wdiff rfc7249.original rfc7249.txt

Internet-Draft
Internet Engineering Task Force (IETF) R. Housley
Intended Status: Informational
Request for Comments: 7249 Vigil Security
Expires: 7 August 2014 7 February
Category: Informational May 2014
ISSN: 2070-1721

Internet Numbers Registries
<draft-housley-number-registries-04.txt>

Abstract

RFC 7020 provides information about the Internet Numbers Registry
System and how it is used in the distribution of autonomous system
(AS) numbers and globally unique unicast Internet Protocol (IP)
address space.

This companion document identifies the IANA registries that are part
of the Internet Numbers Registry System at this time.

Status of this This Memo

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provisions of BCP 78 and BCP 79.

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Internet Numbers Registries February 2014

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1. Introduction

In accordance with the IETF-IANA Memorandum of Understanding
[RFC2860], RFC 7020 [RFC7020] provides information about the Internet
Numbers Registry System and how it is used in the distribution of
autonomous system (AS) numbers and globally unique unicast Internet
Protocol (IP) address space.

This companion document identifies the IANA registries that are part
of the Internet Numbers Registry System at this time.

2. Internet Numbers Registries

Three IANA registries are associated with the Internet Numbers
Registry System: AS Numbers, unicast "Autonomous System (AS) Numbers", "IANA IPv4 Addresses, and unicast IPv6
Addresses. Address
Space Registry", and "IPv6 Global Unicast Address Assignments".
However, in each case, there are special-purpose values, and those
special-purpose values are outside the Internet Numbers Registry
System.

2.1. Autonomous System Numbers

For historical reasons, there are 16-bit AS numbers and 32-bit AS
numbers. However, the 16-bit AS numbers are really just zero through
65535 of the 32-bit AS number space.

The allocation and registration functions for all non-reserved AS
numbers are handled by the Internet Numbers Registry System in
accordance with policies developed by the Regional Internet
Registries (RIRs) public policy development in accordance with their processes.

Some special-purpose AS numbers have been reserved. Section 3 of
this document establishes an IANA registry for special-purpose AS
Numbers that have already been reserved. Future additions to this
registry can be made through "IETF Review" as defined in [RFC5226].
Once a future reservation is approved, it is recorded in the special-
purpose special-purpose
AS numbers registry with a reference to the IESG-approved RFC that
documents the reservation.

Internet Numbers Registries February 2014

2.2. IPv4 Addresses

The allocation and registration functions for all non-reserved non-reserved,
globally unique unicast IPv4 addresses are handled by the Internet
Numbers Registry System in accordance with policies developed by the
Regional Internet Registries (RIRs) public policy development
RIRs in accordance with their processes.

Reservations of special-purpose IPv4 addresses can be found in the
IANA registry [IANA-IPv4-Reg]. Future additions to this registry can
be made through "IETF Review" as defined in [RFC5226]. Once a future
reservation is approved, it is recorded in the special-purpose IPv4
address registry with a reference to the IESG-approved RFC that
documents the reservation.

2.3. IPv6 Addresses

The vast bulk of the IPv6 address space (approximately 7/8ths of the
whole address space) is reserved by the IETF [RFC3513], with the
expectation that further assignment of globally unique unicast
address space will be made from this reserved space in accordance
with future needs.

The allocation and registration functions for all non-reserved
globally unique unicast IPv6 addresses are handled by the Internet
Numbers Registry System in accordance with policies developed by the
Regional Internet Registries (RIRs) public policy development
RIRs in accordance with their processes.

Reservations of special-purpose IPv6 addresses can be found in the
IANA registry [IANA-IPv6-Reg]. Future additions to this registry can
be made through "IETF Review" as defined in [RFC5226]. Once a future
reservation is approved, it is recorded in the special-purpose IPv6
address registry with a reference to the IESG-approved RFC that
documents the reservation.

