Transition Requirements for IPv6 Customer Edge Routers
draft-palet-v6ops-rfc7084-bis-transition-01

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IPv6 Operations (v6ops)                                J. Palet Martinez
Internet-Draft                                         Consulintel, S.L.
Intended status: Informational                          October 17, 2017
Expires: April 20, 2018

         Transition Requirements for IPv6 Customer Edge Routers
              draft-palet-v6ops-rfc7084-bis-transition-01

Abstract

   This document specifies the transition requirements for an IPv6
   Customer Edge (CE) router.  Specifically, this document extends the
   "Basic Requirements for IPv6-only Customer Edge Routers" ([RFC7084])
   in order to allow the provisioning of IPv6 transition services for
   the hosts attached to it.  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

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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
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   (https://trustee.ietf.org/license-info) in effect on the date of

Palet Martinez           Expires April 20, 2018                 [Page 1]
Internet-Draft   IPv6 Transition CE Router Requirements     October 2017

   publication of this document.  Please review these documents
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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
   5.  Requirements  . . . . . . . . . . . . . . . . . . . . . . . .   8
     5.1.  General Requirements  . . . . . . . . . . . . . . . . . .   8
     5.2.  LAN-Side Configuration  . . . . . . . . . . . . . . . . .   8
     5.3.  Transition Technologies Support . . . . . . . . . . . . .   8
       5.3.1.  IPv4 Service Continuity in Customer LANs  . . . . . .   8
         5.3.1.1.  464XLAT . . . . . . . . . . . . . . . . . . . . .   8
         5.3.1.2.  Dual-Stack Lite (DS-Lite) . . . . . . . . . . . .   9
         5.3.1.3.  Lightweight 4over6 (lw4o6)  . . . . . . . . . . .  10
         5.3.1.4.  MAP-E . . . . . . . . . . . . . . . . . . . . . .  10
         5.3.1.5.  MAP-T . . . . . . . . . . . . . . . . . . . . . .  11
       5.3.2.  Support of IPv6 in IPv4-only WAN access . . . . . . .  11
         5.3.2.1.  6in4  . . . . . . . . . . . . . . . . . . . . . .  11
         5.3.2.2.  6rd . . . . . . . . . . . . . . . . . . . . . . .  12
     5.4.  IPv4 Multicast Support  . . . . . . . . . . . . . . . . .  14
     5.5.  Security Considerations . . . . . . . . . . . . . . . . .  14
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  14
   7.  ANNEX A: Code Considerations  . . . . . . . . . . . . . . . .  14
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  15
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  17
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  17

1.  Introduction

   This document defines basic IPv6 transition features for a
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