Multiple IPv4 - IPv6 address mapping translator (M46T)
draft-matsuhira-m46t-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 translator (M46T)
draft-matsuhira-m46t-09
Abstract
This document specifies Multiple IPv4 - IPv6 address mapping
Translator (M46T) specification. M46T enable access to IPv4 only
host from IPv6 host. IPv4 host is identified as M46 address in IPv6
address space. The address assigned to IPv4 host may be global IPv4
address or private IPv4 address. M46T does not support access to
IPv6 host from IPv4 only host.
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 M46T 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
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described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. M46T Architecture . . . . . . . . . . . . . . . . . . . . . . 2
2.1. M46 address . . . . . . . . . . . . . . . . . . . . . . . 2
2.2. Mapping IPv4 address and IPv6 address . . . . . . . . . . 3
2.3. Address Translation Table . . . . . . . . . . . . . . . . 3
2.4. DNS mapping of IPv4 only host . . . . . . . . . . . . . . 3
3. Sample Configuration . . . . . . . . . . . . . . . . . . . . 3
3.1. M46 address and IPv4 network plane ID . . . . . . . . . . 4
3.2. Network Configuration . . . . . . . . . . . . . . . . . . 4
3.3. Routing . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. Processing of M46T . . . . . . . . . . . . . . . . . . . . . 6
4.1. Configuration of M46T . . . . . . . . . . . . . . . . . . 6
4.2. Processing from IPv6 to IPv4 . . . . . . . . . . . . . . 6
4.3. Processing from IPv6 to IPv4 . . . . . . . . . . . . . . 7
4.4. Other processing . . . . . . . . . . . . . . . . . . . . 7
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 7
6. Security Considerations . . . . . . . . . . . . . . . . . . . 7
7. Normative References . . . . . . . . . . . . . . . . . . . . 7
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 8
1. Introduction
This document specifies Multiple IPv4 - IPv6 address mapping
Translator (M46T) specification. M46T enable access to IPv4 only
host from IPv6 host. IPv4 host is identified as M46 address in IPv6
address space. The address assigned to IPv4 host may be global IPv4
address or private IPv4 address. M46T does not support access to
IPv6 host from IPv4 only host.
2. M46T Architecture
2.1. M46 address
Figure 1 show M46A [I-D.draft-matsuhira-m46a].
Matsuhira Expires June 18, 2021 [Page 2]
Internet-Draft M46T December 2020
| 96 - m bits | m bits | 32 bits |
+-----------------------+--------------------------+--------------+
| M46A prefix | IPv4 network plane ID | IPv4 address |
+-----------------------+--------------------------+--------------+
Figure 1
2.2. Mapping IPv4 address and IPv6 address
M46A contain IPv4 address. Mapping IPv4 host address to IPv6 address
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