Name: draft-ietf-mip4-rfc3012bis-03
Title: Mobile IPv4 Challenge/Response Extensions (revised)
State: Active
Authors: Charles Perkins
Group: Mobility for IPv4 (mip4)
Date: 2004-12-03
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 CHAP [10]) 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 mobile
node. Furthermore, this document updates RFC 3344 [7] by including new
authentication extension called the Mobile-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 [7]. This document obsoletes RFC 3012.
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