System and method for virtual private network network...

Details System and method for virtual private network network... System and method for virtual private network network...

2006-01-31

2006-01-31

Vu, Huy D. (Department: 2665)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S466000

Reexamination Certificate

active

06993037

ABSTRACT:
A communication network includes a plurality of nodes, selectively including a client, a remote gateway Internet service provider, the Internet, a local enterprise gateway, and an enterprise internal network. A local coincident endpoint is established at the local gateway for an outer connection with a remote node and an inner connection with the same or a different remote node. Nested traffic received at the gateway on the outer connection is decapsulated and then source-in NATed. Traffic received at the gateway for transmission on the outer connection is first source-in NATed, and then encapsulated for communication on the outer connection.

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P. Srisuresh. “RFC 2709—Security Model with Tunnel-mode IPsec for NAT Domains”. Network Working Group, RFC 2709. Oct. 1999. pp. 1-9.

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