Multiple IPv4 - IPv6 address mapping encapsulation - fixed prefix (M46E-FP)
draft-matsuhira-m46e-fp-09

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Network Working Group                                       N. Matsuhira
Internet-Draft                                           Fujitsu Limited
Intended status: Informational                         December 15, 2020
Expires: June 18, 2021

Multiple IPv4 - IPv6 address mapping encapsulation - fixed prefix (M46E-
                                  FP)
                       draft-matsuhira-m46e-fp-09

Abstract

   This document specifies Multiple IPv4 - IPv6 address mapping
   encapsulation - fixed prefix (M46E-FP) specification.  M46E-FP makes
   backbone network to IPv6 only.  And also, M46E-FP can stack many IPv4
   networks, i.e. the networks using same IPv4 (private) addresses,
   without interdependence.

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.

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   This Internet-Draft will expire on June 18, 2021.

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
   Provisions Relating to IETF Documents

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   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Architecture of M46E-FP . . . . . . . . . . . . . . . . . . .   3
   3.  Basic Network Configuration . . . . . . . . . . . . . . . . .   5
   4.  Basic Function of M46E-FP . . . . . . . . . . . . . . . . . .   6
     4.1.  IPv4 over IPv6 Encapsulation / Decapsulation  . . . . . .   6
     4.2.  M46A architecture . . . . . . . . . . . . . . . . . . . .   7
     4.3.  Route Advertisement . . . . . . . . . . . . . . . . . . .   8
   5.  Stacking IPv4 Networks  . . . . . . . . . . . . . . . . . . .   8
   6.  Redundancy of M46E-FP . . . . . . . . . . . . . . . . . . . .   9
   7.  Example of M46E-FP Operation  . . . . . . . . . . . . . . . .  10
     7.1.  Basic M46E-FP Operation . . . . . . . . . . . . . . . . .  10
     7.2.  M46E-FP Operation with plane ID . . . . . . . . . . . . .  12
   8.  Characteristic  . . . . . . . . . . . . . . . . . . . . . . .  15
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  16
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  16
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  16
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  16
     11.2.  References . . . . . . . . . . . . . . . . . . . . . . .  17
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  17

1.  Introduction

   This document provides Multiple IPv4 - IPv6 address maping
   encapsulation - fixed prefix (M46E-FP) specification.

   The basic strategy for IPv6 deployment is dual stack.  Viewing this
   strategy from operational side, operation cost of dual stack is
   higher than single stack operation.  Viewing from future, IPv6 only
   operation is more reasonable rather than IPv4 only operation.
   Therefore IPv6 only operation is desired.

   M46E-FP makes backbone network to IPv6 only and privide IPv4
   connectivities.  And also, M46E-FP can stack many IPv4 networks, i.e.
   the networks using same IPv4 (private) address, without
   interdependence.

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2.  Architecture of M46E-FP

   IP address contain two information, one is locator information, and
   another is identifier information.  This is basic architecture of
   internet protocol, and also the Internet, and no difference between