Special-Purpose IP Address Registries
RFC 6890
Document | Type |
RFC - Best Current Practice
(April 2013; Errata)
Updated by RFC 8190
Was draft-bonica-special-purpose (individual)
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Authors | Michelle Cotton , Leo Vegoda , Ron Bonica , Brian Haberman | ||
Last updated | 2020-01-21 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized with errata bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6890 (Best Current Practice) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Ralph Droms | ||
IESG note | The document shepherd is Joel Halpern, <jmh@joelhalpern.com>. | ||
Send notices to | rbonica@juniper.net, jmh@joelhalpern.com |
Internet Engineering Task Force (IETF) M. Cotton Request for Comments: 6890 L. Vegoda BCP: 153 ICANN Obsoletes: 4773, 5156, 5735, 5736 R. Bonica, Ed. Category: Best Current Practice Juniper Networks ISSN: 2070-1721 B. Haberman JHU April 2013 Special-Purpose IP Address Registries Abstract This memo reiterates the assignment of an IPv4 address block (192.0.0.0/24) to IANA. It also instructs IANA to restructure its IPv4 and IPv6 Special-Purpose Address Registries. Upon restructuring, the aforementioned registries will record all special- purpose address blocks, maintaining a common set of information regarding each address block. This memo obsoletes RFCs 4773, 5156, 5735, and 5736. Status of This Memo This memo documents an Internet Best Current Practice. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on BCPs is available in Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6890. Cotton, et al. Best Current Practice [Page 1] RFC 6890 Special-Purpose Address Registries April 2013 Copyright Notice Copyright (c) 2013 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 carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction ....................................................2 2. IANA Considerations .............................................3 2.1. Assignment of an IPv4 Address Block to IANA ................3 2.2. Restructuring of the IPv4 and IPv6 Special-Purpose Address ....................................................4 2.2.1. Information Requirements ............................4 2.2.2. IPv4 Special-Purpose Address Registry Entries .......6 2.2.3. IPv6 Special-Purpose Address Registry Entries ......14 3. Security Considerations ........................................20 4. Acknowledgements ...............................................20 5. Informative References .........................................20 1. Introduction In order to support new protocols and practices, the IETF occasionally reserves an address block for a special purpose. For example, [RFC1122] reserves an IPv4 address block (0.0.0.0/8) to represent the local (i.e., "this") network. Likewise, [RFC4291] reserves an IPv6 address block (fe80::/10) to represent link-scoped unicast addresses. Periodically, the IETF publishes an RFC that catalogs special-purpose address blocks. Currently, [RFC5735] catalogs all IPv4 special- purpose address blocks and [RFC5156] catalogs all IPv6 special- purpose address blocks. [RFC5736] assigns an IPv4 address block (192.0.0.0/24) to IANA and instructs IANA to allocate special-purpose address blocks from this space. [RFC5736] also instructs IANA to create an IPv4 Special- Purpose Address Registry that records allocations from this address Cotton, et al. Best Current Practice [Page 2] RFC 6890 Special-Purpose Address Registries April 2013 space. However, [RFC5736] does not instruct IANA to record special- purpose address block reservations from outside of the aforementioned space in the IPv4 Special-Purpose Address Registry. Likewise, [RFC2928] assigns an IPv6 address block (2001:0000::/23) to IANA and instructs IANA to allocate special-purpose address blocks from this space. [RFC4773] instructs IANA to create an IPv6 Special- Purpose Address Registry that records allocations from this address space. However, [RFC4773] does not instruct IANA to record special- purpose address block reservations from outside of the aforementionedShow full document text