Method and apparatus for a distributed firewall

Details Method and apparatus for a distributed firewall Method and apparatus for a distributed firewall

2006-05-23

2006-05-23

Moise, Emmanuel L. (Department: 2137)

Information security

Access control or authentication

Network

C709S225000, C709S226000

Reexamination Certificate

active

07051365

ABSTRACT:
A method and apparatus for a implementing a distributed firewall is described. A packet filter processor receives a packet sent from a first device to a second device. The packet filter processor authenticates an identifier for the packet. For example, authentication could be performed using a cryptographically-verifiable identifier. The packet filter processor determines whether to send the packet to the second device, based on the authentication and a set of policy rules. The packet filter processor sends the packet to the second device in accordance with the determination.

REFERENCES:
patent: 5606668 (1997-02-01), Shwed
patent: 6148342 (2000-11-01), Ho
patent: 6304973 (2001-10-01), Williams
patent: 6307837 (2001-10-01), Ichikawa et al.
patent: 6507908 (2003-01-01), Caronni

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