3. IANA Considerations

Please establish an

IANA registry for special-purpose has created the "Special-Purpose AS numbers. Numbers" registry. Future
additions to this registry can be made through "IETF Review" as
defined in [RFC5226]. At this time, the special-purpose AS numbers
are:

Internet Numbers Registries February 2014

AS Numbers Reason for Reservation
--------------------- -------------------------------------------
0 Reserved by [draft-ietf-idr-as0] [AS0-PROCESS]
23456 AS_TRANS; reserved by [RFC6793]
64496-64511 For documentation and sample code; reserved
by [RFC5398]
64512-65534 For private use; reserved by [RFC6996]
65535 Reserved by [RFC1930]
65536-65551 For documentation and sample code; reserved
by [RFC5398]
4200000000-4294967294 For private use; reserved by [RFC6996]
4294967295 Reserved by
[draft-ietf-idr-last-as-reservation] [LAST-AS-RES]

4. Security Considerations

This document identifies the IANA registries that are part of the
Internet Numbers Registry System at this time. the time of publication. It does
not change the security posture of the Internet in any way.

Network operators should take care that special-purpose numbers and
addresses are used on the public Internet in a manner that is
consistent with their reserved purpose.

5. References

5.1. Normative References

[RFC2860] Carpenter, B., Baker, F., and M. Roberts, "Memorandum of
Understanding Concerning the Technical Work of the Internet
Assigned Numbers Authority", RFC 2860, June 2000.

[RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an
IANA Considerations Section in RFCs", BCP 26, RFC 5226, May
2008.

[RFC7020] Housley, R., Curran, J., Huston, G., and D. Conrad, "The
Internet Numbers Registry System", RFC 7020, August 2013.

5.2. Informative References

[draft-ietf-idr-as0]

[AS0-PROCESS]
Kumari, W., R. Bush, H. R., Schiller, H., and K. Patel,
"Codification of AS 0 processing", work-in-progress, Work in Progress, August
2012.

[draft-ietf-idr-last-as-reservation]

[IANA-IPv4-Reg]
IANA, "IANA IPv4 Special-Purpose Address Registry",
<http://www.iana.org/assignments/
iana-ipv4-special-registry>.

[IANA-IPv6-Reg]
IANA, "IANA IPv6 Special-Purpose Address Registry",
<http://www.iana.org/assignments/
iana-ipv6-special-registry>.

[LAST-AS-RES]
Haas, J., J. and J. Mitchell, "Reservation of Last Autonomous
System (AS) Numbers", work-
in-progress, October 2013.

Internet Numbers Registries February 2014

[IANA-IPv4-Reg] http://www.iana.org/assignments/iana-ipv4-special-
registry/iana-ipv4-special-registry.xml

[IANA-IPv6-Reg] http://www.iana.org/assignments/iana-ipv6-special-
registry/iana-ipv6-special-registry.xml Work in Progress, April 2014.

[RFC1930] Hawkinson, J. and T. Bates, "Guidelines for creation,
selection, and registration of an Autonomous System (AS)",
BCP 6, RFC 1930, March 1996.

[RFC3513] Hinden, R. and S. Deering, "Internet Protocol Version 6
(IPv6) Addressing Architecture", RFC 3513, April 2003.

[RFC5398] Huston, G., "Autonomous System (AS) Number Reservation for
Documentation Use", RFC 5398, December 2008.

[RFC6793] Vohra, Q. and E. Chen, "BGP Support for Four-Octet
Autonomous System (AS) Number Space", RFC 6793, December
2012.

[RFC6996] Mitchell, J., "Autonomous System (AS) Reservation for
Private Use", BCP 6, RFC 6996, July 2013.

Acknowledgements

Many thanks to Jari Arkko, Scott Bradner, Brian Carpenter, David
Conrad, John Curran, David Farmer, Adrian Farrel, Stephen Farrell,
Brian Haberman, Geoff Huston, George Michaelson, S. Moonesamy, and
Thomas Narten for their insightful review and comment.

Author's Addresses

Russell Housley
Vigil Security, LLC
918 Spring Knoll Drive
Herndon, VA 20170
USA
EMail: housley@vigilsec.com