Transition Requirements for IPv6 Customer Edge Routers
draft-palet-v6ops-rfc7084-bis-transition-00

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IPv6 Operations (v6ops)                                J. Palet Martinez
Internet-Draft                                         Consulintel, S.L.
Intended status: Informational                             June 11, 2017
Expires: December 13, 2017

         Transition Requirements for IPv6 Customer Edge Routers
              draft-palet-v6ops-rfc7084-bis-transition-00

Abstract

   This document specifies the transition requirements for an IPv6
   Customer Edge (CE) router.  Specifically, this document extends the
   "Minimum Requirements for IPv6-only Customer Edge Routers" (draft-
   palet-v6ops-rfc7084-bis2) in order to allow the provisioning of IPv6
   transition services for the hosts attached to it and the support of
   HNCP ([RFC7788]) for automated provisioning of downstream routers.
   The document covers several transition technologies, either for
   delivering IPv6 in IPv4-only access networks and specially for
   delivering IPv4 "as a service" as required in a world where IPv4
   addresses are no longer available, so hosts in the customer LANs with
   IPv4-only or IPv6-only applications or devices, requiring to
   communicate with IPv4-only services at the Internet, are able to do
   so.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on December 13, 2017.

Copyright Notice

   Copyright (c) 2017 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

Palet Martinez          Expires December 13, 2017               [Page 1]
Internet-Draft   IPv6 Transition CE Router Requirements        June 2017

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Usage Scenarios . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Architecture  . . . . . . . . . . . . . . . . . . . . . . . .   5
     4.1.  Current IPv4 End-User Network Architecture  . . . . . . .   5
     4.2.  IPv6 End-User Network Architecture  . . . . . . . . . . .   6
       4.2.1.  Local Communication . . . . . . . . . . . . . . . . .   8
   5.  Requirements  . . . . . . . . . . . . . . . . . . . . . . . .   8
     5.1.  General Requirements  . . . . . . . . . . . . . . . . . .   8
     5.2.  WAN-Side Configuration  . . . . . . . . . . . . . . . . .   8
     5.3.  LAN-Side Configuration  . . . . . . . . . . . . . . . . .   8
     5.4.  Transition Technologies Support . . . . . . . . . . . . .   8
       5.4.1.  IPv4 Service Continuity in Customer LANs  . . . . . .   9
         5.4.1.1.  464XLAT . . . . . . . . . . . . . . . . . . . . .   9
         5.4.1.2.  Dual-Stack Lite (DS-Lite) . . . . . . . . . . . .   9
         5.4.1.3.  Lightweight 4over6 (lw4o6)  . . . . . . . . . . .  10
         5.4.1.4.  MAP-E . . . . . . . . . . . . . . . . . . . . . .  11
         5.4.1.5.  MAP-T . . . . . . . . . . . . . . . . . . . . . .  11
       5.4.2.  Support of IPv6 in IPv4-only WAN access . . . . . . .  12
         5.4.2.1.  6in4  . . . . . . . . . . . . . . . . . . . . . .  12
         5.4.2.2.  6rd . . . . . . . . . . . . . . . . . . . . . . .  13
     5.5.  IPv4 Multicast Support  . . . . . . . . . . . . . . . . .  14
     5.6.  Security Considerations . . . . . . . . . . . . . . . . .  14
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  14
   7.  ANNEX A: Code Considerations  . . . . . . . . . . . . . . . .  15
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  15
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