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 2014Copyright Notice
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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 20141. 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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