Mobility Support in IPv6
RFC 6275

Internet Engineering Task Force (IETF)                   C. Perkins, Ed.
Request for Comments: 6275                                 Tellabs, Inc.
Obsoletes: 3775                                               D. Johnson
Category: Standards Track                                Rice University
ISSN: 2070-1721                                                 J. Arkko
                                                                Ericsson
                                                               July 2011

                        Mobility Support in IPv6

Abstract

   This document specifies Mobile IPv6, a protocol that 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.  This document obsoletes RFC 3775.

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/rfc6275.

Perkins, et al.              Standards Track                    [Page 1]
RFC 6275                Mobility Support in IPv6               July 2011

Copyright Notice

   Copyright (c) 2011 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, et al.              Standards Track                    [Page 2]
RFC 6275                Mobility Support in IPv6               July 2011

Table of Contents

   1. Introduction ....................................................7
   2. Comparison with Mobile IP for IPv4 ..............................8
   3. Terminology .....................................................9
      3.1. General Terms ..............................................9
      3.2. Mobile IPv6 Terms .........................................11
   4. Overview of Mobile IPv6 ........................................15
      4.1. Basic Operation ...........................................15
      4.2. New IPv6 Protocol .........................................17
      4.3. New IPv6 Destination Option ...............................18
      4.4. New IPv6 ICMP Messages ....................................19
      4.5. Conceptual Data Structure Terminology .....................19
      4.6. Unique-Local Addressability ...............................20
   5. Overview of Mobile IPv6 Security ...............................20