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Method and system for including security information with a packet

  • US 7,886,145 B2
  • Filed: 11/23/2004
  • Issued: 02/08/2011
  • Est. Priority Date: 11/23/2004
  • Status: Active Grant
First Claim
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1. A computer-readable method comprising:

  • determining, at a first network node, whether a packet is to be sent from a first network to a second network, whereinthe first network node is a perimeter network device of the first network, andthe determining comprisesdetermining whetherthe first network is configured to support a network security technique,the second network is not configured to support the network security technique, andthe packet will be processed by a second network node, wherein 

    the second network node is configured to support the network security technique;

    if the packet is to be sent from the first network to the second network , including network security information with the packet, whereinthe network security information is associated with the network security technique,the network security information is configured to prevent the second network from accessing the network security information, andthe network security information is configured to allow the second network node to access the network security information; and

    if the packet is not to be sent from the first network to the second network, performing further processing on the packet.

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