Network Working Group J. Weil
Internet-Draft Time Warner Cable
Intended status: Informational V. Kuarsingh
Expires: March 2, 2012 Rogers Communications
C. Donley
CableLabs
C. Liljenstolpe
Telstra Corp
M. Azinger
Frontier Communications
August 30, 2011
IANA Reserved IPv4 Prefix for Shared Transition Space
draft-weil-shared-transition-space-request-04
Abstract
This document requests a reserved IANA IPv4 address allocation as
Shared Transition Space to support the deployment of IPv4 address
sharing technologies post IPv4 exhaustion
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
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This Internet-Draft will expire on March 2, 2012.
Copyright Notice
Copyright (c) 2011 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
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carefully, as they describe your rights and restrictions with respect
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 4
3. Applicability . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Shared Transition Space . . . . . . . . . . . . . . . . . . . 6
5. Security Considerations . . . . . . . . . . . . . . . . . . . 7
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 8
7. Normative References . . . . . . . . . . . . . . . . . . . . . 9
Appendix A. Acknowledgments . . . . . . . . . . . . . . . . . . . 10
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 11
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1. Introduction
Many operators are currently implementing their IPv6 transition
plans. During the transition, continued support for heritage IPv4-
only devices will be required. In order to facilitate the deployment
of transition technologies to support such heritage IPv4-only devices
and services, Service Providers require IPv4 address space that is
separate from the range of IPv4 addresses used by subscribers. This
address space need not be unique to each provider, but should be
outside of [RFC1918] space. This document requests that an IPv4 /10
be reserved as Shared Transition Space solely to facilitate
deployment of IPv6 transition/IPv4 coexistence technologies.
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2. 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].
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3. Applicability
The Internet community is rapidly consuming the remaining supply of
unallocated IPv4 addresses. During the transition period to IPv6, it
is imperative that Service Providers maintain IPv4 service for
devices and networks that are currently incapable of upgrading to
IPv6.
The applicability of and justification for Shared Transition Space is
described in [I-D.bdgks-arin-shared-transition-space].
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4. Shared Transition Space
This document proposes the assignment of a /10 as Shared Transition
Space. Shared Transition Space is IPv4 address space reserved for
Infrastructure Provider use with the purpose of facilitating IPv6
transition and IPv4 coexistence deployment. The requested block
SHOULD NOT be utilized for any purpose other than as "inside"
addresses in a carrier NAT environment (e.g., between the CGN and
customer CPE devices) or for other IPv4 to IPv6 transition
infrastructure. Network equipment manufacturers MUST NOT use the
assigned block in default or example device configurations.
Because Shared Transition addresses have no meaning outside of the
Infrastructure Provider, routing information about shared transition
space networks MUST NOT be propagated on interdomain links, and
packets with shared transition source or destination addresses SHOULD
NOT be forwarded across such links. Internet service providers
SHOULD filter out routing information about shared transition space
networks on ingress links.
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5. Security Considerations
This memo does not define any protocol, and raises no security
issues. Any addresses allocated as Shared Transition Space would not
be routable on the Internet.
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6. IANA Considerations
IANA is asked to record the allocation of an IPv4 /10 for use as
Shared Transition Space.
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7. Normative References
[I-D.bdgks-arin-shared-transition-space]
Barber, S., Delong, O., Grundemann, C., Kuarsingh, V., and
B. Schliesser, "ARIN Draft Policy 2011-5: Shared
Transition Space",
draft-bdgks-arin-shared-transition-space-01 (work in
progress), July 2011.
[RFC1918] Rekhter, Y., Moskowitz, R., Karrenberg, D., Groot, G., and
E. Lear, "Address Allocation for Private Internets",
BCP 5, RFC 1918, February 1996.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
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Appendix A. Acknowledgments
Thanks to the following people (in alphabetical order) for their
guidance and feedback:
John Brzozowski
Isaiah Connell
Greg Davies
Kirk Erichsen
Wes George
Tony Hain
Philip Matthews
John Pomeroy
Barbara Stark
Jean-Francois Tremblay
Leo Vegoda
Steven Wright
Ikuhei Yamagata
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Authors' Addresses
Jason Weil
Time Warner Cable
13820 Sunrise Valley Drive
Herndon, VA 20171
USA
Email: jason.weil@twcable.com
Victor Kuarsingh
Rogers Communications
8200 Dixie Road
Brampton, ON L6T 0C1
Canada
Email: victor.kuarsingh@rci.rogers.com
Chris Donley
CableLabs
858 Coal Creek Circle
Louisville, CO 80027
USA
Email: c.donley@cablelabs.com
Christopher Liljenstolpe
Telstra Corp
7/242 Exhibition Street
Melbourne, VIC 316
Australia
Phone: +61 3 8647 6389
Email: cdl@asgaard.org
Marla Azinger
Frontier Communications
Vancouver, WA
USA
Phone: +1.360.513.2293
Email: marla.azinger@frontiercorp.com
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