRouteCtlTable."
      ::= { traceRouteGroups 6 }

    traceRouteHistoryGroup OBJECT-GROUP
      OBJECTS {
                traceRouteProbeHistoryHAddrType,
                traceRouteProbeHistoryHAddr,
                traceRouteProbeHistoryResponse,
                traceRouteProbeHistoryStatus,
                traceRouteProbeHistoryLastRC,
                traceRouteProbeHistoryTime
              }

      STATUS  current
      DESCRIPTION
          "The group of objects that constitute the history
          capability."
       ::= { traceRouteGroups 7 }

    traceRouteNotificationsGroup NOTIFICATION-GROUP
      NOTIFICATIONS {
                traceRoutePathChange,
                traceRouteTestFailed,
                traceRouteTestCompleted
             }
      STATUS   current
      DESCRIPTION
          "The notifications that are required to be supported by
          implementations of this MIB."
      ::= { traceRouteGroups 3 }

    traceRouteHopsTableGroup OBJECT-GROUP
      OBJECTS {
                traceRouteHopsIpTgtAddressType,
                traceRouteHopsIpTgtAddress,

                traceRouteHopsMinRtt,
                traceRouteHopsMaxRtt,
                traceRouteHopsAverageRtt,
                traceRouteHopsRttSumOfSquares,
                traceRouteHopsSentProbes,
                traceRouteHopsProbeResponses,
                traceRouteHopsLastGoodProbe
              }
       STATUS   current
       DESCRIPTION
           "The group of objects that constitute the
           traceRouteHopsTable."
     ::= { traceRouteGroups 4 }

    traceRouteGroup OBJECT-GROUP
      OBJECTS {
                traceRouteMaxConcurrentRequests,
                traceRouteCtlTargetAddressType,
                traceRouteCtlTargetAddress,
                traceRouteCtlByPassRouteTable,
                traceRouteCtlDataSize,
                traceRouteCtlTimeOut,
                traceRouteCtlProbesPerHop,
                traceRouteCtlPort,
                traceRouteCtlMaxTtl,
                traceRouteCtlDSField,
                traceRouteCtlSourceAddressType,
                traceRouteCtlSourceAddress,
                traceRouteCtlIfIndex,
                traceRouteCtlMiscOptions,
                traceRouteCtlMaxFailures,
                traceRouteCtlDontFragment,
                traceRouteCtlInitialTtl,
                traceRouteCtlFrequency,
                traceRouteCtlStorageType,
                traceRouteCtlAdminStatus,
                traceRouteCtlMaxRows,
                traceRouteCtlTrapGeneration,
                traceRouteCtlDescr,
                traceRouteCtlCreateHopsEntries,
                traceRouteCtlType,
                traceRouteCtlRowStatus,
                traceRouteResultsOperStatus,
                traceRouteResultsCurHopCount,
                traceRouteResultsCurProbeCount,
                traceRouteResultsIpTgtAddrType,
                traceRouteResultsIpTgtAddr,
                traceRouteResultsTestAttempts,

                traceRouteResultsTestSuccesses,
                traceRouteProbeHistoryHAddrType,
                traceRouteProbeHistoryHAddr,
                traceRouteProbeHistoryResponse,
                traceRouteProbeHistoryStatus,
                traceRouteProbeHistoryLastRC
             }
      STATUS  deprecated
      DESCRIPTION
          "The group of objects that constitute the remote traceroute
          operation."
      ::= { traceRouteGroups 1 }

    traceRouteTimeStampGroup OBJECT-GROUP
      OBJECTS {
                traceRouteResultsLastGoodPath,
                traceRouteProbeHistoryTime
              }
      STATUS  deprecated
      DESCRIPTION
          "The group of DateAndTime objects."
       ::= { traceRouteGroups 2 }

