--- 1/draft-ietf-ipsecme-traffic-visibility-06.txt 2009-08-11 02:12:08.000000000 +0200 +++ 2/draft-ietf-ipsecme-traffic-visibility-07.txt 2009-08-11 02:12:08.000000000 +0200 @@ -1,44 +1,55 @@ Network Working Group K. Grewal Internet Draft Intel Corporation Intended status: Standards Track G. Montenegro -Expires: February 06, 2010 Microsoft Corporation +Expires: February 10, 2010 Microsoft Corporation M. Bhatia Alcatel-Lucent - August 06, 2009 + August 10, 2009 Wrapped ESP for Traffic Visibility - draft-ietf-ipsecme-traffic-visibility-06.txt + draft-ietf-ipsecme-traffic-visibility-07.txt Status of this Memo This Internet-Draft is submitted to IETF in full conformance - with the provisions of BCP 78 and BCP 79. + with the provisions of BCP 78 and BCP 79. This document may + contain material from IETF Documents or IETF Contributions + published or made publicly available before November 10, 2008. + The person(s) controlling the copyright in some of this material + may not have granted the IETF Trust the right to allow + modifications of such material outside the IETF Standards + Process. Without obtaining an adequate license from the + person(s) controlling the copyright in such materials, this + document may not be modified outside the IETF Standards Process, + and derivative works of it may not be created outside the IETF + Standards Process, except to format it for publication as an RFC + or to translate it into languages other than English. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet- Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. - This Internet-Draft will expire on February 06, 2010. + This Internet-Draft will expire on February 10, 2010. Copyright Copyright (c) 2009 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents in effect on the date of publication of this document (http://trustee.ietf.org/license- info). Please review these documents carefully, as they describe @@ -56,24 +67,24 @@ encryption and ESP NULL encryption by simply examining a packet. This poses certain challenges to the intermediate devices that need to deep inspect the packet before making a decision on what should be done with that packet (Inspect and/or Allow/Drop). The mechanism described in this document can be used to easily disambiguate ESP-NULL from ESP encrypted packets, without compromising on the security provided by ESP. Table of Contents - 1. Introduction...................................................2 + 1. Introduction...................................................3 1.1. Requirements Language.....................................4 1.2. Applicability Statement...................................4 - 2. Wrapped ESP (WESP) Header format...............................4 + 2. Wrapped ESP (WESP) Header format...............................5 2.1. UDP Encapsulation.........................................7 2.2. Transport and Tunnel Mode Considerations..................8 2.2.1. Transport Mode Processing............................8 2.2.2. Tunnel Mode Processing...............................9 2.3. IKE Considerations.......................................10 3. Security Considerations.......................................11 4. IANA Considerations...........................................12 5. Acknowledgments...............................................12 6. References....................................................12 6.1. Normative References.....................................12