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RFC 2928

Initial IPv6 Sub-TLA ID Assignments

Pages: 7
Informational

ToP   noToC   RFC2928 - Page 1
Network Working Group                                          R. Hinden
Request for Comments: 2928                                         Nokia
Category: Informational                                       S. Deering
                                                                   Cisco
                                                                 R. Fink
                                                                    LBNL
                                                                 T. Hain
                                                               Microsoft
                                                          September 2000


                  Initial IPv6 Sub-TLA ID Assignments

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

Abstract

This document defines initial assignments of IPv6 Sub-Top-Level Aggregation Identifiers (Sub-TLA ID) to the Address Registries. It is intended as technical input to the Internet Assigned Numbers Authority (IANA) from the Internet Engineering Task Force (IETF) Internet Protocol Next Generation (IPNG) and Next Generation Transition (NGTRANS) working groups, as an input to the process of developing guidelines for the allocation of IPv6 addresses. This document was originally developed to provide advice to IANA in the fall of 1998 and is being published at this time for the historical record. The Internet Architecture Board (IAB) subsequently requested that the IANA delegate these assignments to the Address Registries. The IANA did this and the Address Registries are now using them to assign IPv6 addresses.

1. Introduction

This document was originally developed to provide advice to IANA in the fall of 1998 and is being published at this time for the historical record. The IAB subsequently requested that the IANA delegate these assignments to the Address Registries. The IANA did this and the Address Registries are now using them to assign IPv6 addresses.
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   This document defines initial assignments of IPv6 Sub-TLA Aggregation
   Identifiers (Sub-TLA ID) to the Address Registries.  It is intended
   as technical input to the IANA from the IETF IP Next Generation
   (IPNG) and Next Generation Transition (NGTRANS) working groups, as an
   input to the process of developing guidelines for the allocation of
   IPv6 addresses.

   The IAB and IESG have authorized the Internet Assigned Numbers
   Authority (IANA) as the appropriate entity to have the responsibility
   for the management of the IPv6 address space as defined in [ALLOC].

   The proposed initial assignment described in the document is
   consistent with:

      - RFC 2373,"IP Version 6 Addressing Architecture" [ARCH]
      - RFC 2374 "An Aggregatable Global Unicast Address Format" [AGGR]
      - RFC 2450 "Proposed TLA and NLA Assignment Rules" [TLA-RULES]

2. Background

[TLA-RULES] specifies that TLA assignments will be done in two stages. The first stage is to allocate a Sub-TLA ID. This document specifies the initial assignments of Sub-TLA ID's to the Registries. As defined in [TLA-RULES] Section 5.1: "Sub-TLA ID's are assigned out of TLA ID 0x0001 as follows. Note that use of the Reserved field to create the Sub-TLA field is specific to TLA ID 0x0001. It does not affect any other TLA. | 3 | 13 | 13 | 19 | +----+----------+---------+---------------+ | FP | TLA | Sub-TLA | NLA | | | ID | | ID | +----+----------+---------+---------------+ where: FP = 001 = Format Prefix This is the Format Prefix used to identify aggregatable global unicast addresses. TLA ID = 0x0001 = Top-Level Aggregation Identifier This is the TLA ID assigned by the IANA for Sub-TLA allocation.
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       Sub-TLA ID = Sub-TLA Aggregation Identifier

          The Sub-TLA ID field is used by the registries for initial
          allocations to organizations meeting the requirements in
          Section 5.2 of this document.  The IANA will assign small
          blocks (e.g., few hundred) of Sub-TLA ID's to registries.  The
          registries will assign the Sub-TLA ID's to organizations
          meeting the requirements specified in Section 5.2.  When the
          registries have assigned all of their Sub-TLA ID's they can
          request that the IANA give them another block.  The blocks do
          not have to be contiguous.  The IANA may also assign Sub-TLA
          ID's to organizations directly.  This includes the temporary
          TLA assignment for testing and experimental usage for
          activities such as the 6bone or new approaches like exchanges.

       NLA ID = Next-Level Aggregation Identifier

          Next-Level Aggregation ID's are used by organizations assigned
          a TLA ID to create an addressing hierarchy and to identify
          sites.  The organization can assign the top part of the NLA ID
          in a manner to create an addressing hierarchy appropriate to
          its network."