   END

4.3.  DISMAN-NSLOOKUP-MIB

   DISMAN-NSLOOKUP-MIB DEFINITIONS ::= BEGIN

   IMPORTS
       MODULE-IDENTITY, OBJECT-TYPE,
       Unsigned32, mib-2, Integer32
           FROM SNMPv2-SMI                  -- RFC2578
       RowStatus
           FROM SNMPv2-TC                   -- RFC2579
       MODULE-COMPLIANCE, OBJECT-GROUP
           FROM SNMPv2-CONF                 -- RFC2580
       SnmpAdminString
           FROM SNMP-FRAMEWORK-MIB          -- RFC3411
       InetAddressType, InetAddress
           FROM INET-ADDRESS-MIB;           -- RFC4001

    lookupMIB MODULE-IDENTITY
       LAST-UPDATED "200606130000Z"         -- 13 June 2006
       ORGANIZATION "IETF Distributed Management Working Group"
       CONTACT-INFO
           "Juergen Quittek

           NEC Europe Ltd.
           Network Laboratories
           Kurfuersten-Anlage 36
           69115 Heidelberg
           Germany

           Phone: +49 6221 4342-115
           Email: quittek@netlab.nec.de"
       DESCRIPTION
           "The Lookup MIB (DISMAN-NSLOOKUP-MIB) enables determination
           of either the name(s) corresponding to a host address or of
           the address(es) associated with a host name at a remote
           host.

           Copyright (C) The Internet Society (2006).  This version of
           this MIB module is part of RFC 4560; see the RFC itself for
           full legal notices."

        --  Revision history

        REVISION     "200606130000Z"         -- 13 June 2006
        DESCRIPTION
            "Updated version, published as RFC 4560.
                - Replaced references to RFC 2575 by RFC 3415
                - Replaced references to RFC 2571 by RFC 3411
                - Replaced references to RFC 2851 by RFC 4001
                - Added value enabled(1) to SYNTAX clause of
                  lookupCtlOperStatus
                - Added lookupMinimumCompliance
                - Defined semantics of value 0 for object
                  lookupPurgeTime
                - Added DEFVAL { unknown } to object
                  lookupCtlTargetAddressType OBJECT-TYPE"

        REVISION     "200009210000Z"         -- 21 September 2000
        DESCRIPTION
            "Initial version, published as RFC 2925."

       ::= { mib-2 82 }

    -- Top level structure of the MIB

    lookupObjects        OBJECT IDENTIFIER ::= { lookupMIB 1 }
    lookupConformance    OBJECT IDENTIFIER ::= { lookupMIB 2 }

    -- Simple Object Definitions

    lookupMaxConcurrentRequests OBJECT-TYPE

       SYNTAX      Unsigned32
       UNITS       "requests"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The maximum number of concurrent active lookup requests
          that are allowed within an agent implementation.  A value
          of 0 for this object implies that there is no limit for
          the number of concurrent active requests in effect.

          The limit applies only to new requests being activated.
          When a new value is set, the agent will continue processing
          all the requests already active, even if their number
          exceed the limit just imposed."
       DEFVAL { 10 }
       ::= { lookupObjects 1 }

    lookupPurgeTime OBJECT-TYPE
       SYNTAX      Unsigned32 (0..86400)
       UNITS       "seconds"
       MAX-ACCESS  read-write
       STATUS      current
       DESCRIPTION
          "The amount of time to wait before automatically
          deleting an entry in the lookupCtlTable and any
          dependent lookupResultsTable entries
          after the lookup operation represented by a
          lookupCtlEntry has been completed.
          A lookupCtEntry is considered complete
          when its lookupCtlOperStatus object has a
          value of completed(3).

          A value of 0 indicates that automatic deletion
          of entries is disabled."
       DEFVAL { 900 }  -- 15 minutes as default
       ::= { lookupObjects 2 }

    -- Lookup Control Table

    lookupCtlTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF LookupCtlEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines the Lookup Control Table for providing
           the capability of performing a lookup operation
           for a symbolic host name or for a host address
           from a remote host."

