[rfc-dist] RFC 4721 on Mobile IPv4 Challenge/Response Extensions (Revised)
rfc-editor at rfc-editor.org
Wed Jan 31 18:17:40 PST 2007
A new Request for Comments is now available in online RFC libraries.
Title: Mobile IPv4 Challenge/Response Extensions (Revised)
Author: C. Perkins, P. Calhoun,
Status: Standards Track
Date: January 2007
Mailbox: charles.perkins at nokia.com,
pcalhoun at cisco.com,
jayshree at nortel.com
I-D Tag: draft-ietf-mip4-rfc3012bis-05.txt
Mobile IP, as originally specified, defines an authentication
extension (the Mobile-Foreign Authentication extension) by which a
mobile node can authenticate itself to a foreign agent.
Unfortunately, that extension does not provide the foreign agent any
direct guarantee that the protocol is protected from replays and
does not allow for the use of existing techniques (such as Challenge
Handshake Authentication Protocol (CHAP)) for
authenticating portable computer devices.
In this specification, we define extensions for the Mobile IP Agent
Advertisements and the Registration Request that allow a foreign
agent to use a challenge/response mechanism to authenticate the
Furthermore, this document updates RFC 3344 by including a new
authentication extension called the Mobile-Authentication,
Authorization, and Accounting (AAA) Authentication
extension. This new extension is provided so that a mobile node can
supply credentials for authorization, using commonly available AAA
infrastructure elements. This authorization-enabling extension MAY
co-exist in the same Registration Request with authentication
extensions defined for Mobile IP Registration by RFC 3344. This
document obsoletes RFC 3012. [STANDARDS TRACK]
This document is a product of the Mobility for IPv4
Working Group of the IETF.
This is now a Proposed Standard Protocol.
STANDARDS TRACK: 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
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