Analysis of solution proposals for hosts to learn NAT64 prefix

Document Type Replaced Internet-Draft (individual)
Authors Jouni Korhonen  , Teemu Savolainen 
Last updated 2011-05-27 (latest revision 2011-02-22)
Replaced by RFC 7051
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Intended RFC status (None)
Expired & archived
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Stream Stream state (No stream defined)
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IESG IESG state Replaced by draft-ietf-behave-nat64-learn-analysis
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Hosts and applications may benefit from the knowledge if an IPv6 address is synthesized, which would mean a NAT64 is used to reach the IPv4 network or Internet. This document analyses a number of proposed solutions for communicating whether the synthesis is taking place, used address format, and the IPv6 prefix used by the NAT64 and DNS64. This enables both NAT64 avoidance and intentional utilization by allowing local IPv6 address synthesis.


Jouni Korhonen (
Teemu Savolainen (

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