      ::= { lookupObjects 3 }

    lookupCtlEntry OBJECT-TYPE
       SYNTAX      LookupCtlEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines an entry in the lookupCtlTable.  A
           lookupCtlEntry is initially indexed by
           lookupCtlOwnerIndex, which is a type of SnmpAdminString,
           a textual convention that allows for the use of the SNMPv3
           View-Based Access Control Model (RFC 3415, VACM)
           and that also allows a management application to identify
           its entries.  The second index element,
           lookupCtlOperationName, enables the same
           lookupCtlOwnerIndex entity to have multiple outstanding
           requests.  The value of lookupCtlTargetAddressType
           determines which lookup function to perform."
       INDEX {
                lookupCtlOwnerIndex,
                lookupCtlOperationName
             }
       ::= { lookupCtlTable 1 }

    LookupCtlEntry ::=
       SEQUENCE {
           lookupCtlOwnerIndex         SnmpAdminString,
           lookupCtlOperationName      SnmpAdminString,
           lookupCtlTargetAddressType  InetAddressType,
           lookupCtlTargetAddress      InetAddress,
           lookupCtlOperStatus         INTEGER,
           lookupCtlTime               Unsigned32,
           lookupCtlRc                 Integer32,
           lookupCtlRowStatus          RowStatus
       }

    lookupCtlOwnerIndex OBJECT-TYPE
       SYNTAX      SnmpAdminString (SIZE(0..32))
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "To facilitate the provisioning of access control by a
          security administrator using the View-Based Access
          Control Model (RFC 2575, VACM) for tables in which
          multiple users may need to create or
          modify entries independently, the initial index is used as
          an 'owner index'.  Such an initial index has a syntax of
          SnmpAdminString and can thus be trivially mapped to a

          securityName or groupName defined in VACM, in
          accordance with a security policy.

          When used in conjunction with such a security policy all
          entries in the table belonging to a particular user (or
          group) will have the same value for this initial index.
          For a given user's entries in a particular table, the
          object identifiers for the information in these entries
          will have the same subidentifiers (except for the
          'column' subidentifier) up to the end of the encoded
          owner index.  To configure VACM to permit access to this
          portion of the table, one would create
          vacmViewTreeFamilyTable entries with the value of
          vacmViewTreeFamilySubtree including the owner index
          portion, and vacmViewTreeFamilyMask 'wildcarding' the
          column subidentifier.  More elaborate configurations
          are possible."
       ::= { lookupCtlEntry 1 }

    lookupCtlOperationName OBJECT-TYPE
       SYNTAX      SnmpAdminString (SIZE(0..32))
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "The name of a lookup operation.  This is locally unique,
           within the scope of an lookupCtlOwnerIndex."
       ::= { lookupCtlEntry 2 }

    lookupCtlTargetAddressType OBJECT-TYPE
       SYNTAX      InetAddressType
       MAX-ACCESS  read-create
       STATUS      current

       DESCRIPTION
           "Specifies the type of address for performing a
           lookup operation for a symbolic host name or for a host
           address from a remote host.

           Specification of dns(16) as the value for this object
           means that a function such as, for example, getaddrinfo()
           or gethostbyname() should be performed to return one or
           more numeric addresses.  Use of a value of either ipv4(1)
           or ipv6(2) means that a functions such as, for example,
           getnameinfo() or gethostbyaddr() should be used to return
           the symbolic names associated with a host."
       DEFVAL { unknown }
       ::= { lookupCtlEntry 3 }

    lookupCtlTargetAddress OBJECT-TYPE
       SYNTAX      InetAddress
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies the address used for a resolver lookup at a
           remote host.  The corresponding lookupCtlTargetAddressType
           objects determines its type, as well as the function
           that can be requested.

