IANA Reserved IPv4 Prefix for IPv6 Transition

Document Type Expired Internet-Draft (individual)
Last updated 2010-09-24
Stream (None)
Intended RFC status (None)
Expired & archived
plain text pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document specifies the use of a reserved IANA IPv4 address allocation to support the deployment of IPv6 transition technologies and IPv4 address sharing technologies post IPv4 exhaustion. Service providers are in the process of implementing IPv6 support by providing dual-stack IPv4 and IPv6 services to their end-users. One method for continued support of the IPv4 Internet post IANA IPv4 depletion is through the use of a carrier-provided NAT444 infrastructure. Another mechanism used to transition to IPv6 is an IPv6-in-IPv4 tunnel such as IPv6 Rapid Deployment (6RD). This document details the use of an IANA reserved address block for these purposes.


Jason Weil (jason.weil@cox.com)
Victor Kuarsingh (victor.kuarsingh@rogers.com)
Chris Donley (c.donley@cablelabs.com)

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