ESP Header Compression and Diet-ESP
draft-mglt-ipsecme-diet-esp-06

Document Type Active Internet-Draft (individual)
Last updated 2018-05-30
Replaces draft-mglt-6lo-diet-esp, draft-mglt-6lo-diet-esp-payload-compression
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ipsecme                                                       D. Migault
Internet-Draft                                                  Ericsson
Intended status: Standards Track                             T. Guggemos
Expires: November 30, 2018                                    LMU Munich
                                                              C. Bormann
                                                 Universitaet Bremen TZI
                                                             D. Schinazi
                                                              Apple Inc.
                                                            May 29, 2018

                  ESP Header Compression and Diet-ESP
                     draft-mglt-ipsecme-diet-esp-06

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 sent over a single TCP or
   UDP session.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on November 30, 2018.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Migault, et al.         Expires November 30, 2018               [Page 1]
Internet-Draft                  Diet-ESP                        May 2018

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Table of Contents

   1.  Requirements notation . . . . . . . . . . . . . . . . . . . .   3
   2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Protocol Overview . . . . . . . . . . . . . . . . . . . . . .   4
   5.  IPsec Compression Mode  . . . . . . . . . . . . . . . . . . .   5
   6.  EHC Context . . . . . . . . . . . . . . . . . . . . . . . . .   6
     6.1.  Diet-ESP Context Parameters for ESP . . . . . . . . . . .   6
     6.2.  EHC Context Parameters for Inner IP . . . . . . . . . . .   7
     6.3.  EHC Context Parameters for Transport Protocol . . . . . .   8
   7.  EHC Rules . . . . . . . . . . . . . . . . . . . . . . . . . .  10
     7.1.  EHC Rules for ESP . . . . . . . . . . . . . . . . . . . .  12
     7.2.  EHC Rules for inner IPv4  . . . . . . . . . . . . . . . .  13
     7.3.  EHC Rules for inner IPv6  . . . . . . . . . . . . . . . .  15
     7.4.  EHC Rules for UDP . . . . . . . . . . . . . . . . . . . .  17
     7.5.  EHC Rules for UDP-Lite  . . . . . . . . . . . . . . . . .  18
     7.6.  EHC Rules for TCP . . . . . . . . . . . . . . . . . . . .  19
   8.  Diet-ESP EHC Strategy . . . . . . . . . . . . . . . . . . . .  20
     8.1.  Outbound Packet Processing  . . . . . . . . . . . . . . .  23
     8.2.  Inbound Packet Processing . . . . . . . . . . . . . . . .  25
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  28
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  28
   11. Privacy Considerations  . . . . . . . . . . . . . . . . . . .  29
   12. Acknowledgment  . . . . . . . . . . . . . . . . . . . . . . .  30
   13. References  . . . . . . . . . . . . . . . . . . . . . . . . .  30
     13.1.  Normative References . . . . . . . . . . . . . . . . . .  30
     13.2.  Informational References . . . . . . . . . . . . . . . .  31
   Appendix A.  Illustrative Examples  . . . . . . . . . . . . . . .  31
     A.1.  Single UDP Session IoT VPN  . . . . . . . . . . . . . . .  31
     A.2.  Single TCP session IoT VPN  . . . . . . . . . . . . . . .  34
     A.3.  Traditional VPN . . . . . . . . . . . . . . . . . . . . .  37
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