I-D ACTION:draft-ietf-mobileip-challenge-06.txt

Internet-Drafts@ietf.org Thu, 28 October 1999 12:58 UTC

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Subject: I-D ACTION:draft-ietf-mobileip-challenge-06.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the IP Routing for Wireless/Mobile Hosts Working Group of the IETF.

	Title		: Mobile IP Challenge/Response Extensions
	Author(s)	: C. Perkins, P. Calhoun
	Filename	: draft-ietf-mobileip-challenge-06.txt
	Pages		: 12
	Date		: 27-Oct-99
	
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, this extension does not provide ironclad replay
protection for the foreign agent, and does not conform to existing
techniques (such as 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 mobile node.

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