DHCPv6 Options for configuration of Softwire Address and Port Mapped Clients
draft-ietf-softwire-map-dhcp-04

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Last updated 2013-07-15
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Softwire WG                                                 T. Mrugalski
Internet-Draft                                                       ISC
Intended status: Standards Track                                 X. Deng
Expires: January 16, 2014
                                                                O. Troan
                                                                   Cisco
                                                                  C. Bao
                                                     Tsinghua University
                                                             W. Dec, Ed.
                                                                   Cisco
                                                                 L. Yeah
                                                 Freelancer Technologies
                                                           July 15, 2013

  DHCPv6 Options for configuration of Softwire Address and Port Mapped
                                Clients
                    draft-ietf-softwire-map-dhcp-04

Abstract

   This document specifies DHCPv6 options, termed Softwire46 options,
   for the provisioning of Softwire46 Customer Edge (CE) devices.
   Softwire46 is a collective term used to refer to architectures based
   on the notion of IPv4 Address+Port (A+P) for providing IPv4
   connectivity across an IPv6 network, as specified by the IETF
   Softwires Working Group, including those where the IPv4 A+P
   parameters are optionally derived from the CE's IPv6 network prefix
   by algorithmic means.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   Internet-Drafts are draft documents valid for a maximum of six months
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 16, 2014.

Mrugalski, et al.       Expires January 16, 2014                [Page 1]
Internet-Draft         DHCPv6 for Softwire A+P CEs             July 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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Conventions  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Softwire46 Service Information . . . . . . . . . . . . . . . .  3
   4.  DHCPv6 Softwire46 Options  . . . . . . . . . . . . . . . . . .  4
     4.1.  Softwire46 Options Cardinality . . . . . . . . . . . . . .  4
     4.2.  Softwire46 Container Option  . . . . . . . . . . . . . . .  4
     4.3.  S46 Basic Rule Option  . . . . . . . . . . . . . . . . . .  5
     4.4.  S46 Forwarding Rule Option . . . . . . . . . . . . . . . .  6
     4.5.  S46 Port Parameters Option . . . . . . . . . . . . . . . .  8
     4.6.  Definition of Alternative Port Paramaters Option . . . . .  8
   5.  DHCPv6 Server Behavior . . . . . . . . . . . . . . . . . . . .  9
   6.  DHCPv6 Client Behavior . . . . . . . . . . . . . . . . . . . .  9
     6.1.  Processing of information by clients supporting MAP  . . . 10
   7.  DHCPv6 Deployment Considerations . . . . . . . . . . . . . . . 11
   8.  S46 Options Examples . . . . . . . . . . . . . . . . . . . . . 12
     8.1.  Basic Rule with no embedded address bits and no IPv4
           address sharing  . . . . . . . . . . . . . . . . . . . . . 12
     8.2.  Basic Rule Option Example with shared addressing and
           MAP  . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
     8.3.  Forwarding Rule Option Example with MAP mesh mode  . . . . 13
     8.4.  Basic Rule Option Example with MAP and explicit PSID . . . 14
     8.5.  Forwarding Rule Option example for MAP-T DMR prefix  . . . 16
   9.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 16
   10. Security Considerations  . . . . . . . . . . . . . . . . . . . 16
   11. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 17
   12. References . . . . . . . . . . . . . . . . . . . . . . . . . . 17
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