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draft-nbourbaki-6man-classless-ipv6.txt
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Network Working Group N. Bourbaki Network Working Group R. Bush
Internet-Draft The Intertubes Internet-Draft Internet Initiative Japan
Updates: 4291 (if approved) May 16, 2017 Updates: 4291 (if approved) B. Carpenter
Intended status: Standards Track Intended status: Standards Track Univ. of Auckland
Expires: November 17, 2017 Expires: November 18, 2017 F. Gont
SI6 Networks / UTN-FRH
N. Hilliard
INEX
G. Huston
APNIC
J. Snijders
NTT
May 17, 2017
IPv6 is Classless IPv6 is Classless
@ -35,13 +43,21 @@ Status of This Memo
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on November 17, 2017. This Internet-Draft will expire on November 18, 2017.
Copyright Notice Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
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This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
@ -49,32 +65,23 @@ Copyright Notice
carefully, as they describe your rights and restrictions with respect carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of include Simplified BSD License text as described in Section 4.e of
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the Trust Legal Provisions and are provided without warranty as the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License. described in the Simplified BSD License.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Suggested Reading . . . . . . . . . . . . . . . . . . . . . . 2 2. Suggested Reading . . . . . . . . . . . . . . . . . . . . . . 3
3. Identifier and Subnet Length Statements . . . . . . . . . . . 3 3. Identifier and Subnet Length Statements . . . . . . . . . . . 3
4. Recommendations . . . . . . . . . . . . . . . . . . . . . . . 3 4. Recommendations . . . . . . . . . . . . . . . . . . . . . . . 4
5. Security Considerations . . . . . . . . . . . . . . . . . . . 4 5. Security Considerations . . . . . . . . . . . . . . . . . . . 4
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4
7. Authors . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7. Authors . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 4 8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 5
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 4 9. References . . . . . . . . . . . . . . . . . . . . . . . . . 5
9.1. Normative References . . . . . . . . . . . . . . . . . . 4 9.1. Normative References . . . . . . . . . . . . . . . . . . 5
9.2. Informative References . . . . . . . . . . . . . . . . . 5 9.2. Informative References . . . . . . . . . . . . . . . . . 5
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 6 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 6
1. Introduction 1. Introduction
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This document also clarifies that IPv6 routing subnets may be of any This document also clarifies that IPv6 routing subnets may be of any
length up to 128. length up to 128.
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2. Suggested Reading 2. Suggested Reading
It is assumed that the reader understands the history of classful It is assumed that the reader understands the history of classful
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arguments for operational flexibility in address assignment remain arguments for operational flexibility in address assignment remain
compelling. compelling.
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It is also assumed that the reader understands IPv6 [RFC2460], the IP It is also assumed that the reader understands IPv6 [RFC2460], the IP
Version 6 Addressing Architecture [RFC4291], the proposed changes to Version 6 Addressing Architecture [RFC4291], the proposed changes to
RFC4291 [I-D.ietf-6man-rfc4291bis] and RFC2464 RFC4291 [I-D.ietf-6man-rfc4291bis] and RFC2464
@ -149,6 +158,18 @@ Internet-Draft IPv6 is Classless May 2017
differentiate at a different granularity than is used by any such differentiate at a different granularity than is used by any such
automated link local address configuration tools. automated link local address configuration tools.
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4. Recommendations 4. Recommendations
For historical reasons, when a prefix is needed on a link, barring For historical reasons, when a prefix is needed on a link, barring
@ -162,14 +183,6 @@ Internet-Draft IPv6 is Classless May 2017
SLAAC in order not to discover bugs where 64 was hard-coded, and to SLAAC in order not to discover bugs where 64 was hard-coded, and to
favor portability of devices and operating systems. favor portability of devices and operating systems.
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Nonetheless, there is no reason in theory why an IPv6 node should not Nonetheless, there is no reason in theory why an IPv6 node should not
operate with different interface identfier lengths on different operate with different interface identfier lengths on different
physical interfaces. Thus, a correct implementation of SLAAC must in physical interfaces. Thus, a correct implementation of SLAAC must in
@ -204,6 +217,15 @@ Internet-Draft IPv6 is Classless May 2017
abetted by Brian Carpenter, Chris Morrow, Fernando Gont, Geoff abetted by Brian Carpenter, Chris Morrow, Fernando Gont, Geoff
Huston, Job Snijders, and Nick Hilliard. Huston, Job Snijders, and Nick Hilliard.
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8. Acknowledgments 8. Acknowledgments
The authors wish to thank . The authors wish to thank .
@ -218,14 +240,6 @@ Internet-Draft IPv6 is Classless May 2017
[RFC2460] Deering, S. and R. Hinden, "Internet Protocol, Version 6 [RFC2460] Deering, S. and R. Hinden, "Internet Protocol, Version 6
(IPv6) Specification", RFC 2460, December 1998. (IPv6) Specification", RFC 2460, December 1998.
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[RFC4291] Hinden, R. and S. Deering, "IP Version 6 Addressing [RFC4291] Hinden, R. and S. Deering, "IP Version 6 Addressing
Architecture", RFC 4291, February 2006. Architecture", RFC 4291, February 2006.
