A Compact LISP Encapsulation Scheme to Transport IPv4 Packets over an IPv6 Network
draft-boucadair-lisp-v6-compact-header-04

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Last updated 2016-12-13
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Network Working Group                                       M. Boucadair
Internet-Draft                                              C. Jacquenet
Intended status: Experimental                                     Orange
Expires: June 16, 2017                                 December 13, 2016

 A Compact LISP Encapsulation Scheme to Transport IPv4 Packets over an
                              IPv6 Network
               draft-boucadair-lisp-v6-compact-header-04

Abstract

   The encapsulation scheme used by the Locator/ID Separation Protocol
   (LISP) may sometimes raise MTU issues at the cost of possibly
   degrading the overall performance of the LISP network, especially in
   IPv6 migration contexts.  This document proposes a new, more compact,
   encapsulation scheme that aims to accommodate such issues and
   facilitate LISP deployment for IPv6 migration purposes, in
   particular.  This compact header may be considered to provide IPv4
   over IPv6 connectivity for mobile LISP-capable devices.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

Status of This Memo

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

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on June 16, 2017.

Boucadair & Jacquenet     Expires June 16, 2017                 [Page 1]
Internet-Draft         Compact LISP Encapsulation          December 2016

Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  A Compact LISP Header . . . . . . . . . . . . . . . . . . . .   6
     2.1.  C Flag  . . . . . . . . . . . . . . . . . . . . . . . . .   6
     2.2.  On the Use of IPv4-Embedded IPv6 RLOCs  . . . . . . . . .   7
     2.3.  Truncated TCP Header  . . . . . . . . . . . . . . . . . .   8
     2.4.  Compact LISP Header Format  . . . . . . . . . . . . . . .   8
   3.  LISP Encapsulation with the Compact Header Form . . . . . . .  10
     3.1.  UDP Packets . . . . . . . . . . . . . . . . . . . . . . .  10
     3.2.  TCP Packets . . . . . . . . . . . . . . . . . . . . . . .  11
     3.3.  Fragments . . . . . . . . . . . . . . . . . . . . . . . .  11
   4.  LISP Decapsulation with the Compact LISP Header . . . . . . .  12
     4.1.  Build an IPv4/UDP Header  . . . . . . . . . . . . . . . .  12
     4.2.  Build an IPv4/TCP Header  . . . . . . . . . . . . . . . .  12
   5.  A More Compact LISP Encapsulation Flavor  . . . . . . . . . .  13
     5.1.  LISP Encapsulation with the More Compact Header Form  . .  15
       5.1.1.  UDP Packets . . . . . . . . . . . . . . . . . . . . .  15
       5.1.2.  TCP Packets . . . . . . . . . . . . . . . . . . . . .  16
       5.1.3.  Fragments . . . . . . . . . . . . . . . . . . . . . .  16
     5.2.  LISP Decapsulation with the More Compact LISP Header  . .  16
       5.2.1.  Build an IPv4/UDP Header  . . . . . . . . . . . . . .  17
       5.2.2.  Build an IPv4/TCP Header  . . . . . . . . . . . . . .  17
   6.  Discussion  . . . . . . . . . . . . . . . . . . . . . . . . .  18
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  18
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  18
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  19
   10. Normative references  . . . . . . . . . . . . . . . . . . . .  19
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  19
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