           A value for this object MUST be set prior to
           transitioning its corresponding lookupCtlEntry to
           active(1) via lookupCtlRowStatus."
       ::= { lookupCtlEntry 4 }

    lookupCtlOperStatus OBJECT-TYPE
       SYNTAX      INTEGER {
                      enabled(1),    -- operation is active
                      notStarted(2), -- operation has not started
                      completed(3)   -- operation is done
                   }
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Reflects the operational state of an lookupCtlEntry:

              enabled(1)    - Operation is active.
              notStarted(2) - Operation has not been enabled.
              completed(3)  - Operation has been completed.

            An operation is automatically enabled(1) when its
            lookupCtlRowStatus object is transitioned to active(1)
            status.  Until this occurs, lookupCtlOperStatus MUST
            report a value of notStarted(2).  After the lookup
            operation is completed (success or failure), the value
            for lookupCtlOperStatus MUST be transitioned to
            completed(3)."
       ::= { lookupCtlEntry 5 }

    lookupCtlTime OBJECT-TYPE
       SYNTAX      Unsigned32
       UNITS       "milliseconds"
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Reports the number of milliseconds that a lookup
           operation required to be completed at a remote host.
           Completed means operation failure as well as

           success."
       ::= { lookupCtlEntry 6 }

    lookupCtlRc OBJECT-TYPE
       SYNTAX      Integer32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The system-specific return code from a lookup
           operation.  All implementations MUST return a value
           of 0 for this object when the remote lookup
           operation succeeds.  A non-zero value for this
           objects indicates failure.  It is recommended that
           implementations return the error codes that are
           generated by the lookup function used."
       ::= { lookupCtlEntry 7 }

    lookupCtlRowStatus OBJECT-TYPE
       SYNTAX      RowStatus
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "This object allows entries to be created and deleted
           in the lookupCtlTable.

           A remote lookup operation is started when an
           entry in this table is created via an SNMP set
           request and the entry is activated.  This
           occurs by setting the value of this object
           to CreateAndGo(4) during row creation or
           by setting this object to active(1) after
           the row is created.

           A value MUST be specified for lookupCtlTargetAddress
           prior to the acceptance of a transition to active(1) state.
           A remote lookup operation starts when its entry
           first becomes active(1).  Transitions in and
           out of active(1) state have no effect on the
           operational behavior of a remote lookup
           operation, with the exception that deletion of
           an entry in this table by setting its RowStatus
           object to destroy(6) will stop an active
           remote lookup operation.

           The operational state of a remote lookup operation
           can be determined by examination of its
           lookupCtlOperStatus object."
       REFERENCE

           "See definition of RowStatus in RFC 2579,
           'Textual Conventions for SMIv2.'"
       ::= { lookupCtlEntry 8 }

   -- Lookup Results Table

    lookupResultsTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF LookupResultsEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines the Lookup Results Table for providing
           the capability of determining the results of a
           operation at a remote host.

           One or more entries are added to the
           lookupResultsTable when a lookup operation,
           as reflected by an lookupCtlEntry, is completed
           successfully.  All entries related to a
           successful lookup operation MUST be added
           to the lookupResultsTable at the same time
           that the associating lookupCtlOperStatus
           object is transitioned to completed(2).

           The number of entries added depends on the
           results determined for a particular lookup
           operation.  All entries associated with an
           lookupCtlEntry are removed when the
           lookupCtlEntry is deleted.

           A remote host can be multi-homed and have more than one IP
           address associated with it (returned by lookup function),
           or it can have more than one symbolic name (returned
           by lookup function).

           A function such as, for example, getnameinfo() or
           gethostbyaddr() is called with a host address as its
           parameter and is used primarily to determine a symbolic
           name to associate with the host address.  Entries in the
           lookupResultsTable MUST be made for each host name
           returned.  If the function identifies an 'official host
           name,' then this symbolic name MUST be assigned a
           lookupResultsIndex of 1.