@ -259,6 +273,15 @@ Internet-Draft IPv6 is Classless May 2017
(CIDR): The Internet Address Assignment and Aggregation (CIDR): The Internet Address Assignment and Aggregation
Plan", BCP 122, RFC 4632, August 2006. Plan", BCP 122, RFC 4632, August 2006.
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[RFC4862] Thomson, S., Narten, T., and T. Jinmei, "IPv6 Stateless [RFC4862] Thomson, S., Narten, T., and T. Jinmei, "IPv6 Stateless
Address Autoconfiguration", RFC 4862, September 2007. Address Autoconfiguration", RFC 4862, September 2007.
@ -274,28 +297,79 @@ Internet-Draft IPv6 is Classless May 2017
Networks", RFC 7707, DOI 10.17487/RFC7707, March 2016, Networks", RFC 7707, DOI 10.17487/RFC7707, March 2016,
<http://www.rfc-editor.org/info/rfc7707>. <http://www.rfc-editor.org/info/rfc7707>.
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[RFC7721] Cooper, A., Gont, F., and D. Thaler, "Security and Privacy [RFC7721] Cooper, A., Gont, F., and D. Thaler, "Security and Privacy
Considerations for IPv6 Address Generation Mechanisms", Considerations for IPv6 Address Generation Mechanisms",
RFC 7721, DOI 10.17487/RFC7721, March 2016, RFC 7721, DOI 10.17487/RFC7721, March 2016,
<http://www.rfc-editor.org/info/rfc7721>. <http://www.rfc-editor.org/info/rfc7721>.
Author's Address Authors' Addresses
Nicolas Bourbaki Randy Bush
The Intertubes Internet Initiative Japan
42 Rue du Jour 5147 Crystal Springs
Sophia-Antipolis ::1 Bainbridge Island, Washington 98110
FR US
Email: bourbaki@bogus.com Email: randy@psg.com
Brian Carpenter
Department of Computer Science
University of Auckland
PB 92019
Auckland 1142
New Zealand
Email: brian.e.carpenter@gmail.com
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Fernando Gont
SI6 Networks / UTN-FRH
Evaristo Carriego 2644
Haedo, Provincia de Buenos Aires 1706
Argentina
Phone: +54 11 4650 8472
Email: fgont@si6networks.com
URI: http://www.si6networks.com
Nick Hilliard
INEX
4027 Kingswood Road
Dublin 24
Ireland
Email: nick@inex.ie
Geoff Huston
Email: gih@apnic.net
Job Snijders
NTT Communications
Theodorus Majofskistraat 100
Amsterdam 1065 SZ
The Netherlands
Email: job@ntt.net
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draft-nbourbaki-6man-classless-ipv6.xml
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<front> <front>
<title>IPv6 is Classless</title> <title>IPv6 is Classless</title>
<!--
<author fullname="Nicolas Bourbaki" initials="N." surname="Bourbaki"> <author fullname="Nicolas Bourbaki" initials="N." surname="Bourbaki">
<organization>The Intertubes</organization> <organization>The Intertubes</organization>
<address> <address>
@ -29,8 +30,8 @@
<email>bourbaki@bogus.com</email> <email>bourbaki@bogus.com</email>
</address> </address>
</author> </author>
-->
<!--
<author fullname="Randy Bush" initials="R.B." surname="Bush"> <author fullname="Randy Bush" initials="R.B." surname="Bush">
<organization>Internet Initiative Japan</organization> <organization>Internet Initiative Japan</organization>
<address> <address>
@ -61,6 +62,22 @@
</address> </address>
</author> </author>
<author fullname="Fernando Gont" initials="F." surname="Gont">
<organization>SI6 Networks / UTN-FRH</organization>
<address>
<postal>
<street>Evaristo Carriego 2644</street>
<code>1706</code>
<city>Haedo</city>
<region>Provincia de Buenos Aires</region>
<country>Argentina</country>
</postal>
<phone>+54 11 4650 8472</phone>
<email>fgont@si6networks.com</email>
<uri>http://www.si6networks.com</uri>
</address>
</author>
<author initials="N" surname="Hilliard" fullname="Nick Hilliard"> <author initials="N" surname="Hilliard" fullname="Nick Hilliard">
<organization>INEX</organization> <organization>INEX</organization>
<address> <address>
@ -74,14 +91,25 @@
</address> </address>
</author> </author>
<author fullname=“Geoff Huston" initials=“G" surname=“Huston"> <author fullname="Geoff Huston" initials="G" surname="Huston">
<organization abbrev=“APNIC"/> <organization abbrev="APNIC"/>
<address> <address>
<email>gih@apnic.net</email> <email>gih@apnic.net</email>
</address> </address>
</author> </author>
--> <author fullname="Job Snijders" initials="J." surname="Snijders">
<organization abbrev="NTT">NTT Communications</organization>
<address>
<postal>
<street>Theodorus Majofskistraat 100</street>
<code>1065 SZ</code>
<city>Amsterdam</city>
<country>The Netherlands</country>
</postal>
<email>job@ntt.net</email>
</address>
</author>
<date month="May" year="2017"/> <date month="May" year="2017"/>