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IETF RFC 7050

2013 Edition, November 1, 2013

Complete Document

Discovery of the IPv6 Prefix Used for IPv6 Address Synthesis



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Product Details:

  • Revision: 2013 Edition, November 1, 2013
  • Published Date: November 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: Internet Engineering Task Force (IETF)
  • Page Count: 21
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This document describes a method for detecting the presence of DNS64 and for learning the IPv6 prefix used for protocol translation on an access network. The method depends on the existence of a well-known IPv4-only fully qualified domain name "ipv4only.arpa.". The information learned enables nodes to perform local IPv6 address synthesis and to potentially avoid NAT64 on dual-stack and multiinterface deployments.