Mobility Support in IPv6
RFC 3775
| Document | Type |
RFC - Proposed Standard
(June 2004; No errata)
Obsoleted by RFC 6275
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 3775 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Thomas Narten | ||
| Send notices to | <proberts@megisto.com>, <gab@sun.com> | ||
Network Working Group D. Johnson
Request for Comments: 3775 Rice University
Category: Standards Track C. Perkins
Nokia Research Center
J. Arkko
Ericsson
June 2004
Mobility Support in 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.
Copyright Notice
Copyright (C) The Internet Society (2004).
Abstract
This document specifies a protocol which allows nodes to remain
reachable while moving around in the IPv6 Internet. Each mobile node
is always identified by its home address, regardless of its current
point of attachment to the Internet. While situated away from its
home, a mobile node is also associated with a care-of address, which
provides information about the mobile node's current location. IPv6
packets addressed to a mobile node's home address are transparently
routed to its care-of address. The protocol enables IPv6 nodes to
cache the binding of a mobile node's home address with its care-of
address, and to then send any packets destined for the mobile node
directly to it at this care-of address. To support this operation,
Mobile IPv6 defines a new IPv6 protocol and a new destination option.
All IPv6 nodes, whether mobile or stationary, can communicate with
mobile nodes.
Johnson, et al. Standard Track [Page 1]
RFC 3775 Mobility Support in IPv6 June 2004
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . 5
2. Comparison with Mobile IP for IPv4 . . . . . . . . . . . . 6
3. Terminology. . . . . . . . . . . . . . . . . . . . . . . . 7
3.1. General Terms . . . . . . . . . . . . . . . . . . . 8
3.2. Mobile IPv6 Terms . . . . . . . . . . . . . . . . . 10
4. Overview of Mobile IPv6. . . . . . . . . . . . . . . . . . 13
4.1. Basic Operation . . . . . . . . . . . . . . . . . . 13
4.2. New IPv6 Protocol . . . . . . . . . . . . . . . . . 15
4.3. New IPv6 Destination Option . . . . . . . . . . . . 17
4.4. New IPv6 ICMP Messages. . . . . . . . . . . . . . . 17
4.5. Conceptual Data Structure Terminology . . . . . . . 17
4.6. Site-Local Addressability . . . . . . . . . . . . . 18
5. Overview of Mobile IPv6 Security . . . . . . . . . . . . . 18
5.1. Binding Updates to Home Agents. . . . . . . . . . . 18
5.2. Binding Updates to Correspondent Nodes. . . . . . . 20
5.2.1. Node Keys . . . . . . . . . . . . . . . . . 20
5.2.2. Nonces. . . . . . . . . . . . . . . . . . . 20
5.2.3. Cookies and Tokens. . . . . . . . . . . . . 21
5.2.4. Cryptographic Functions . . . . . . . . . . 22
5.2.5. Return Routability Procedure. . . . . . . . 22
5.2.6. Authorizing Binding Management Messages . . 27
5.2.7. Updating Node Keys and Nonces . . . . . . . 29
5.2.8. Preventing Replay Attacks . . . . . . . . . 30
5.3. Dynamic Home Agent Address Discovery. . . . . . . . 30
5.4. Mobile Prefix Discovery . . . . . . . . . . . . . . 30
5.5. Payload Packets . . . . . . . . . . . . . . . . . . 30
6. New IPv6 Protocol, Message Types, and Destination Option . 31
6.1. Mobility Header . . . . . . . . . . . . . . . . . . 31
6.1.1. Format. . . . . . . . . . . . . . . . . . . 32
6.1.2. Binding Refresh Request Message . . . . . . 34
6.1.3. Home Test Init Message. . . . . . . . . . . 35
6.1.4. Care-of Test Init Message . . . . . . . . . 36
6.1.5. Home Test Message . . . . . . . . . . . . . 37
6.1.6. Care-of Test Message. . . . . . . . . . . . 38
6.1.7. Binding Update Message. . . . . . . . . . . 39
6.1.8. Binding Acknowledgement Message . . . . . . 42
6.1.9. Binding Error Message . . . . . . . . . . . 44
6.2. Mobility Options. . . . . . . . . . . . . . . . . . 46
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