Independent Submission K. Leung
Request for Comments: 5563 G. Dommety
Category: Informational Cisco Systems
ISSN: 2070-1721 P. Yegani
Juniper Networks
K. Chowdhury
Starent Networks
February 2010
WiMAX Forum / 3GPP2 Proxy Mobile IPv4
Abstract
Mobile IPv4 is a standard mobility protocol that enables an IPv4
device to move among networks while maintaining its IP address. The
mobile device has the Mobile IPv4 client function to signal its
location to the routing anchor, known as the Home Agent. However,
there are many IPv4 devices without such capability due to various
reasons. This document describes Proxy Mobile IPv4 (PMIPv4), a
scheme based on having the Mobile IPv4 client function in a network
entity to provide mobility support for an unaltered and mobility-
unaware IPv4 device. This document also describes a particular
application of PMIPv4 as specified in the WiMAX Forum and another
application that is to be adopted in 3GPP2.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This is a contribution to the RFC Series, independently of any other
RFC stream. The RFC Editor has chosen to publish this document at
its discretion and makes no statement about its value for
implementation or deployment. Documents approved for publication by
the RFC Editor are not 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/rfc5563.
Leung, et al. Informational [Page 1]
RFC 5563 WiMAX Forum / 3GPP2 PMIPv4 February 2010
Copyright Notice
Copyright (c) 2010 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.
Table of Contents
1. Introduction ....................................................3
2. Conventions Used in This Document ...............................4
3. Benefits of Proxy Mobile IPv4 ...................................6
4. Overview of Proxy Mobile IPv4 ...................................7
4.1. Mobility Signaling for Mobile Device .......................7
4.1.1. Proxy Registration during Initial Network
Attachment ..........................................8
4.1.2. Proxy Registration Renewal .........................11
4.1.3. Proxy Handover Support .............................12
4.1.4. Resource Cleanup ...................................13
4.2. Establishment of a Bi-Directional Tunnel ..................14
4.2.1. Packet Forwarding ..................................14
4.2.2. Broadcast and Multicast ............................14
4.2.3. Forwarding between Devices on the Same PMA .........15
4.3. Security Association between the PMA and the HA ...........15
4.4. Registration Sequencing ...................................15
4.5. Mobile Device Interface Configuration .....................16
4.6. Dynamic HA Discovery ......................................16
5. Proxy Mobile IPv4 Extensions ...................................16
5.1. PMIPv4 Per-Node Authentication Method Extension ...........17
5.2. Proxy Mobile IPv4 Interface ID Extension ..................18
5.3. Proxy Mobile IPv4 Device ID Extension .....................18
5.4. Proxy Mobile IPv4 Subscriber ID Extension .................19
5.5. PMIPv4 Access Technology Type Extension ...................20
6. Appearance of Being at Home Network ............................22
6.1. ARP Considerations ........................................22
6.2. ICMP Considerations .......................................23
6.3. DHCP Considerations .......................................23
6.4. PPP IPCP Considerations ...................................24
6.5. Link-Local Multicast and Broadcast Considerations .........24
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