NAT64 Deployment Options and Experience
RFC 7269
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Type |
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RFC - Informational
(June 2014; No errata)
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Last updated |
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2015-10-14
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Replaces |
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draft-chen-v6ops-nat64-experience
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IETF
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plain text
pdf
html
bibtex
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Fred Baker
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Shepherd write-up |
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Show
(last changed 2014-01-31)
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| IESG |
IESG state |
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RFC 7269 (Informational)
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Consensus Boilerplate |
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Yes
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Responsible AD |
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Joel Jaeggli
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(None)
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| IANA |
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Version Changed - Review Needed
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IANA action state |
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No IC
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Internet Engineering Task Force (IETF) G. Chen
Request for Comments: 7269 Z. Cao
Category: Informational China Mobile
ISSN: 2070-1721 C. Xie
China Telecom
D. Binet
France Telecom-Orange
June 2014
NAT64 Deployment Options and Experience
Abstract
This document summarizes NAT64 function deployment scenarios and
operational experience. Both NAT64 Carrier-Grade NAT (NAT64-CGN) and
NAT64 server Front End (NAT64-FE) are considered in this document.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
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). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see 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/rfc7269.
Copyright Notice
Copyright (c) 2014 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.
Chen, et al. Informational [Page 1]
RFC 7269 NAT64 Experience June 2014
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. NAT64 Networking Experience . . . . . . . . . . . . . . . . . 4
3.1. NAT64-CGN Consideration . . . . . . . . . . . . . . . . . 4
3.1.1. NAT64-CGN Usages . . . . . . . . . . . . . . . . . . 4
3.1.2. DNS64 Deployment . . . . . . . . . . . . . . . . . . 4
3.1.3. NAT64 Placement . . . . . . . . . . . . . . . . . . . 5
3.1.4. Coexistence of NAT64 and NAT44 . . . . . . . . . . . 5
3.2. NAT64-FE Consideration . . . . . . . . . . . . . . . . . 6
4. High Availability . . . . . . . . . . . . . . . . . . . . . . 7
4.1. Redundancy Design . . . . . . . . . . . . . . . . . . . . 7
4.2. Load Balancing . . . . . . . . . . . . . . . . . . . . . 9
5. Source-Address Transparency . . . . . . . . . . . . . . . . . 9
5.1. Traceability . . . . . . . . . . . . . . . . . . . . . . 9
5.2. Geolocation . . . . . . . . . . . . . . . . . . . . . . . 10
6. Quality of Experience . . . . . . . . . . . . . . . . . . . . 11
6.1. Service Reachability . . . . . . . . . . . . . . . . . . 11
6.2. Resource Reservation . . . . . . . . . . . . . . . . . . 13
7. MTU Considerations . . . . . . . . . . . . . . . . . . . . . 13
8. ULA Usages . . . . . . . . . . . . . . . . . . . . . . . . . 14
9. Security Considerations . . . . . . . . . . . . . . . . . . . 15
10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 15
11. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 16
12. References . . . . . . . . . . . . . . . . . . . . . . . . . 16
12.1. Normative References . . . . . . . . . . . . . . . . . . 16
12.2. Informative References . . . . . . . . . . . . . . . . . 18
Appendix A. Test Results for Application Behavior . . . . . . . 21
1. Introduction
IPv6 is the only sustainable solution for numbering nodes on the
Internet due to the IPv4 depletion. Network operators have to deploy
IPv6-only networks in order to meet the needs of the expanding
Internet without available IPv4 addresses.
Single-stack IPv6 network deployment can simplify network
provisioning; some justification was provided in 464XLAT [RFC6877].
IPv6-only connectivity confers some benefits to mobile operators as
an example. In the mobile context, IPv6-only usage enables the use
of a single IPv6 Packet Data Protocol (PDP) context or Evolved Packet
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