A TCP Authentication Option Extension for NAT Traversal, July 2013
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This document describes an extension to the TCP Authentication Option (TCP-AO) to support its use over connections that pass through Network Address Translators and/or Network Address and Port Translators (NATs/NAPTs). This extension changes the data used to compute traffic keys, but it does not alter TCP-AO's packet processing or key generation algorithms.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.