RFC 3846 on Mobile IPv4 Extension for Carrying Network Access Identifiers

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        RFC 3846

        Title:      Mobile IPv4 Extension for Carrying Network Access
                    Identifiers
        Author(s):  F. Johansson, T. Johansson
        Status:     Standards Track
        Date:       June 2004
        Mailbox:    [e-mail],
                    [e-mail]
        Pages:      8
        Characters: 16834
        Updates/Obsoletes/SeeAlso:    None

        I-D Tag:    draft-ietf-mip4-aaa-nai-02.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc3846.txt


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 document is a product of the Mobility for IPv4 Working Group of
the IETF.

This is now a Proposed Standard Protocol.

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.

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Joyce K. Reynolds and Sandy Ginoza
USC/Information Sciences Institute

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