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List:       ipsec
Subject:    [Ipsec] Fwd: I-D ACTION:draft-nir-ikev2-auth-lt-01.txt
From:       Yoav Nir <ynir () checkpoint ! com>
Date:       2004-11-17 7:53:53
Message-ID: D37531F8-386D-11D9-9006-000A95834BAA () checkpoint ! com
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From: Internet-Drafts@ietf.org
Date: November 16, 2004 11:12:48 PM IST
To: i-d-announce@ietf.org
Subject: I-D ACTION:draft-nir-ikev2-auth-lt-01.txt
Reply-To: internet-drafts@ietf.org

A New Internet-Draft is available from the on-line Internet-Drafts 
directories.


	Title		: Repeated Authentication in IKEv2
	Author(s)	: Y. Nir
	Filename	: draft-nir-ikev2-auth-lt-01.txt
	Pages		: 4
	Date		: 2004-11-16
	
With some IPsec peers, particularly in the remote access scenario, it
is desirable to repeat the mutual authentication periodically.
The purpose of this is to limit the time that SAs can be used by a
third party who has gained control of the IPsec peer.  This is not the
same as IKE SA rekeying, and need not be tied to it.  Repeated
authentication can be achieved by simply repeating the Initial
exchange by whichever side has a stricter policy.
However, in the remote access scenario it is usually up to a human
user to supply the authentication credentials, and often EAP is used
for authentication, which makes it unreasonable or impossible for the
remote access gateway to initiate the exchange.
This document describes how the original Responder can send a
notification to the Initiator with the number of seconds before the
authentication needs to be repeated.  The Initiator will repeat the
Initial exchange before that time is expired.  If the Initiator fails
to do so, the Responder may close all tunnels.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-nir-ikev2-auth-lt-01.txt

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