Method and apparatus for ingress filtering using security...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Packet header designating cryptographically protected data

Reexamination Certificate

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C713S151000

Reexamination Certificate

active

07827402

ABSTRACT:
A method and apparatus for ingress filtering using security group information are disclosed. The method includes performing access control processing on a packet and sending access control information to an ingress node of the packet in response to the access control processing. The access control information includes security group information and an address of a network node. The security group information identifies a security group. The network node is a member of the security group and is a destination of the packet.

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