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Diameter Support for Proxy Mobile IPv6 Localized Routing
RFC 7156

Internet Engineering Task Force (IETF)                           G. Zorn
Request for Comments: 7156                                   Network Zen
Category: Standards Track                                          Q. Wu
ISSN: 2070-1721                                                   Huawei
                                                             J. Korhonen
                                                                Broadcom
                                                              April 2014

        Diameter Support for Proxy Mobile IPv6 Localized Routing

Abstract

   In Proxy Mobile IPv6, packets received from a Mobile Node (MN) by the
   Mobile Access Gateway (MAG) to which it is attached are typically
   tunneled to a Local Mobility Anchor (LMA) for routing.  The term
   "localized routing" refers to a method by which packets are routed
   directly between an MN's MAG and the MAG of its Correspondent Node
   (CN) without involving any LMA.  In a Proxy Mobile IPv6 deployment,
   it may be desirable to control the establishment of localized routing
   sessions between two MAGs in a Proxy Mobile IPv6 domain by requiring
   that the session be authorized.  This document specifies how to
   accomplish this using the Diameter protocol.

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/rfc7156.

Zorn, et al.                 Standards Track                    [Page 1]
RFC 7156            PMIPv6 Localized Routing Support          April 2014

Copyright Notice

   Copyright (c) 2014 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
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   (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.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Solution Overview . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Attribute Value Pair Used in This Document  . . . . . . . . .   4
     4.1.  User-Name AVP . . . . . . . . . . . . . . . . . . . . . .   5
     4.2.  PMIP6-IPv4-Home-Address AVP . . . . . . . . . . . . . . .   5
     4.3.  MIP6-Home-Link-Prefix AVP . . . . . . . . . . . . . . . .   5
     4.4.  MIP6-Feature-Vector AVP . . . . . . . . . . . . . . . . .   5
   5.  Example Signaling Flows for Localized Routing Service
       Authorization . . . . . . . . . . . . . . . . . . . . . . . .   6
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   8.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  10
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  10
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  10
     10.2.  Informative References . . . . . . . . . . . . . . . . .  11

Zorn, et al.                 Standards Track                    [Page 2]
RFC 7156            PMIPv6 Localized Routing Support          April 2014

1.  Introduction

   Proxy Mobile IPv6 (PMIPv6) [RFC5213] allows the Mobile Access Gateway
   (MAG) to optimize media delivery by locally routing packets from a
   Mobile Node (MN) to a Correspondent Node (CN) that is locally
   attached to an access link connected to the same Mobile Access
   Gateway, avoiding tunneling them to the Mobile Node's Local Mobility
   Anchor (LMA).  This is referred to as "local routing" in RFC 5213
   [RFC5213].  However, this mechanism is not applicable to the typical
   scenarios in which the MN and CN are connected to different MAGs and
   are registered to the same LMA or different LMAs.  [RFC6279] takes

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