Extended Sequence Number (ESN) Addendum to IPsec Domain of Interpretation (DOI) for Internet Security Association and Key Management Protocol (ISAKMP)
RFC 4304

Approval announcement
Draft of message to be sent after approval:

From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Cc: Internet Architecture Board <iab@iab.org>,
    RFC Editor <rfc-editor@rfc-editor.org>, 
    ipsec mailing list <ipsec@ietf.org>, 
    ipsec chair <ipsec-chairs@tools.ietf.org>
Subject: Protocol Action: 'Extended Sequence Number Addendum to 
         IPsec DOI for ISAKMP' to Proposed Standard 

The IESG has approved the following document:

- 'Extended Sequence Number Addendum to IPsec DOI for ISAKMP '
   <draft-ietf-ipsec-esn-addendum-04.txt> as a Proposed Standard

This document is the product of the IP Security Protocol Working Group. 

The IESG contact persons are Russ Housley and Tim Polk.

A URL of this Internet-Draft is:

Technical Summary
  The IPsec Authentication Header (AH) and Encapsulating Security
  Payload (ESP) protocols use a sequence number to detect replay.  This
  document describes extensions to the IPsec DOI for ISAKMP.  These
  extensions support negotiation of the use of traditional 32-bit
  sequence numbers or extended 64-bit sequence numbers for a particular
  AH or ESP security association.
Working Group Summary
  The IPsec Working Group came to consensus on this document.
Protocol Quality
  This document was reviewed by Russell Housley for the IESG.