Mapping of Address and Port using Translation (MAP-T)
RFC 7599
|
| Document |
Type |
|
RFC - Proposed Standard
(July 2015; Errata)
|
|
Last updated |
|
2018-01-05
|
|
Stream |
|
IETF
|
|
Formats |
|
plain text
pdf
html
bibtex
|
|
Reviews |
|
|
| Stream |
WG state
|
|
Submitted to IESG for Publication
|
|
Document shepherd |
|
Suresh Krishnan
|
|
Shepherd write-up |
|
Show
(last changed 2014-07-23)
|
| IESG |
IESG state |
|
RFC 7599 (Proposed Standard)
|
|
Consensus Boilerplate |
|
Yes
|
|
Telechat date |
|
|
|
Responsible AD |
|
Ted Lemon
|
|
Send notices to |
|
(None)
|
| IANA |
IANA review state |
|
IANA OK - No Actions Needed
|
|
IANA action state |
|
No IANA Actions
|
Internet Engineering Task Force (IETF) X. Li
Request for Comments: 7599 C. Bao
Category: Standards Track Tsinghua University
ISSN: 2070-1721 W. Dec, Ed.
O. Troan
Cisco Systems
S. Matsushima
SoftBank Telecom
T. Murakami
IP Infusion
July 2015
Mapping of Address and Port using Translation (MAP-T)
Abstract
This document specifies the solution architecture based on "Mapping
of Address and Port" stateless IPv6-IPv4 Network Address Translation
(NAT64) for providing shared or non-shared IPv4 address connectivity
to and across an IPv6 network.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7599.
Li, et al. Standards Track [Page 1]
RFC 7599 MAP-T July 2015
Copyright Notice
Copyright (c) 2015 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
(http://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.
Li, et al. Standards Track [Page 2]
RFC 7599 MAP-T July 2015
Table of Contents
1. Introduction ....................................................4
2. Conventions .....................................................4
3. Terminology .....................................................5
4. Architecture ....................................................6
5. Mapping Rules ...................................................8
5.1. Destinations outside the MAP Domain ........................8
6. The IPv6 Interface Identifier ...................................9
7. MAP-T Configuration ............................................10
7.1. MAP CE ....................................................10
7.2. MAP BR ....................................................11
8. MAP-T Packet Forwarding ........................................11
8.1. IPv4 to IPv6 at the CE ....................................11
8.2. IPv6 to IPv4 at the CE ....................................12
8.3. IPv6 to IPv4 at the BR ....................................12
8.4. IPv4 to IPv6 at the BR ....................................13
9. ICMP Handling ..................................................13
10. Fragmentation and Path MTU Discovery ..........................14
10.1. Fragmentation in the MAP Domain ..........................14
10.2. Receiving IPv4 Fragments on the MAP Domain Borders .......14
10.3. Sending IPv4 Fragments to the Outside ....................14
11. NAT44 Considerations ..........................................15
12. Usage Considerations ..........................................15
12.1. EA-Bit Length 0 ..........................................15
12.2. Mesh and Hub-and-Spoke Modes .............................15
12.3. Communication with IPv6 Servers in the MAP-T Domain ......15
12.4. Compatibility with Other NAT64 Solutions .................16
13. Security Considerations .......................................16
14. References ....................................................17
14.1. Normative References .....................................17
14.2. Informative References ...................................18
Appendix A. Examples of MAP-T Translation .........................21
Show full document text