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.
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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
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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.
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