RFC 3344 (rfc3344) - Page 1 of 99

IP Mobility Support for IPv4

Alternative Format: Original Text Document
Next >
Network Working Group                                    C. Perkins, Ed.
Request for Comments: 3344                         Nokia Research Center
Obsoletes: 3220                                              August 2002
Category: Standards Track


                      IP Mobility Support for IPv4

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 (2002).  All Rights Reserved.

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.

Contents

   1. Introduction                                                     3
       1.1. Protocol Requirements . . . . . . . . . . . . . . . . .    4
       1.2. Goals . . . . . . . . . . . . . . . . . . . . . . . . .    4
       1.3. Assumptions . . . . . . . . . . . . . . . . . . . . . .    5
       1.4. Applicability . . . . . . . . . . . . . . . . . . . . .    5
       1.5. New Architectural Entities  . . . . . . . . . . . . . .    5
       1.6. Terminology . . . . . . . . . . . . . . . . . . . . . .    6
       1.7. Protocol Overview . . . . . . . . . . . . . . . . . . .    9
       1.8. Message Format and Protocol Extensibility . . . . . . .   13
       1.9. Type-Length-Value Extension Format for Mobile IP
               Extensions . . . . . . . . . . . . . . . . . . . . .   15
      1.10. Long Extension Format . . . . . . . . . . . . . . . . .   16



Perkins                     Standards Track
Next >