| Patent application number | Description | Published |
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| 20080244090 | Access Device Routing Device and Method Thereof Supporting Stateless Address Configuration Communication Network - The present invention relates to an IPv6-based access device, edge router and method for stainless address configuration for IPv6 user equipment in an Ethernet access network, wherein, the access device adds the relay agent ID indicating the access device itself and the relevant port identifier indicating the user equipment to a router solicitation message sent by the user equipment in the form of a newly defined option, and forwards the message to the relevant edge router; and the edge router configures a dedicated address prefix for the user equipment according to the relay agent ID and port identifier, combines the address prefix, the relay ID and the port identifier into a router response message, and sends the response message to the relevant access equipment indicated by the relay ID; the access device sends a router advertisement message only including the address prefix via the line port indicated by the port identifier to user equipment. By allocating the dedicated address prefix to every data subscriber line for IPv6 service, IPv6 stainless address configuration is achieved to solve the security and scalability problems in the prior art. | 10-02-2008 |
| 20080320111 | Method for Domain Name Configuration in Ipv6 Access Network and the Network Device Hereof - The present invention provides a method and device for hierarchical configuration of domain name in IPv6 network. Said method comprises: a) negotiating a unique user network's name between a user and a network SP; b) a client terminal device at the user network side obtaining prefix of IPv6 network address and suffix of the user network's domain name by sessioning with a network access device, said suffix of the user network's domain name being consisting of the user network's name and suffix of the network SP's domain name; c) the network access device further informing the network SP's DNS server of establishing the resource record of said user network's domain name server; d) said client terminal device conducting the address configuration and providing domain name service for hosts at the user network side according to the obtained prefix of IPv6 network address and suffix of the user network's domain name. | 12-25-2008 |
| 20090204850 | APPARATUS AND A METHOD FOR REPORTING THE ERROR OF EACH LEVEL OF THE TUNNEL DATA PACKET IN A COMMUNICATION NETWORK - The invention provides methods and devices for reporting and parsing the errors of a packet based on IPSec protocol family in a communication network. Concretely, the reserved field in ICMP security failure message is used to denote the error type at the second level of the error in the packet. With the aid of the solution provided by the invention, it is possible to report the error types for a tunnel packet which has an error in detail. And the source termination device can ascertain the error types of a tunnel packet, so as to eliminate the error. | 08-13-2009 |
| 20100074144 | METHOD FOR CONFIGURING NODES WITHIN ANYCAST GROUP, AND ASSISTANCE METHOD AND DEVICE THEREFOR - A method for configuring, in a preset node within an anycast group, non-preset nodes within the group and a control device therefor are provided. The method comprises: generating one or more address configuration messages based on the predetermined configuration address information; and sending to each of non-preset nodes within the anycast group the address configuration message corresponding to the non-preset node. A method for assistant configuration of non-preset nodes within an anycast group and an assistance control device therefor are also provided. | 03-25-2010 |
| 20100100908 | METHOD AND APPARATUS FOR RECEIVING MULTIMEDIA SERVICE AND AIDING THE RECEIPT OF MULTIMEDIA SERVICE - The invention provides a new solution for multimedia service guides, so as to aid the user equipment to receive multimedia service. The multimedia service management device notifies a service identifier and a service address of the multimedia service to a network server, and notifies the service identifier of the multimedia service to multimedia service guide device. Multimedia service guide device generates multimedia service guides comprising service identifier. After the user equipment obtains the multimedia service guides, it queries the network server for the service address corresponding to the multimedia service according to the service identifier comprised in the multimedia service guides, and obtains the multimedia service according to the service address. | 04-22-2010 |
| 20100111084 | METHOD AND APPARATUS OF JOINT-REGISTERING IN MULTICAST COMMUNICATION NETWORK - The present invention provides a method and apparatus for registering to a designated router in a rendezvous point in an anycast group in a multicast communication network, wherein the rendezvous point implements a joint-registering based on registering status of all rendezvous points in the anycast group. The main rendezvous point sends to the designated router the Register Stop message only when all rendezvous points in the anycast group do not need the Register message from the designated router; when any one of other rendezvous points does not need the Register message, sending the Register message to it is stopped. With the method and apparatus of the present invention, the cases resulting in the interruption of subscriber terminal multicast traffic can be reduced, and the CPU resource of the main rendezvous point and bandwidth resources between it and other rendezvous points are saved. | 05-06-2010 |
