Proxy Mobile IPv6
RFC 5213
Network Working Group S. Gundavelli, Ed.
Request for Comments: 5213 K. Leung
Category: Standards Track Cisco
V. Devarapalli
Wichorus
K. Chowdhury
Starent Networks
B. Patil
Nokia
August 2008
Proxy Mobile IPv6
Status of This Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Abstract
Network-based mobility management enables IP mobility for a host
without requiring its participation in any mobility-related
signaling. The network is responsible for managing IP mobility on
behalf of the host. The mobility entities in the network are
responsible for tracking the movements of the host and initiating the
required mobility signaling on its behalf. This specification
describes a network-based mobility management protocol and is
referred to as Proxy Mobile IPv6.
Gundavelli, et al. Standards Track [Page 1]
RFC 5213 Proxy Mobile IPv6 August 2008
Table of Contents
1. Introduction ................................................. 4
2. Conventions and Terminology ................................. 5
2.1. Conventions Used in This Document ....................... 5
2.2. Terminology ............................................. 5
3. Proxy Mobile IPv6 Protocol Overview ......................... 9
4. Proxy Mobile IPv6 Protocol Security ......................... 15
4.1. Peer Authorization Database (PAD) Example Entries ....... 16
4.2. Security Policy Database (SPD) Example Entries ........... 17
5. Local Mobility Anchor Operation ............................. 17
5.1. Extensions to Binding Cache Entry Data Structure ......... 18
5.2. Supported Home Network Prefix Models ..................... 19
5.3. Signaling Considerations ................................. 20
5.3.1. Processing Proxy Binding Updates ..................... 20
5.3.2. Initial Binding Registration (New Mobility Session) .. 22
5.3.3. Binding Lifetime Extension (No Handoff) ............. 23
5.3.4. Binding Lifetime Extension (After Handoff) ........... 24
5.3.5. Binding De-Registration ............................. 24
5.3.6. Constructing the Proxy Binding Acknowledgement
Message ............................................. 25
5.4. Multihoming Support ..................................... 27
5.4.1. Binding Cache Entry Lookup Considerations ........... 28
5.5. Timestamp Option for Message Ordering ................... 34
5.6. Routing Considerations ................................... 37
5.6.1. Bi-Directional Tunnel Management ..................... 37
5.6.2. Forwarding Considerations ........................... 38
5.6.3. Explicit Congestion Notification (ECN)
Considerations for Proxy Mobile IPv6 Tunnels ......... 39
5.7. Local Mobility Anchor Address Discovery ................. 40
5.8. Mobile Prefix Discovery Considerations ................... 40
5.9. Route Optimization Considerations ....................... 41
6. Mobile Access Gateway Operation ............................. 41
6.1. Extensions to Binding Update List Entry Data Structure ... 42
6.2. Mobile Node's Policy Profile ............................. 43
6.3. Supported Access Link Types ............................. 44
6.4. Supported Address Configuration Modes ................... 44
6.5. Access Authentication and Mobile Node Identification ..... 45
6.6. Acquiring Mobile Node's Identifier ....................... 45
6.7. Home Network Emulation ................................... 46
6.8. Link-local and Global Address Uniqueness ................. 46
6.9. Signaling Considerations ................................. 48
6.9.1. Binding Registrations ............................... 48
6.9.2. Router Solicitation Messages ......................... 56
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