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Network Working Group                                         R. HindenRequest for Comments: 2471                                        NokiaObsoletes:1897                                                 R. FinkCategory: Experimental                                             LBNL                                                              J. Postel                                                                    ISI                                                          December 1998IPv6 Testing Address AllocationStatus of this Memo   This memo defines an Experimental Protocol for the Internet   community.  It does not specify an Internet standard of any kind.   Discussion and suggestions for improvement are requested.   Distribution of this memo is unlimited.Copyright Notice   Copyright (C) The Internet Society (1998).  All Rights Reserved.1.0 Introduction   This document describes an allocation plan for IPv6 addresses to be   used in testing IPv6 prototype software.  These addresses are   temporary and will be reclaimed in the future.  Any IPv6 system using   these addresses will have to renumber at some time in the future.   These addresses will not to be routable in the Internet other than   for IPv6 testing.   The address format for the IPv6 test address is consistent with the   "Aggregatable Global Unicast Address Allocation" [AGGR] and "TLA and   NLA Assignment Rules" [TLAASN].   This document is intended to replaceRFC 1897 "IPv6 Testing Address   Allocation", January 1996.RFC 1897 will become historic.   The addresses described in this document are consistent with the IPv6   Addressing Architecture [ARCH].  They may be assigned to nodes   manually, with IPv6 Auto Address Allocation [AUTO], or with DHCP for   IPv6 [DHCPv6].   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 [RFC2119].Hinden, et. al.               Experimental                      [Page 1]

RFC 2471            IPv6 Testing Address Allocation        December 19982.0 Address Format   The Aggregatable Global Unicast Address Allocation format defined in   [AGGR] is as follows:      | 3 |  13 |    32     |   16   |          64 bits               |      +---+-----+-----------+--------+--------------------------------+      |FP | TLA | NLA ID    | SLA ID |         Interface ID           |      |   | ID  |           |        |                                |      +---+-----+-----------+--------+--------------------------------+   where:      FP = 001 = Format Prefix           This is the Format Prefix used to identify aggregatable           global unicast addresses.      TLA = 0x1FFE = Top-Level Aggregation Identifier           This is a TLA ID assigned by the IANA for 6bone testing under           the auspices of the IETF IPng Transition Working Group 6bone           testbed activity.  It is to be administered by the chair of           the 6bone activity (currently Bob Fink <rlfink@lbl.gov>).           The use of this TLA ID is temporary.  All users of these           addresses in this TLA ID will be required to renumber at some           time in the future.      NLA ID = Next-Level Aggregation Identifier           The NLA ID space will be assigned, by the TLA ID           administrator, in an addressing hierarchy sufficient to           identify transit networks and end user sites consistent with           the architecture and topology of the 6bone. This will provide           a multi-level transit service consistent with the 6bone goals           of fully testing IPv6 technology in real use environments.      SLA ID = Site-Level Aggregation Identifier           The SLA ID field is used by an individual organization to           create its own local addressing hierarchy and to identify           subnets.  Assignment of the SLA ID field is the           responsibility of each individual organization.Hinden, et. al.               Experimental                      [Page 2]

RFC 2471            IPv6 Testing Address Allocation        December 1998      Interface ID           This is the interface identifier of the interface on the link           as defined in the appropriate IPv6 over <link> document, such           as [ETHER], [FDDI], etc.4.0 References   [ARCH]    Hinden, R., "IP Version 6 Addressing Architecture",RFC 2373, July 1998.   [AGGR]    Hinden, R., Deering, S., O'Dell, M., "An Aggregatable             Global Unicast Address Format",RFC 2374, July 1998.   [AUTO]    Thompson, S. and T. Narten, "IPv6 Stateless Address             Autoconfiguration",RFC 1971, August 1996.   [DHCP6]   Bound, J.,"Host Configuration Protocol for IPv6", Work in             Progress.   [ETHER]   Crawford, M., "Transmission of IPv6 Packets over Ethernet             Networks",RFC 2464, December 1998.   [FDDI]    Crawford, M., "Transmission of IPv6 Packets over FDDI             Networks",RFC 2467, December 1998.   [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate             Requirement Levels",BCP 14,RFC 2119, March 1997.   [TLAASN]  Hinden, R.,"TLA and NLA Assignment Rules", Work in             Progress.5.0 Security Considerations   This document defines a test approach for creating aggregatable   address consistent with [AGGR].  It does not have any direct impact   on Internet infrastructure security.  Authentication of IPv6 packets   is defined in [AUTH].Hinden, et. al.               Experimental                      [Page 3]

RFC 2471            IPv6 Testing Address Allocation        December 19986.0  Authors' Addresses   Robert M. Hinden   Nokia   232 Java Drive   Sunnyvale, CA 94089   USA   Phone: +1 408 990-2004   EMail: hinden@iprg.nokia.com   Robert Fink   Lawrence Berkeley National Laboratory   MS 50A-3111   Berkeley, CA 94720   USA   Phone: +1 510 486-5692   EMail: rlfink@lbl.gov   Jon Postel (Deceased)   Information Sciences Institute   4676 Admiralty Way   Marina del Rey, CA 90292-6695   USAHinden, et. al.               Experimental                      [Page 4]

RFC 2471            IPv6 Testing Address Allocation        December 19987.0  Full Copyright Statement   Copyright (C) The Internet Society (1998).  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.Hinden, et. al.               Experimental                      [Page 5]