ESP Header Compression and Diet-ESP
draft-mglt-ipsecme-diet-esp-04

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ipsecme                                                  D. Migault, Ed.
Internet-Draft                                                  Ericsson
Intended status: Standards Track                        T. Guggemos, Ed.
Expires: December 31, 2017                                    LMU Munich
                                                              C. Bormann
                                                 Universitaet Bremen TZI
                                                           June 29, 2017

                  ESP Header Compression and Diet-ESP
                   draft-mglt-ipsecme-diet-esp-04.txt

Abstract

   ESP Header Compression (EHC) defines a flexible framework to compress
   communications protected with IPsec/ESP.  Compression and
   decompression is defined by EHC Rules orchestrated by EHC Strategies.

   The document specifies the Diet-ESP EHC Strategy and associated EHC
   Rules.  Diet-ESP compresses up to 32 bytes per packet for traditional
   IPv6 VPN and up to 66 bytes for IPv6 VPN set over a single TCP or UDP
   session.

Status of This Memo

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   This Internet-Draft will expire on December 31, 2017.

Copyright Notice

   Copyright (c) 2017 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
   (http://trustee.ietf.org/license-info) in effect on the date of

Migault, et al.         Expires December 31, 2017               [Page 1]
Internet-Draft                  Diet-ESP                       June 2017

   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   include Simplified BSD License text as described in Section 4.e of
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Table of Contents

   1.  Requirements notation . . . . . . . . . . . . . . . . . . . .   3
   2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Protocol Overview . . . . . . . . . . . . . . . . . . . . . .   4
   5.  Diet-ESP EHC Context  . . . . . . . . . . . . . . . . . . . .   5
     5.1.  Diet-ESP Context Parameters for ESP . . . . . . . . . . .   6
     5.2.  Diet-ESP Context Parameters for Inner IP  . . . . . . . .   6
     5.3.  Diet-ESP Context Parameters for Transport Protocol  . . .   8
   6.  Diet-ESP EHC Rules  . . . . . . . . . . . . . . . . . . . . .   8
     6.1.  EHC Rules for ESP . . . . . . . . . . . . . . . . . . . .  10
     6.2.  EHC Rules for inner IPv4  . . . . . . . . . . . . . . . .  12
     6.3.  EHC Rules for inner IPv6  . . . . . . . . . . . . . . . .  14
     6.4.  EHC Rules for UDP . . . . . . . . . . . . . . . . . . . .  16
     6.5.  EHC Rules for UDP-Lite  . . . . . . . . . . . . . . . . .  17
     6.6.  EHC Rules for TCP . . . . . . . . . . . . . . . . . . . .  18
   7.  Diet-ESP EHC Strategy . . . . . . . . . . . . . . . . . . . .  19
     7.1.  Outbound Packet Processing  . . . . . . . . . . . . . . .  19
     7.2.  Inbound Packet Processing . . . . . . . . . . . . . . . .  21
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  24
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  24
   10. Privacy Considerations  . . . . . . . . . . . . . . . . . . .  25
   11. Acknowledgment  . . . . . . . . . . . . . . . . . . . . . . .  25
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  26
     12.1.  Normative References . . . . . . . . . . . . . . . . . .  26
     12.2.  Informational References . . . . . . . . . . . . . . . .  26
   Appendix A.  Illustrative Examples  . . . . . . . . . . . . . . .  27
     A.1.  Single UDP Session IoT VPN  . . . . . . . . . . . . . . .  27
     A.2.  Single TCP session IoT VPN  . . . . . . . . . . . . . . .  30
     A.3.  Traditional VPN . . . . . . . . . . . . . . . . . . . . .  33
   Appendix B.  EHC Classification (Informative) . . . . . . . . . .  40
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