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Mobile IPv4 Extension for Carrying Network Access Identifiers (RFC3846)

IP.com Disclosure Number: IPCOM000029466D
Original Publication Date: 2004-Jun-01
Included in the Prior Art Database: 2004-Jun-30
Document File: 9 page(s) / 17K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

F. Johansson: AUTHOR [+2]

Abstract

When a mobile node moves between two foreign networks, it has to be re-authenticated. If the home network has both multiple Authentication Authorization and Accounting (AAA) servers and Home Agents (HAs) in use, the Home AAA server may not have sufficient information to process the re-authentication correctly (i.e., to ensure that the same HA continues to be used). This document defines a Mobile IP extension that carries identities for the Home AAA and HA servers in the form of Network Access Identifiers (NAIs). The extension allows a Home Agent to pass its identity (and that of the Home AAA server) to the mobile node, which can then pass it on to the local AAA server when changing its point of attachment. This extension may also be used in other situations requiring communication of a NAI between Mobile IP nodes.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 17% of the total text.

Network Working Group                                       F. Johansson

Request for Comments: 3846                                   ipUnplugged

Category: Standards Track                                   T. Johansson

                                                              Bytemobile

                                                               June 2004

     Mobile IPv4 Extension for Carrying Network Access Identifiers

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

   When a mobile node moves between two foreign networks, it has to be

   re-authenticated.  If the home network has both multiple

   Authentication Authorization and Accounting (AAA) servers and Home

   Agents (HAs) in use, the Home AAA server may not have sufficient

   information to process the re-authentication correctly (i.e., to

   ensure that the same HA continues to be used).  This document defines

   a Mobile IP extension that carries identities for the Home AAA and HA

   servers in the form of Network Access Identifiers (NAIs).  The

   extension allows a Home Agent to pass its identity (and that of the

   Home AAA server) to the mobile node, which can then pass it on to the

   local AAA server when changing its point of attachment.  This

   extension may also be used in other situations requiring

   communication of a NAI between Mobile IP nodes.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2

   2.  Requirements terminology . . . . . . . . . . . . . . . . . . .  2

   3.  NAI Carrying Extension . . . . . . . . . . . . . . . . . . . .  3

       3.1.  Processing of the NAI Carrying Extension . . . . . . . .  3

   4.  HA Identity subtype  . . . . . . . . . . . . . . . . . . . . .  4

   5.  AAAH Identity subtype  . . . . . . . . . . . . . . . . . . . .  4

   6.  Security Considerations  . . . . . . . . . . . . . . . . . . .  5

   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  5

   8.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .  6

Jhansson & Johansson        Standards Track                     [Page 1]

RFC 3846              MIPv4 Extension for AAA NAIs             June 2004

   9.  Normative References . . . . . . . . . . . . ....