   Note: In the above quote from [TLA-RULES] the references to "Section
   5.2" refer to section 5.2 in [TLA-RULES].
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3. Initial Assignments

As specified in [TLA-RULES], Sub-TLA ID assignments are made in blocks. The initial Sub-TLA ID assignments to IP address registries are in blocks of 64 Sub-TLA IDs. These assignments are listed below. Binary Value IPv6 Prefix Range Assignment ---------------- ------------------------------- ------------------- 0000 000X XXXX X 2001:0000::/29 - 2001:01F8::/29 IANA 0000 001X XXXX X 2001:0200::/29 - 2001:03F8::/29 APNIC 0000 010X XXXX X 2001:0400::/29 - 2001:05F8::/29 ARIN 0000 011X XXXX X 2001:0600::/29 - 2001:07F8::/29 RIPE NCC 0000 100X XXXX X 2001:0800::/29 - 2001:09F8::/29 (future assignment) 0000 101X XXXX X 2001:0A00::/29 - 2001:0BF8::/29 (future assignment) 0000 110X XXXX X 2001:0C00::/29 - 2001:0DF8::/29 (future assignment) 0000 111X XXXX X 2001:0E00::/29 - 2001:0FF8::/29 (future assignment) 0001 000X XXXX X 2001:1000::/29 - 2001:11F8::/29 (future assignment) . . . . . . . . . 1111 111X XXXX X 2001:FE00::/29 - 2001:FFF8::/29 (future assignment) Where "X" indicates "0" or "1". All other Sub-TLA ID values not listed above are reserved. When a registry has assigned all of the Sub-TLA IDs in their block they can request that the IANA provide another block. The blocks assigned to a registry do not have to be contiguous. The block of Sub-TLA IDs assigned to the IANA (i.e., 2001:0000::/29 - 2001:01F8::/29) is for assignment for testing and experimental usage to support activities such as the 6bone, and for new approaches like exchanges.

4. Acknowledgments

The authors would like to express their thanks to Joyce K. Reynolds, Thomas Narten, Kim Hubbard, Mirjam Kuehne, and Brian Carpenter for their help with this document.

5. Security Considerations

IPv6 addressing documents do not have any direct impact on Internet infrastructure security. Authentication of IPv6 packets is defined in [AUTH]. Authentication of the ownership of prefixes to avoid "prefix stealing" is a related security issue but is beyond the scope of this document.
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6. References

[AGGR] Hinden, R., Deering, S. and M. O'Dell, "An Aggregatable Global Unicast Address Format", RFC 2374, July 1998. [ALLOC] IAB and IESG, "IPv6 Address Allocation Management", RFC 1881, December 1995. [ARCH] Hinden, R., "IP Version 6 Addressing Architecture", RFC 2373, July 1998. [AUTH] Kent, S. and R. Atkinson, "IP Authentication Header", RFC 2402, November 1998. [IPV6] Deering, S. and R. Hinden, "Internet Protocol, Version 6 (IPv6) Specification", RFC 2460, December 1998. [RFC2026] Bradner, S., "The Internet Standards Process -- Revision 3", BCP 9, RFC 2026, October 1996. [TLA-RULES] Hinden, R., "Proposed TLA and NLA Assignment Rules", RFC 2450, December 1998. [TST-ALLOC] Hinden, R., Fink R. and J. Postel, "IPv6 Testing Address Allocation", RFC 2471, December 1998.
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7. Authors' Addresses

Robert M. Hinden Nokia 313 Fairchild Drive Mountain View, CA 94043 USA Phone: +1 650 625-2004 EMail: hinden@iprg.nokia.com Stephen E. Deering Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA Phone: +1 408 527-8213 EMail: deering@cisco.com Robert L. Fink Lawrence Berkeley National Lab 1 Cyclotron Rd. Bldg 50A, Room 3111 Berkeley, CA 94720 USA Phone: +1 510 486-5692 EMail: rlfink@lbl.gov Tony Hain Microsoft Phone: +1 425 703-6619 EMail: tonyhain@microsoft.com
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8. Full Copyright Statement

Copyright (C) The Internet Society (2000). All Rights Reserved. This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English. The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns. This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Acknowledgement Funding for the RFC Editor function is currently provided by the Internet Society.