Detecting network topology when negotiating IPsec security...

Electrical computers and digital processing systems: multicomput – Computer-to-computer data addressing

Reexamination Certificate

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C726S011000, C726S014000, C726S002000, C726S005000, C709S225000, C709S232000, C709S237000

Reexamination Certificate

active

07962652

ABSTRACT:
The invention determines if a security association (SA) extends end-to-end between a source node originating a connection and a destination node. In such a case, there will be no ambiguities in routing due to network address translation, and the SA is allowed. In the preferred embodiment, both end nodes of a security connection test themselves and the remote node for gateway status to determine if any ambiguities might exist in network routing due to the presence of a network address translator.

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