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DHCP Options for Home Information Discovery in Mobile IPv6 (MIPv6)
RFC 6610

Internet Engineering Task Force (IETF)                           H. Jang
Request for Comments: 6610                                         KISTI
Category: Standards Track                                       A. Yegin
ISSN: 2070-1721                                                  Samsung
                                                            K. Chowdhury
                                               Radio Mobile Access, Inc.
                                                                 J. Choi
                                                                 Samsung
                                                                T. Lemon
                                                                 Nominum
                                                                May 2012

   DHCP Options for Home Information Discovery in Mobile IPv6 (MIPv6)

Abstract

   This document defines a DHCP-based scheme to enable dynamic discovery
   of Mobile IPv6 home network information.  New DHCP options are
   defined that allow a mobile node to request the home agent IP
   address, Fully Qualified Domain Name (FQDN), or home network prefix
   and obtain it via the DHCP response.

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/rfc6610.

Copyright Notice

   Copyright (c) 2012 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

Jang, et al.                 Standards Track                    [Page 1]
RFC 6610         DHCPv6 for Home Info Discovery in MIPv6        May 2012

   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.

Table of Contents

   1. Introduction ....................................................3
   2. Terminology .....................................................3
   3. DHCP Options for Home Network/Agent Dynamic Discovery ...........4
      3.1. MIPv6 Home Network ID FQDN Option ..........................4
      3.2. Home Network Information Options ...........................5
           3.2.1. MIPv6 Visited Home Network Information Option .......5
           3.2.2. MIPv6 Identified Home Network Information Option ....6
           3.2.3. MIPv6 Unrestricted Home Network Information Option ..6
      3.3. MIPv6 Home Network Prefix Option ...........................7
      3.4. MIPv6 Home Agent Address Option ............................7
      3.5. MIPv6 Home Agent FQDN Option ...............................8
   4. Option Usage ....................................................9
      4.1. Mobile Node Behavior .......................................9
           4.1.1. Requesting MIPv6 Configuration ......................9
           4.1.2. Processing MIPv6 Configuration Information .........10
      4.2. Relay Agent Behavior ......................................11
      4.3. DHCP Server Behavior ......................................12
      4.4. Home Agent Discovery Using a Network Access Server ........12
   5. Security Considerations ........................................13
   6. IANA Considerations ............................................14
   7. Acknowledgments ................................................14

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