IANA Guidelines for IPv4 Multicast Address Assignments
RFC 5771
Document | Type |
RFC - Best Current Practice
(March 2010; Errata)
Updates RFC 2780
Also known as BCP 51
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Authors | David Meyer , Michelle Cotton , Leo Vegoda | ||
Last updated | 2013-03-02 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 5771 (Best Current Practice) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Ron Bonica | ||
Send notices to | dmm@1-4-5.net |
Internet Engineering Task Force (IETF) M. Cotton Request for Comments: 5771 L. Vegoda BCP: 51 ICANN Updates: 2780 D. Meyer Obsoletes: 3138, 3171 March 2010 Category: Best Current Practice ISSN: 2070-1721 IANA Guidelines for IPv4 Multicast Address Assignments Abstract This document provides guidance for the Internet Assigned Numbers Authority (IANA) in assigning IPv4 multicast addresses. It obsoletes RFC 3171 and RFC 3138 and updates RFC 2780. 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/rfc5771. Copyright Notice Copyright (c) 2010 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. Cotton, et al. Best Current Practice [Page 1] RFC 5771 IPv4 Multicast Guidelines March 2010 Table of Contents 1. Introduction ....................................................2 2. Terminology .....................................................3 3. Definition of Current Assignment Practice .......................3 4. Local Network Control Block (224.0.0/24) ........................4 4.1. Assignment Guidelines ......................................4 5. Internetwork Control Block (224.0.1/24) .........................5 5.1. Assignment Guidelines ......................................5 6. AD-HOC Blocks (I, II, and III) ..................................5 6.1. Assignment Guidelines ......................................5 7. SDP/SAP Block (224.2/16) ........................................5 7.1. Assignment Guidelines ......................................5 8. Source-Specific Multicast Block (232/8) .........................6 8.1. Assignment Guidelines ......................................6 9. GLOP Block (233/8) ..............................................6 9.1. Assignment Guidelines ......................................6 9.2. AD-HOC Block III ...........................................6 10. Administratively Scoped Block (239/8) ..........................7 10.1. Assignment Guidelines .....................................7 10.1.1. Relative Offsets ...................................7 11. Application Form ...............................................7 11.1. Size of Assignments of IPv4 Multicast Addresses ...........7 12. Annual Review ..................................................8 12.1. Address Reclamation .......................................8 12.2. Positive Renewal ..........................................8 13. Use of IANA Reserved Addresses .................................8 14. IANA Considerations ............................................8 15. Security Considerations ........................................9 16. Acknowledgments ................................................9 17. References .....................................................9 17.1. Normative References ......................................9 17.2. Informative References ....................................9 1. Introduction The Internet Assigned Numbers Authority (IANA) (www.iana.org) is charged with allocating parameter values for fields in protocols that have been designed, created, or are maintained by the Internet Engineering Task Force (IETF). RFC 2780 [RFC2780] provides the IANA guidance in the assignment of parameters for fields in newly developed protocols. This memo expands on section 4.4.2 of RFC 2780 and attempts to codify existing IANA practice used in the assignment of IPv4 multicast addresses. Cotton, et al. Best Current Practice [Page 2]Show full document text