Method and an apparatus to identify security association of...

Details Method and an apparatus to identify security association of... Method and an apparatus to identify security association of...

2011-07-19

2011-07-19

Zand, Kambiz (Department: 2434)

Information security

Access control or authentication

Network

Reexamination Certificate

active

07984495

ABSTRACT:
A method and an apparatus to identify security association (SA) of virtual private network (VPN) tunnels are disclosed. In one embodiment, the method includes generating a free list having a first plurality of numbers, and randomizing the free list, wherein the first plurality of numbers in the randomized free list are possible candidates of a tunnel index for a security association (SA) of a virtual private network (VPN) tunnel between a first private network and a second private network during negotiation to establish the VPN tunnel, wherein the tunnel index is included in packets sent via the VPN tunnel. Other embodiments have been claimed and described.

REFERENCES:
patent: 6711159 (2004-03-01), Grabelsky et al.
patent: 7107464 (2006-09-01), Shapira et al.
patent: 2005/0097259 (2005-05-01), Zievers
patent: 2005/0108464 (2005-05-01), Zievers
patent: 2005/0111353 (2005-05-01), Zievers

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