Patent application number | Description | Published |
20120207174 | DISTRIBUTED SERVICE PROCESSING OF NETWORK GATEWAYS USING VIRTUAL MACHINES - A network gateway device includes an ingress interface, an egress interface, and a load balancing module coupled to the ingress and egress interfaces. The load balancing module configured to receive a packet from the ingress interface, determine a set of a plurality of processes corresponding a connections session associated with the packet based on a policy. For each of the identified processes, the load balancing module is to identify a service processing module executed by a virtual machine that is capable of handling the identified process, and to send the packet to the identified service processing module to perform the identified process on the packet. The packet is then transmitted to the egress interface of the gateway device to be forwarded to a destination. | 08-16-2012 |
20120210417 | DISTRIBUTED FIREWALL ARCHITECTURE USING VIRTUAL MACHINES - A distributed firewall of a gateway device includes at least one IO module for performing IO functionality of the distributed firewall, at least one security processing module for performing security functionality of the distributed firewall and a firewall controller for managing the IO module and the security processing module. Each of the at least one IO and security processing modules is executed within a virtual machine. In response to a packet received from an ingress interface, the at least one IO module is to identify a security processing module corresponding to a connections session associated with the packet, to transmit the packet to the identified security processing module to perform a security process on the packet, and in response to a signal received from the identified security processing module indicating that the security process has been completed, to transmit the packet to the egress interface. | 08-16-2012 |
20130091264 | DYNAMIC SESSION MIGRATION BETWEEN NETWORK SECURITY GATEWAYS - A method and apparatus is disclosed herein for migrating session information between security gateways are disclosed. In one embodiment, receiving, at a first security gateway, session information associated with a session corresponding to a network connection, the session information having been transferred from a second security gateway, the first and second security gateway being separate physical devices; and thereafter performing security processing for the session at the first security gateway. | 04-11-2013 |
20130111542 | SECURITY POLICY TOKENIZATION | 05-02-2013 |
20130117801 | VIRTUAL SECURITY BOUNDARY FOR PHYSICAL OR VIRTUAL NETWORK DEVICES - A method and apparatus is disclosed herein for using a virtual security boundary. In one embodiment, the method comprises receiving information from a virtual machine after the virtual machine has been moved from a first physical location in a network to a second physical location in the network, where the information identifies the virtual machine as one previously assigned to a security boundary; determining that access to the virtual machine at the first physical location was permitted by the security gateway; assigning the virtual machine at the second physical location to the security boundary, and applying a security policy associated with the security boundary to communications between the network and the virtual machine at the second physical location. | 05-09-2013 |
20130117836 | AUTO DISCOVERY OF VIRTUAL MACHINES - A method and apparatus is disclosed herein for performing auto discovery of virtual machines. In one embodiment, the method comprises monitoring, using an interface of the device, one or more packets being sent from one or more virtual machines, the one or more packets being sent determining, using a processor of the device, if one of the monitored packets comprises a discovery packet from one virtual machine of the one or more virtual machines, wherein the discovery packet includes an address of a destination location; sending, using the interface of the device, a reply packet to the one virtual machine using an address in the discovery packet identified in the monitored packets, the reply packet including an Internet Protocol (IP) address of the device. | 05-09-2013 |
20130250956 | NON-FRAGMENTED IP PACKET TUNNELING IN A NETWORK - A method and apparatus is disclosed herein for IP packet tunneling in a network. In one embodiment, the method comprises receiving, at a first network device, a first IP packet of a IP connection; creating a second IP packet by replacing information in a field in the first IP packet with a session ID identifying the IP connection; and forwarding, by the first network device, the second IP packet to the second network device in the distributed network environment. | 09-26-2013 |
20130263245 | DISTRIBUTED TCP SYN FLOOD PROTECTION - A method and apparatus is disclosed herein for TCP SYN flood protection. In one embodiment, a TCP SYN flood protection arrangement comprises a first device operable to process packet input and output functions, including performing sender verification with respect to a connection initiation from a sender for a first TCP connection between the sender and a destination server and a second device, separate from the first device, to perform one or more security processing operations on packets of the first TCP connection from the sender after the first device verifies the sender is legitimate. | 10-03-2013 |
20130275592 | ADAPTIVE SESSION FORWARDING FOLLOWING VIRTUAL MACHINE MIGRATION DETECTION - A network system includes a first network access device having an input/output (IO) module of a firewall to capture a packet of a network session originated from a first node associated with the first network access device, a first security device having a firewall processing module to determine based on the captured packet whether the first node is a destination node that is receiving VM migration from a second node that is associated with a second network access device. The first security device is to update a first flow table within the first network access device. The network system further includes a second security device to receive a message from the first security device concerning the VM migration to update a second flow table of the second network access device, such that further network traffic of the network session is routed to the first node without interrupting the network session. | 10-17-2013 |
20130276092 | SYSTEM AND METHOD FOR DYNAMIC SECURITY INSERTION IN NETWORK VIRTUALIZATION - A method and apparatus for dynamic security insertion into virtualized networks is described. The method may include receiving, at a network device from a second network device, a data packet and application data extracted from the data packet. The method may also include generating a routing decision for a network connection associated with the data packet based, at least in part, on the application data. Furthermore, the method may include transmitting the routing decision for the data packet to the second device for the second device to route the data based on the routing decision. | 10-17-2013 |
20130291088 | COOPERATIVE NETWORK SECURITY INSPECTION - A network system includes a security device and a network access device. The network access device is to receive a packet from a source node destined to a destination node, and to examine a data structure maintained by the network access device to determine whether the data structure stores a data member having a predetermined value, the data member indicating whether the packet should undergo security processing. If the data member matches the predetermined value, the packet is transmitted to a security device associated with the network access device to allow the security device to perform content inspection, and in response to a response received from the security device, the packet is routed to the destination node dependent upon the response. The packet is routed to the destination node without forwarding the packet to the security device. | 10-31-2013 |