           A function such as, for example, getaddrinfo() or
           gethostbyname() is called with a symbolic host name and is
           used primarily to retrieve a host address.  The entries

           MUST be stored in the order that they are retrieved from
           the lookup function.  lookupResultsIndex 1 MUST be
           assigned to the first entry."
      ::= { lookupObjects 4 }

    lookupResultsEntry OBJECT-TYPE
       SYNTAX      LookupResultsEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Defines an entry in the lookupResultsTable.  The
           first two index elements identify the
           lookupCtlEntry that a lookupResultsEntry belongs
           to.  The third index element selects a single
           lookup operation result."
       INDEX {
                lookupCtlOwnerIndex,
                lookupCtlOperationName,
                lookupResultsIndex
             }
       ::= { lookupResultsTable 1 }

    LookupResultsEntry ::=
       SEQUENCE {
           lookupResultsIndex        Unsigned32,
           lookupResultsAddressType  InetAddressType,
           lookupResultsAddress      InetAddress
        }

    lookupResultsIndex OBJECT-TYPE
       SYNTAX      Unsigned32 (1..'ffffffff'h)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
           "Entries in the lookupResultsTable are created when
           the result of a lookup operation is determined.

           Entries MUST be stored in the lookupResultsTable in
           the order that they are retrieved.  Values assigned
           to lookupResultsIndex MUST start at 1 and increase
           consecutively."
       ::= { lookupResultsEntry 1 }

    lookupResultsAddressType OBJECT-TYPE
       SYNTAX      InetAddressType
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION

           "Indicates the type of result of a remote lookup
           operation.  A value of unknown(0) implies either that
           the operation hasn't been started or that
           it has failed."
       ::= { lookupResultsEntry 2 }

    lookupResultsAddress OBJECT-TYPE
       SYNTAX      InetAddress
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Reflects a result for a remote lookup operation
           as per the value of lookupResultsAddressType.

           The address type (InetAddressType) that relates to
           this object is specified by the corresponding value
           of lookupResultsAddress."

       ::= { lookupResultsEntry 3 }

    -- Conformance information
    -- Compliance statements

    lookupCompliances OBJECT IDENTIFIER ::= { lookupConformance 1 }
    lookupGroups      OBJECT IDENTIFIER ::= { lookupConformance 2 }

    -- Compliance statements

    lookupCompliance MODULE-COMPLIANCE
       STATUS  current
       DESCRIPTION
               "The compliance statement for SNMP entities that
               fully implement the DISMAN-NSLOOKUP-MIB."
       MODULE  -- this module
           MANDATORY-GROUPS { lookupGroup }

           OBJECT lookupMaxConcurrentRequests
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support set
               operations to this object."

           OBJECT lookupPurgeTime
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support a set
               operation to this object."

       ::= { lookupCompliances 1 }

    lookupMinimumCompliance MODULE-COMPLIANCE
       STATUS  current
       DESCRIPTION
               "The minimum compliance statement for SNMP entities
               that implement the minimal subset of the
               DISMAN-NSLOOKUP-MIB.  Implementors might choose this
               subset for small devices with limited resources."
       MODULE  -- this module
           MANDATORY-GROUPS { lookupGroup }

           OBJECT lookupMaxConcurrentRequests
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support set
               operations to this object."

           OBJECT lookupPurgeTime
           MIN-ACCESS  read-only
           DESCRIPTION
               "The agent is not required to support a set
               operation to this object."

           OBJECT lookupCtlRowStatus
           MIN-ACCESS  read-only
           DESCRIPTION
               "Write access is not required.  If write access is
               not supported, then at least one entry in the
               lookupCtlTable MUST be established already when the SNMP
               agent starts offering access to the NSLOOKUP-MIB module.
               If, in such a case, only a single entry is offered, then
               it is RECOMMENDED that this entry use strings with a
               length of 0 for both of its two index objects."
       ::= { lookupCompliances 2 }

