IP Mobility Support for IPv4, Revised
RFC 5944
Document | Type |
RFC - Proposed Standard
(November 2010; Errata)
Obsoletes RFC 3344
|
|
---|---|---|---|
Author | Charles Perkins | ||
Last updated | 2020-01-21 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized with errata bibtex | ||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 5944 (Proposed Standard) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Jari Arkko | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) C. Perkins, Ed. Request for Comments: 5944 WiChorus Inc. Obsoletes: 3344 November 2010 Category: Standards Track ISSN: 2070-1721 IP Mobility Support for IPv4, Revised Abstract This document specifies protocol enhancements that allow transparent routing of IP datagrams to mobile nodes in the 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 its current point of attachment to the Internet. The protocol provides for registering the care-of address with a home agent. The home agent sends datagrams destined for the mobile node through a tunnel to the care- of address. After arriving at the end of the tunnel, each datagram is then delivered to the mobile node. 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/rfc5944. Perkins Standards Track [Page 1] RFC 5944 IP Mobility Support November 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. Code Components extracted from this document must 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. This document may contain material from IETF Documents or IETF Contributions published or made publicly available before November 10, 2008. The person(s) controlling the copyright in some of this material may not have granted the IETF Trust the right to allow modifications of such material outside the IETF Standards Process. Without obtaining an adequate license from the person(s) controlling the copyright in such materials, this document may not be modified outside the IETF Standards Process, and derivative works of it may not be created outside the IETF Standards Process, except to format it for publication as an RFC or to translate it into languages other than English. Perkins Standards Track [Page 2] RFC 5944 IP Mobility Support November 2010 Table of Contents 1. Introduction ....................................................5 1.1. Protocol Requirements ......................................5 1.2. Goals ......................................................6 1.3. Assumptions ................................................6 1.4. Applicability ..............................................6 1.5. New Architectural Entities .................................7 1.6. Terminology ................................................7 1.7. Protocol Overview .........................................11 1.8. Message Format and Protocol Extensibility .................14 1.9. Type-Length-Value Extension Format for Mobile IP Extensions ................................................16 1.10. Long Extension Format ....................................17 1.11. Short Extension Format ...................................18 2. Agent Discovery ................................................18 2.1. Agent Advertisement .......................................19 2.1.1. Mobility Agent Advertisement Extension .............21 2.1.2. Prefix-Lengths Extension ...........................23 2.1.3. One-Byte Padding Extension .........................24 2.2. Agent Solicitation ........................................24 2.3. Foreign Agent and Home Agent Considerations ...............24 2.3.1. Advertised Router Addresses ........................26 2.3.2. Sequence Numbers and Rollover Handling .............26Show full document text