Multiple IPv4 - IPv6 address mapping encapsulation - prefix resolution (M46E-PR)
draft-matsuhira-m46e-pr-09
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Naoki Matsuhira
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2020-12-14
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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 - prefix resolution
(M46E-PR)
draft-matsuhira-m46e-pr-09
Abstract
This document specifies M46E Prefix Resolution (M46E-PR)
specification. M46E-PR connect IPv4 stub networks between IPv6
backbone network. And also, M46E-PR can stack many IPv4 networks,
i.e. the nwtworks 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.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
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
Matsuhira Expires June 18, 2021 [Page 1]
Internet-Draft M46E-PR December 2020
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Basic Network Configuration . . . . . . . . . . . . . . . . . 2
3. Basic Function of M46E-PR . . . . . . . . . . . . . . . . . . 3
3.1. IPv4 over IPv6 Encapsulation / Decapsulation . . . . . . 3
3.2. M46A architecture . . . . . . . . . . . . . . . . . . . . 4
3.3. Resolving M46A . . . . . . . . . . . . . . . . . . . . . 5
4. Mode of M46E-PR . . . . . . . . . . . . . . . . . . . . . . . 6
4.1. Router mode . . . . . . . . . . . . . . . . . . . . . . . 6
4.2. Host mode . . . . . . . . . . . . . . . . . . . . . . . . 6
5. Sample configuration . . . . . . . . . . . . . . . . . . . . 6
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
7. Security Considerations . . . . . . . . . . . . . . . . . . . 8
8. Normative References . . . . . . . . . . . . . . . . . . . . 8
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 8
1. Introduction
This document provide M46E Prefix Resolution (M46E-PR) specification.
The basic strategy for IPv6 deployment is dual stack. However,
because of exhaustion of IPv4 address, there will be no IPv4
addresses for configuring dual stack in near future. That means
there will be IPv6 only networks automatically.
However, there are many IPv4 only networks still exist and those
seems continuous use in near future. That means methods continuous
use of IPv4 network over IPv6 only network will be required.
M46E-PR also provide such methots.
2. Basic Network Configuration
Figure 1 shows network configuration with M46E-PR. The network
consists of three parts, backbone network, stub network, and M46E-PR.
Backbone network can be operated with IPv6 only. Stub network has
three cases, IPv4 only, Dual Stack (both IPv4 and IPv6), and IPv6
only.
Matsuhira Expires June 18, 2021 [Page 2]
Internet-Draft M46E-PR December 2020
M46E-FP connects backbone network and stub network in case IPv4 still
works in that stub network. If stub network is IPv6 only, M46E-PR is
not needed.
/---------------------------------------------------\
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| Backbone Network |
| (IPv6 only) |
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