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Proxy Mobile IPv6 (PMIPv6) Localized Routing Problem Statement
RFC 6279

Internet Engineering Task Force (IETF)                   M. Liebsch, Ed.
Request for Comments: 6279                                           NEC
Category: Informational                                         S. Jeong
ISSN: 2070-1721                                                     ETRI
                                                                   Q. Wu
                                                                  Huawei
                                                               June 2011

     Proxy Mobile IPv6 (PMIPv6) Localized Routing Problem Statement

Abstract

   Proxy Mobile IPv6 is the IETF Standard for network-based mobility
   management.  In Proxy Mobile IPv6, mobile nodes are topologically
   anchored at a Local Mobility Anchor, which forwards all data for
   registered mobile nodes.  The setup and maintenance of localized
   routing, which allows forwarding of data packets between two mobile
   nodes' Mobility Access Gateways without involvement of their Local
   Mobility Anchor in forwarding, is not considered.  This document
   describes the problem space of localized routing in Proxy Mobile
   IPv6.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   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).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see 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/rfc6279.

Liebsch, et al.               Informational                     [Page 1]
RFC 6279               PMIPv6 Localized Routing PS             June 2011

Copyright Notice

   Copyright (c) 2011 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
   3. Problem Statement for Localized Routing in PMIPv6 ...............4
      3.1. General Observation ........................................4
      3.2. Use Cases Analysis .........................................5
      3.3. IPv4 Considerations ........................................8
           3.3.1. Localized Routing for Communication between
                  IPv4 Home Addresses .................................8
           3.3.2. IPv4 Transport Network Considerations ...............9
   4. Functional Requirements for Localized Routing ...................9
   5. Roaming Considerations .........................................10
   6. Security Considerations ........................................11
   7. Acknowledgments ................................................12
   8. References .....................................................13
      8.1. Normative References ......................................13
      8.2. Informative References ....................................13

1.  Introduction

   The IETF has specified Proxy Mobile IPv6 (PMIPv6) [RFC5213] as the
   base protocol for network-based localized mobility management
   (NetLMM).  The scope of the base protocol covers the setup and
   maintenance of a tunnel between a Mobile Node's (MN's) Mobile Access
   Gateway (MAG) and its selected Local Mobility Anchor (LMA).  Data
   packets will always traverse the MN's MAG and its LMA, irrespective
   of the location of the MN's remote communication endpoint.  Even
   though an MN may be attached to the same MAG or a different MAG as
   its Correspondent Node (CN) within the same provider domain, packets
   being associated with their communication will traverse the MN's and
   the CN's LMA, which can be located topologically far away from the
   MN's and the CN's MAG or even in a separate provider domain.

Liebsch, et al.               Informational                     [Page 2]

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