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OSPFv3 over IPv4 for IPv6 Transition (RFC7949) Disclosure Number: IPCOM000247163D
Original Publication Date: 2016-Aug-01
Included in the Prior Art Database: 2016-Aug-11
Document File: 22 page(s) / 26K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

I. Chen: AUTHOR [+3]


Using OSPFv3 [RFC5340] over IPv4 [RFC791] with the existing OSPFv3 address family extension can simplify transition from an IPv4-only routing domain to an IPv6 [RFC2460] or dual-stack routing domain. Dual-stack routing protocols, such as the Border Gateway Protocol [RFC4271], have an advantage during the transition, because both IPv4 and IPv6 address families can be advertised using either IPv4 or IPv6 transport. Some IPv4-specific and IPv6-specific routing protocols share enough similarities in their protocol packet formats and protocol signaling that it is trivial to deploy an initial IPv6 routing domain by transporting the routing protocol over IPv4, thereby allowing IPv6 routing domains to be deployed and tested before decommissioning IPv4 and moving to an IPv6-only network.

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Internet Engineering Task Force (IETF)                           I. Chen Request for Comments: 7949                                      Ericsson Updates: 5838                                                  A. Lindem Category: Standards Track                                          Cisco ISSN: 2070-1721                                              R. Atkinson                                                               Consultant                                                              August 2016

                   OSPFv3 over IPv4 for IPv6 Transition


   This document defines a mechanism to use IPv4 to transport OSPFv3    packets.  Using OSPFv3 over IPv4 with the existing OSPFv3 Address    Family extension can simplify transition from an OSPFv2 IPv4-only    routing domain to an OSPFv3 dual-stack routing domain.  This document    updates RFC 5838 to support virtual links in the IPv4 unicast address    family when using OSPFv3 over IPv4.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal    Provisions Relating to IETF Documents    ( in effect on the date of    publication of this document.  Please review these documents    carefully, as they describe your rights and restrictions with respect    to this document.  Code Components extracted from this document must    include Simplified BSD License text as described in Section 4.e of    the Trust Legal Provisions and are provided without warranty as    described in the Simplified BSD License.

Chen, et al.                 Standards Track                    [Page 1]
 RFC 7949          OSPFv3 over IPv4 for IPv6 Transition       August 2016

 Table of Contents

   1. Introduction ....................................................2

      1.1. IPv4-Only Use Case .............