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Reserved IPv6 Interface Identifier for Proxy Mobile IPv6
RFC 6543

Document type: RFC - Proposed Standard (May 2012)
Updates RFC 5213
Document stream: IETF
Last updated: 2013-02-12
Other versions: plain text, pdf, html

IETF State: (None)
Consensus: Unknown
Document shepherd: No shepherd assigned

IESG State: RFC 6543 (Proposed Standard)
Responsible AD: Brian Haberman
Send notices to: sgundave@cisco.com, draft-gundavelli-v6ops-pmipv6-address-reservations@tools.ietf.org

Internet Engineering Task Force (IETF)                     S. Gundavelli
Request for Comments: 6543                                         Cisco
Updates: 5213                                                   May 2012
Category: Standards Track
ISSN: 2070-1721

        Reserved IPv6 Interface Identifier for Proxy Mobile IPv6

Abstract

   Proxy Mobile IPv6 (RFC 5213) requires that all mobile access gateways
   use a fixed link-local address and a fixed link-layer address on any
   of their access links that they share with mobile nodes.  This
   requirement was intended to ensure that a mobile node does not detect
   any change with respect to its Layer 3 attachment, even after it
   roams from one mobile access gateway to another.  In the absence of
   any reserved addresses for this use, coordination across vendors and
   manual configuration of these addresses on all of the mobility
   elements in a Proxy Mobile IPv6 domain are required.  This document
   attempts to simplify this operational requirement by making a
   reservation for special addresses that can be used for this purpose.
   This document also updates RFC 5213.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc6543.

Gundavelli                   Standards Track                    [Page 1]
RFC 6543              Reserved IPv6 IID for PMIPv6              May 2012

Copyright Notice

   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 ....................................................2
   2. Conventions and Terminology .....................................3
      2.1. Conventions ................................................3
      2.2. Terminology ................................................3
   3. IANA Considerations .............................................4
   4. Security Considerations .........................................4
   5. Acknowledgements ................................................4
   6. References ......................................................5
      6.1. Normative References .......................................5
      6.2. Informative References .....................................5

1.  Introduction

   Proxy Mobile IPv6 [RFC5213] is a network-based mobility management
   protocol that enables IP mobility support for a mobile node without
   requiring its participation in any mobility-related signaling.  The
   mobility elements in the network ensure that the mobile node does not
   detect any change with respect to its Layer 3 attachment, even after
   it roams from one mobile access gateway to another and changes its
   point of attachment in the network.  All mobile access gateways in a
   Proxy Mobile IPv6 domain use a fixed link-local address and a fixed
   link-layer address on any of their access links that they share with
   the mobile nodes.  This essentially ensures that a mobile node, after
   performing a handoff, does not detect any change with respect to the
   IP network configuration.

Gundavelli                   Standards Track                    [Page 2]
RFC 6543              Reserved IPv6 IID for PMIPv6              May 2012

   Although the base Proxy Mobile IPv6 specification [RFC5213] requires
   the use of a fixed link-local and a fixed link-layer address, it did
   not reserve any specific addresses for this purpose.  This is proving
   to be an operational challenge in deployments involving multi-vendor
   equipment.  To address this problem, this specification makes the
   following two reservations.

   1.  This specification reserves one Ethernet unicast address,
       00-00-5E-00-52-13, for use with Proxy Mobile IPv6.  This reserved

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