Learn NAT64 PREFIX64s using PCP

Document Type Replaced Internet-Draft (individual)
Author Mohamed Boucadair 
Last updated 2013-03-12 (latest revision 2012-09-12)
Replaced by RFC 7225, RFC 7225
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IESG IESG state Replaced by draft-ietf-pcp-nat64-prefix64, draft-ietf-pcp-nat64-prefix64
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines a new PCP Option/OpCode to learn the Prefix64(s) used by a PCP-controlled NAT64 device to build IPv4- embedded IPv6 addresses. This Option/OpCode is needed for successful communications when IPv4 addresses are used in referrals (e.g., SIP).


Mohamed Boucadair (mohamed.boucadair@orange.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)