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Basic Requirements for IPv6 Customer Edge Routers
RFC 7084

Internet Engineering Task Force (IETF)                          H. Singh
Request for Comments: 7084                                     W. Beebee
Obsoletes: 6204                                      Cisco Systems, Inc.
Category: Informational                                        C. Donley
ISSN: 2070-1721                                                CableLabs
                                                                B. Stark
                                                                    AT&T
                                                           November 2013

           Basic Requirements for IPv6 Customer Edge Routers

Abstract

   This document specifies requirements for an IPv6 Customer Edge (CE)
   router.  Specifically, the current version of this document focuses
   on the basic provisioning of an IPv6 CE router and the provisioning
   of IPv6 hosts attached to it.  The document also covers IP transition
   technologies.  Two transition technologies in RFC 5969's IPv6 Rapid
   Deployment on IPv4 Infrastructures (6rd) and RFC 6333's Dual-Stack
   Lite (DS-Lite) are covered in the document.  The document obsoletes
   RFC 6204.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   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).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc7084.

Singh, et al.                 Informational                     [Page 1]
RFC 7084               IPv6 CE Router Requirements         November 2013

Copyright Notice

   Copyright (c) 2013 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
   (http://trustee.ietf.org/license-info) 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.

Table of Contents

   1. Introduction ....................................................3
      1.1. Requirements Language ......................................3
   2. Terminology .....................................................4
   3. Architecture ....................................................5
      3.1. Current IPv4 End-User Network Architecture .................5
      3.2. IPv6 End-User Network Architecture .........................5
           3.2.1. Local Communication .................................7
   4. Requirements ....................................................7
      4.1. General Requirements .......................................7
      4.2. WAN-Side Configuration .....................................8
      4.3. LAN-Side Configuration ....................................12
      4.4. Transition Technologies Support ...........................14
           4.4.1. 6rd ................................................14
           4.4.2. Dual-Stack Lite (DS-Lite) ..........................15
      4.5. Security Considerations ...................................16
   5. Acknowledgements ...............................................17
   6. Contributors ...................................................17
   7. References .....................................................18
      7.1. Normative References ......................................18
      7.2. Informative References ....................................20

Singh, et al.                 Informational                     [Page 2]
RFC 7084               IPv6 CE Router Requirements         November 2013

1.  Introduction

   This document defines basic IPv6 features for a residential or small-
   office router, referred to as an "IPv6 CE router", in order to
   establish an industry baseline for features to be implemented on such
   a router.

   These routers typically also support IPv4.

   Mixed environments of dual-stack hosts and IPv6-only hosts (behind
   the CE router) can be more complex if the IPv6-only devices are using

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