| 20100290463 | METHOD AND APPARATUS FOR CONTROLLING MULTICAST IP PACKETS IN ACCESS NETWORK - The present invention proposes a method for controlling the uplink transmission of the multicast IP packet sourced from the UE in field of IP packet transmission in access network. According to the technical solution of the present invention, the access devices receives IP packet from the UE, checks the IP packet and determines whether the IP packet is multicast IP packet that is allowed to be accessed. If the access device determines that the IP packet is multicast IP packet that is allowed to be accessed, then it sends the multicast IP packet in multicast form. Via the present invention, the access device can allow the uplink valid multicast IP packet to pass, preferably, determines and intercepts the malicious attacks via multicast IP packet, so as to ensure the DSL access device's support for mobile IPv4, so as to keep the uninterrupted connection of the service to the user when the user moves between different subnets. | 11-18-2010 |
| 20110064077 | METHOD AND APPARATUS FOR SENDING AND RECEIVING MULTICAST PACKETS - The present invention relates to a solution for taking a network equipment in a communication network as a root node to generate a logical topology tree for a subscriber terminal which requests the sending of multicast packets, and then generating a multicast tree on the logical topology tree with the network device as the root node, so as to forward the multicast packets. With the solution of sending a multicast packet to the subscriber terminal, it can effectively save the network bandwidth resource and reduce the transmission delay of multicast packet. | 03-17-2011 |
| 20110119737 | METHOD AND DEVICE FOR DISTRIBUTED SECURITY CONTROL IN COMMUNICATION NETWORK SYSTEM - With migration of network technology and more and more requirements of user equipment for accessing to Internet, the network security faces more and more severe situation. There is provided a method for distributed security control in communication network system and the device thereof in order to improve security and operatability of network operator. In the method, firstly the network controller establishes a network security control mechanism, which is used for a second network device to check the validity of the data package from the user equipment; secondly, the network controller sends the network security control mechanism to the second network devices; lastly, the second network device checks the validity of the data package from the user equipment according to the network security control mechanism, and discards the data package if the data package is invalid. With the present invention, security and operatability of the communication network maybe improved greatly, particularly, the functionality of address anti-spoofing can be implemented in the network with a WLAN architecture in centralized control. (FIG. | 05-19-2011 |
| 20110128956 | METHOD AND APPARATUS FOR REQUESTING MULTICAST, PROCESSING AND ASSISTING MULTICAST REQUEST - According to at least one particular embodiment of the present invention, in an ASM-based RP, when the RP receives a multicast transmission request from a multicast source, it processes said multicast transmission request of the multicast source according to the multicast transmission request and remaining resources available for multicast forwarding in the RP. When using the methods and apparatuses provided in the present invention, by means of reasonable controls on the multicast transmission request conducted by the RP according to its resource situation, the hardware processing loads and the port traffic load of RP can be effectively maintained within an appropriate range, thereby avoiding resource exhaustion, and the disadvantageous impact of new multicast services on the existing services can be also avoided. | 06-02-2011 |
| 20110134922 | METHOD AND APPARATUS FOR FORWARDING PACKETS IN IPV6 ACCESS NODE - In view of the technical problems that exist during implementing IP address anti-spoofing in an access node device in an IPv6 access network, the present invention proposes a packet forwarding method and apparatus in an IPv6 Access Node, for forwarding a packet from a Residential Gateway. In the method, the access node device first receives a packet from the Residential Gateway, then obtains a network prefix in a source UPv6 address of the packet, judges whether the network prefix in the source IPv6 address of the packet is a valid network prefix of a CPN corresponding to the Residential Gateway, and if yes, forwards the packet finally. Particularly, in the present invention the access node device can automatically obtain valid network prefix using technical means such as snooping a network prefix allocation reply message. Therefore, the present invention greatly increases operation efficiency and security of the IPv6 access network and simplifies network management of the IPv6 access network. | 06-09-2011 |
