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I-D ACTION:draft-ietf-mip4-rfc3012bis-00.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Mobility for IPv4 Working Group of the IETF.

	Title		: Mobile IPv4 Challenge/Response Extensions (revised)
	Author(s)	: C. Perkins, et. al.
	Filename	: draft-ietf-mip4-rfc3012bis-00.txt
	Pages		: 23
	Date		: 2003-10-21
	
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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