DHCPv6 Options for Mapping of Address and Port
draft-ietf-softwire-map-dhcp-03

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Softwire WG                                                 T. Mrugalski
Internet-Draft                                                       ISC
Intended status: Standards Track                                O. Troan
Expires: August 29, 2013                                          W. Dec
                                                                   Cisco
                                                                  C. Bao
                                                     Tsinghua University
                                                                  L. Yeh
                                                 Freelancer Technologies
                                                                 X. Deng
                                                       February 25, 2013

             DHCPv6 Options for Mapping of Address and Port
                    draft-ietf-softwire-map-dhcp-03

Abstract

   This document specifies DHCPv6 options for the provisioning of
   Mapping of Address and Port (MAP) Customer Edge (CE) devices, based
   on the MAP paramaters defined in [I-D.ietf-softwire-map].

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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   This Internet-Draft will expire on August 29, 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

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   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
   2.  Conventions  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  MAP Information  . . . . . . . . . . . . . . . . . . . . . . .  4
   4.  DHCPv6 MAP Options . . . . . . . . . . . . . . . . . . . . . .  4
     4.1.  MAP Options Cardinality  . . . . . . . . . . . . . . . . .  5
     4.2.  MAP Container Option . . . . . . . . . . . . . . . . . . .  5
     4.3.  MAP Rule Option  . . . . . . . . . . . . . . . . . . . . .  6
     4.4.  MAP DMR Option . . . . . . . . . . . . . . . . . . . . . .  8
     4.5.  MAP Port Parameters Option . . . . . . . . . . . . . . . .  9
   5.  DHCPv6 Server Behavior . . . . . . . . . . . . . . . . . . . . 10
   6.  DHCPv6 Client Behavior . . . . . . . . . . . . . . . . . . . . 11
   7.  Usage of flags and paramaters  . . . . . . . . . . . . . . . . 11
   8.  Deployment considerations  . . . . . . . . . . . . . . . . . . 12
   9.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 13
   10. Security Considerations  . . . . . . . . . . . . . . . . . . . 13
   11. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 13
   12. References . . . . . . . . . . . . . . . . . . . . . . . . . . 14
     12.1. Normative References . . . . . . . . . . . . . . . . . . . 14
     12.2. Informative References . . . . . . . . . . . . . . . . . . 14
   Appendix A.  MAP Options Examples  . . . . . . . . . . . . . . . . 15
     A.1.  Example 1: BMR Option  . . . . . . . . . . . . . . . . . . 15
     A.2.  Example 2: DMR Option  . . . . . . . . . . . . . . . . . . 16
     A.3.  Example 3: 1:1 Rule with No Address Sharing  . . . . . . . 17
     A.4.  Example 4: 1:1 Rule with Address Sharing . . . . . . . . . 18
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 18

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1.  Introduction

   Mapping of Address and Port (MAP) defined in [I-D.ietf-softwire-map]
   is a mechanism for providing IPv4 connectivity service to end users
   over a service provider's IPv6 network, allowing for shared or
   dedicated IPv4 addressing.  It consists of a set of one or more MAP
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