DHCPv6 Route Options
draft-ietf-mif-dhcpv6-route-option-04

The information below is for an old version of the document
Document Type Active Internet-Draft (mif WG)
Last updated 2012-02-24 (latest revision 2011-09-10)
Stream IETF
Intended RFC status (None)
Formats plain text pdf html bibtex
Stream WG state WG Document
Document shepherd None
IESG IESG state I-D Exists
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)
Network Working Group                                             W. Dec
Internet-Draft                                             Cisco Systems
Intended status: Standards Track                       T. Mrugalski, Ed.
Expires: August 27, 2012                                             ISC
                                                                  T. Sun
                                                            China Mobile
                                                             B. Sarikaya
                                                              Huawei USA
                                                       February 24, 2012

                          DHCPv6 Route Options
                 draft-ietf-mif-dhcpv6-route-option-04

Abstract

   This document describes DHCPv6 Route Options for provisioning IPv6
   routes on DHCPv6 client nodes.  This is expected to improve the
   ability of an operator to configure and influence a nodes' ability to
   pick an appropriate route to a destination when this node is multi-
   homed and where other means of route configuration may be
   impractical.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on August 27, 2012.

Copyright Notice

Dec, et al.              Expires August 27, 2012                [Page 1]
Internet-Draft            DHCPv6 Route Options             February 2012

   Copyright (c) 2012 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
   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.  Problem overview . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Motivation . . . . . . . . . . . . . . . . . . . . . . . . . .  4
     3.1.  Use cases  . . . . . . . . . . . . . . . . . . . . . . . .  4
     3.2.  Raised concerns  . . . . . . . . . . . . . . . . . . . . .  9
       3.2.1.  Vendor-specific option . . . . . . . . . . . . . . . .  9
       3.2.2.  Unicast RA . . . . . . . . . . . . . . . . . . . . . .  9
       3.2.3.  DHCPv6 requires client to use one server . . . . . . . 10
       3.2.4.  Use VLANs  . . . . . . . . . . . . . . . . . . . . . . 10
   4.  DHCPv6 Based Solution  . . . . . . . . . . . . . . . . . . . . 11
     4.1.  Default route configuration  . . . . . . . . . . . . . . . 11
     4.2.  Configuring on-link routes . . . . . . . . . . . . . . . . 11
     4.3.  Deleting obsolete route  . . . . . . . . . . . . . . . . . 11
     4.4.  Applicability to routers . . . . . . . . . . . . . . . . . 12
     4.5.  Updating Routing Information . . . . . . . . . . . . . . . 12
     4.6.  Limitations  . . . . . . . . . . . . . . . . . . . . . . . 13
   5.  DHCPv6 Route Options . . . . . . . . . . . . . . . . . . . . . 13
     5.1.  Next Hop Option Format . . . . . . . . . . . . . . . . . . 14
     5.2.  Route Prefix Option Format . . . . . . . . . . . . . . . . 15
   6.  DHCPv6 Server Behavior . . . . . . . . . . . . . . . . . . . . 16
   7.  DHCPv6 Client Behavior . . . . . . . . . . . . . . . . . . . . 17
     7.1.  Conflict resolution  . . . . . . . . . . . . . . . . . . . 18
   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 18
   9.  Security Considerations  . . . . . . . . . . . . . . . . . . . 19
   10. Contributors and Acknowledgements  . . . . . . . . . . . . . . 19
   11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 20
     11.1. Normative References . . . . . . . . . . . . . . . . . . . 20
     11.2. Informative References . . . . . . . . . . . . . . . . . . 20
Show full document text