RFC 3633 (rfc3633) - Page 1 of 19

IPv6 Prefix Options for Dynamic Host Configuration Protocol (DHCP) version 6

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Network Working Group                                           O. Troan
Request for Comments: 3633                                      R. Droms
Category: Standards Track                                  Cisco Systems
                                                           December 2003


                        IPv6 Prefix Options for
          Dynamic Host Configuration Protocol (DHCP) version 6

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2003).  All Rights Reserved.

Abstract

   The Prefix Delegation options provide a mechanism for automated
   delegation of IPv6 prefixes using the Dynamic Host Configuration
   Protocol (DHCP).  This mechanism is intended for delegating a long-
   lived prefix from a delegating router to a requesting router, across
   an administrative boundary, where the delegating router does not
   require knowledge about the topology of the links in the network to
   which the prefixes will be assigned.

Table of Contents

   1.   Introduction . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.   DHCPv6 specification dependency  . . . . . . . . . . . . . .   3
   3.   Terminology  . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.   Requirements . . . . . . . . . . . . . . . . . . . . . . . .   3
   5.   Model and Applicability  . . . . . . . . . . . . . . . . . .   3
        5.1.  Example network architecture . . . . . . . . . . . . .   4
   6.   Identity Association for Prefix Delegation . . . . . . . . .   5
   7.   Overview of DHCP with Prefix Delegation  . . . . . . . . . .   6
   8.   Interface Selection  . . . . . . . . . . . . . . . . . . . .   7
   9.   Identity Association for Prefix Delegation Option  . . . . .   7
   10.  IA_PD Prefix option  . . . . . . . . . . . . . . . . . . . .   9
   11.  Delegating Router Solicitation . . . . . . . . . . . . . . .  11
        11.1. Requesting router behavior . . . . . . . . . . . . . .  11
        11.2. Delegating router behavior . . . . . . . . . . . . . .  11
   12.  Requesting router initiated prefix delegation  . . . . . . .  12



Troan & Droms               Standards Track
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