    -- MIB groupings

    lookupGroup OBJECT-GROUP
      OBJECTS {
                lookupMaxConcurrentRequests,
                lookupPurgeTime,
                lookupCtlOperStatus,
                lookupCtlTargetAddressType,
                lookupCtlTargetAddress,
                lookupCtlTime,
                lookupCtlRc,
                lookupCtlRowStatus,

                lookupResultsAddressType,
                lookupResultsAddress
              }
      STATUS  current
      DESCRIPTION
          "The group of objects that constitute the remote
          Lookup operation."
       ::= { lookupGroups 1 }

   END

5.  Security Considerations

   There are a number of management objects defined in the three MIB
   modules with a MAX-ACCESS clause of read-write and/or read-create.
   Such objects may be considered sensitive or vulnerable in some
   network environments.  The support for SET operations in a non-secure
   environment without proper protection can have a negative effect on
   network operations.  These are the tables and objects and their
   sensitivity/vulnerability:

   o  pingMaxConcurrentRequests
   o  traceRouteMaxConcurrentRequests
   o  lookupMaxConcurrentRequests
      The MIB modules limit their maximum numbers of concurrent requests
      by the values of these objects.  Unauthorized access to them may
      lead to an overload of the managed node and to a disruption of
      other functions of the managed node.

   o  pingCtlTable
   o  traceRouteCtlTable
   o  lookupCtlTable
      All objects in entries of these tables (except index objects) have
      a MAX-ACCESS clause of read-create.  Unauthorized access to these
      objects can disturb the measurements controlled by the tables.
      Also, the functions offered by the MIB modules can be misused for
      illegal data retrieval and for attacking other systems by floods
      of ping probes, traceroute probes or lookup requests,
      respectively.

   In general, all three, the ping, traceroute, and lookup functions,
   when used excessively are considered a form of system attack.  In the
   case of ping, sending a system request too often can negatively
   effect its performance and attempting to connect to what is supposed
   to be an unused port can be very unpredictable.  Excessive use of the
   traceroute capability can, like ping, negatively affect system
   performance.  The same applies to excessive use of the lookup
   service, particularly if the lookup cannot be resolved locally.  In

   insecure environments, it is RECOMMENDED that the MIBs defined within
   this memo not be supported.

   o  lookupPurgeTime
      Unauthorized access to this object can lead to the deletion of
      results of lookup operations before they are read by a management
      system, if the object is set to 0 or small values close to 0.  If
      the object is set to very high values, unauthorized access can
      lead to a high consumption of resources for storing lookup
      results.

   Some of the readable objects in this MIB module (i.e., objects with a
   MAX-ACCESS other than not-accessible) may be considered sensitive or
   vulnerable in some network environments.  It is thus important to
   control even GET and/or NOTIFY access to these objects and possibly
   to even encrypt the values of these objects when sending them over
   the network via SNMP.  However, the only information that can be
   disclosed without encryption is the configuration and results of
   measurements that are performed by implementations of the MIB
   modules.

   To facilitate the provisioning of access control by a security
   administrator using the View-Based Access Control Model (VACM),
   defined in RFC 3415 [RFC3415], for tables in which multiple users may
   need to create or modify entries independently, the initial index is
   used as an "owner index."  Such an initial index has a syntax of
   SnmpAdminString and can thus be trivially mapped to a securityName or
   groupName defined in VACM, in accordance with a security policy.

   All entries in related tables belonging to a particular user will
   have the same value for this initial index.  For a given user's
   entries in a particular table, the object identifiers for the
   information in these entries will have the same subidentifiers
   (except for the "column" subidentifier) up to the end of the encoded
   owner index.  To configure VACM to permit access to this portion of
   the table, one would create vacmViewTreeFamilyTable entries with the
   value of vacmViewTreeFamilySubtree including the owner index portion,
   and vacmViewTreeFamilyMask 'wildcarding' the column subidentifier.
   More elaborate configurations are possible.  The VACM access control
   mechanism described above provides control.

