I-D ACTION:draft-ietf-ipsec-ikev2-02.txt

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This draft is a work item of the IP Security Protocol Working Group of the IETF.

	Title		: Propsal for the IKEv2 Protocol
	Author(s)	: D. Harkins, C. Kaufman et al.
	Filename	: draft-ietf-ipsec-ikev2-02.txt
	Pages		: 70
	Date		: 25-Apr-02
	
This document describes version 2 of the IKE (Internet Key Exchange)
protocol.  IKE performs mutual authentication and establishes an IKE
security association that can be used to efficiently establish SAs
for ESP, AH and/or IPcomp. This version greatly simplifies IKE by
replacing the 8 possible phase 1 exchanges with a single exchange
based on either public signature keys or shared secret keys.  The
single exchange provides identity hiding, yet works in 2 round trips
(all the identity hiding exchanges in IKE v1 required 3 round trips).
Latency of setup of an IPsec SA is further reduced from IKEv1 by
allowing setup of an SA for ESP, AH, and/or IPcomp to be piggybacked
on the initial IKE exchange.  It also improves security by allowing
the Responder to be stateless until it can be assured that the
Initiator can receive at the claimed IP source address.  This version
also presents the entire protocol in a single self-contained
document, in contrast to IKEv1, in which the protocol was described
in ISAKMP (RFC 2408), IKE (RFC 2409), and the DOI (RFC 2407)
documents.

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