Internet Key Exchange Protocol: IKEv2.1

Document Type Expired Internet-Draft (individual)
Author Paul Hoffman 
Last updated 2005-12-29
Stream (None)
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes version 2.1 of the Internet Key Exchange (IKE) protocol. IKEv2.1 is heavily based on IKEv2 from RFC 4306 (edited by Charlie Kaufman), and includes all of the clarifications from the "IKEv2 Clarifications" document (edited by Pasi Eronen and Paul Hoffman). IKEv2.1 makes additional changes to those two documents in places where IKEv2 was unclear and the clarifications document did not commit to a particular protocol interpretation.


Paul Hoffman (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)