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rfc:rfc2471

Network Working Group R. Hinden Request for Comments: 2471 Nokia Obsoletes: 1897 R. Fink Category: Experimental LBNL

                                                            J. Postel
                                                                  ISI
                                                        December 1998
                  IPv6 Testing Address Allocation

Status 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 replace RFC 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 1998

2.0 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 1998

6.0 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
 USA

Hinden, et. al. Experimental [Page 4] RFC 2471 IPv6 Testing Address Allocation December 1998

7.0 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]

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