   SNMP versions prior to SNMPv3 did not include adequate security.
   Even if the network itself is secure (for example by using IPSec),
   even then, there is no control as to who on the secure network is

   allowed to access and GET/SET (read/change/create/delete) the objects
   in this MIB module.

   It is RECOMMENDED that implementers consider the security features as
   provided by the SNMPv3 framework (see [RFC3410], section 8),
   including full support for the SNMPv3 cryptographic mechanisms (for
   authentication and privacy).

   Further, deployment of SNMP versions prior to SNMPv3 is NOT
   RECOMMENDED.  Instead, it is RECOMMENDED to deploy SNMPv3 and to
   enable cryptographic security.  It is then a customer/operator
   responsibility to ensure that the SNMP entity giving access to an
   instance of this MIB module is properly configured to give access to
   the objects only to those principals (users) that have legitimate
   rights to indeed GET or SET (change/create/delete) them.

6.  Acknowledgements

   This document is a product of the DISMAN Working Group.  Thanks to
   Eduardo Cardona for suggesting the minimum compliance statements and
   to Juergen Schoenwaelder for the very detailed and constructive MIB
   review.

7.  References

7.1.  Normative References

   [RFC2119]   Bradner, S., "Key words for use in RFCs to Indicate
               Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC2578]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
               Rose, M., and S. Waldbusser, "Structure of Management
               Information Version 2 (SMIv2)", STD 58, RFC 2578, April
               1999.

   [RFC2579]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
               Rose, M., and S. Waldbusser, "Textual Conventions for
               SMIv2", STD 58, RFC 2579, April 1999.

   [RFC2580]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J.,
               Rose, M., and S. Waldbusser, "Conformance Statements for
               SMIv2", STD 58, RFC 2580, April 1999.

   [RFC2863]   McCloghrie, K. and F. Kastenholz, "The Interfaces Group
               MIB", RFC 2863, June 2000.

   [RFC3411]   Harrington, D., Presuhn, R., and B. Wijnen, "An
               Architecture for Describing Simple Network Management
               Protocol (SNMP) Management Frameworks", STD 62, RFC 3411,
               December 2002.

   [RFC4001]   Daniele, M., Haberman, B., Routhier, S., and J.
               Schoenwaelder, "Textual Conventions for Internet Network
               Addresses", RFC 4001, February 2005.

7.2.  Informative References

   [RFC792]    Postel, J., "Internet Control Message Protocol", STD 5,
               RFC 792, September 1981.

   [RFC862]    Postel, J., "Echo Protocol", STD 20, RFC 862, May 1983.

   [RFC1812]   Baker, F., "Requirements for IP Version 4 Routers", RFC
               1812, June 1995.

   [RFC2474]   Nichols, K., Blake, S., Baker, F., and D. Black,
               "Definition of the Differentiated Services Field (DS
               Field) in the IPv4 and IPv6 Headers", RFC 2474, December
               1998.

   [RFC3260]   Grossman, D., "New Terminology and Clarifications for
               Diffserv", RFC 3260, April 2002.

   [RFC3410]   Case, J., Mundy, R., Partain, D. and B. Stewart,
               "Introduction and Applicability Statements for Internet-
               Standard Management Framework", RFC 3410, December 2002.

   [RFC3415]   Wijnen, B., Presuhn, R., and K. McCloghrie, "View-based
               Access Control Model (VACM) for the Simple Network
               Management Protocol (SNMP)", STD 62, RFC 3415, December
               2002.

Authors' Addresses

   Juergen Quittek
   NEC Europe Ltd.
   Network Laboratories
   Kurfuersten-Anlage 36
   69115 Heidelberg
   Germany

   Phone: +49 6221 4342-115
   EMail: quittek@netlab.nec.de

   Kenneth D. White
   Dept. BRQA/Bldg. 501/G114
   IBM Corporation
   P.O.Box 12195
   3039 Cornwallis
   Research Triangle Park, NC 27709, USA

   EMail: wkenneth@us.ibm.com

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