IPv6 Compressed Routing Header with Variable Length Addresses
draft-templin-6man-crh-variable-00

Document Type Active Internet-Draft (individual)
Author Fred Templin 
Last updated 2020-05-18
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Network Working Group                                    F. Templin, Ed.
Internet-Draft                                        The Boeing Company
Intended status: Standards Track                            May 18, 2020
Expires: November 19, 2020

     IPv6 Compressed Routing Header with Variable Length Addresses
                   draft-templin-6man-crh-variable-00

Abstract

   The IPv6 Routing Header can be used to direct a packet through
   multiple intermediate IPv6 waypoints toward a final destination.  In
   its simplest form, the routing header includes the full length of
   each intermediate IPv6 waypoint.  This document specifies a method
   for supporting variable-length compressed IPv6 addresses.

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 November 19, 2020.

Copyright Notice

   Copyright (c) 2020 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
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   described in the Simplified BSD License.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   2
   3.  Requirements  . . . . . . . . . . . . . . . . . . . . . . . .   2
   4.  IPv6 Compressed Routing Header with Variable Length Addresses   2
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   4
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   4
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   4
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   4
     8.2.  Informative References  . . . . . . . . . . . . . . . . .   4
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   4

1.  Introduction

   The IPv6 Routing Header [RFC8200] can be used to direct a packet
   through multiple intermediate IPv6 waypoints toward a final
   destination.  In its simplest form, the routing header includes the
   full length of each intermediate IPv6 waypoint.  This document
   specifies a method for supporting variable-length compressed IPv6
   addresses.

2.  Terminology

   The terminology in the normative references applies.

3.  Requirements

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in BCP
   14 [RFC2119][RFC8174] when, and only when, they appear in all
   capitals, as shown here.

4.  IPv6 Compressed Routing Header with Variable Length Addresses

   An IPv6 Compressed Routing Header with Variable length addreses is
   shown in Figure 1:

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        0                   1                   2                   3
        0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
       |  Next Header  |  Hdr Ext Len  | Routing Type  | Segments Left |
       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
       |T|RSV|  Len[0] |  IPv6 Address[0] (0 to 31 bytes)  .....
       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
       |T|RSV|  Len[1] |  IPv6 Address[1] (0 to 31 bytes)  .....
       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
       |T|RSV|  Len[2] |  IPv6 Address[2] (0 to 31 bytes)  .....
       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
       ...
       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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