Network Working Group J. Arkko Internet-Draft Ericsson Updates: 826,903,2390,1931,2225 October 22, 2008 (if approved) Intended status: Standards Track Expires: April 25, 2009 IANA Allocation Guidelines for the Address Resolution Protocol (ARP) draft-arkko-arp-iana-rules-00 Status of this Memo By submitting this Internet-Draft, each author represents that any applicable patent or other IPR claims of which he or she is aware have been or will be disclosed, and any of which he or she becomes aware will be disclosed, in accordance with Section 6 of BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on April 25, 2009. Abstract This document specifies the IANA guidelines for allocating new values in the Address Resolution Protocol (ARP). This document also reserves some numbers for experimentation purposes. 1. Introduction This document specifies the IANA guidelines [RFC5226] for allocating new values for various fields in the Address Resolution Protocol (ARP) [RFC0826]. The change is also applicable to extensions of ARP Arkko Expires April 25, 2009 [Page 1]
Internet-Draft ARP IANA Rules October 2008 defined in [RFC0903], [RFC2390], [RFC1931], and [RFC2225]. The guidelines are given in Section 2. Previously, no IANA guidance existed for such allocations. This document also reserves some numbers for experimentation purposes. These numbers are given in Section 3. 2. IANA Considerations The following rules apply to the fields of ARP: ar$hrd (16 bits) Hardware address space Requests for individual new ar$hrd values are made through First Come First Served [RFC5226]. Requests for a batch of several new ar$hrd values are made through Expert Review [RFC5226]. The expert should determine that the need to allocate the new values exists and that the existing values are insufficient to represent the new hardware address types. ar$pro (16 bits) Protocol address space These numbers share the Ethertype space. The Ethertype space is administered as described in [RFC5342]. ar$op (16 bits) Opcode Requests for new ar$op values are made through IETF Review or IESG Approval [RFC5226]. 3. Allocations Defined in This Document When testing new protocol extension ideas, it is often necessary to use an actual constant in order to use the new function, even when testing in a closed environment. This document reserves the following numbers for experimentation purposes in ARP: o One new ar$hrd value is allocated for experimental purposes, HW_EXP (TBD). o Two new values for the ar$op are allocated for experimental purposes, OP_EXP1 (TBD) and OP_EXP2 (TBD). Note that [RFC5342], Section B.2 lists two Ethertypes that can be used for experimental purposes. Arkko Expires April 25, 2009 [Page 2]
Internet-Draft ARP IANA Rules October 2008 4. Security Considerations This specification does not change the security properties of the affected protocols. However, a few words are necessary about the use of the experimental code points defined in Section 3. Production networks do not necessarily support the use of experimental code points in ARP. Potentially harmful side-effects from the use of the experimental values should be carefully evaluated before deploying any experiment across networks that the owner of the experiment does not entirely control. The network administrators should also ensure that each code point is used consistently to avoid interference between experiments. 5. Acknowledgments The lack of any current rules has come up as new values were requested from IANA. The author would like to thank Michelle Cotton in particular for bringing this issue up. When no rules exist, IANA consults the IESG for approval of the new values. The purpose of this specification is to establish the rules and allow IANA to operate based on the rules, without requiring confirmation from the IESG. The author would also like to thank Brian Carpenter, Thomas Narten, Scott Bradner, and Dave Thaler for feedback. 6. Normative References [RFC0826] Plummer, D., "Ethernet Address Resolution Protocol: Or converting network protocol addresses to 48.bit Ethernet address for transmission on Ethernet hardware", STD 37, RFC 826, November 1982. [RFC0903] Finlayson, R., Mann, T., Mogul, J., and M. Theimer, "Reverse Address Resolution Protocol", STD 38, RFC 903, June 1984. [RFC1931] Brownell, D., "Dynamic RARP Extensions for Automatic Network Address Acquisition", RFC 1931, April 1996. [RFC2225] Laubach, M. and J. Halpern, "Classical IP and ARP over ATM", RFC 2225, April 1998. [RFC2390] Bradley, T., Brown, C., and A. Malis, "Inverse Address Resolution Protocol", RFC 2390, September 1998. Arkko Expires April 25, 2009 [Page 3]
Internet-Draft ARP IANA Rules October 2008 [RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 5226, May 2008. [RFC5342] Eastlake. , D., "IANA Considerations and IETF Protocol Usage for IEEE 802 Parameters", BCP 141, RFC 5342, September 2008. Appendix A. Changes from the Original ARP RFCs This document specifies only the IANA rules associated with various fields in ARP, and does not make any other changes in the operation of the protocol itself. Author's Address Jari Arkko Ericsson Jorvas 02420 Finland Email: jari.arkko@piuha.net Arkko Expires April 25, 2009 [Page 4]
Internet-Draft ARP IANA Rules October 2008 Full Copyright Statement Copyright (C) The IETF Trust (2008). This document is subject to the rights, licenses and restrictions contained in BCP 78, and except as set forth therein, the authors retain all their rights. This document and the information contained herein are provided on an "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY, THE IETF TRUST AND THE INTERNET ENGINEERING TASK FORCE DISCLAIM 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. Intellectual Property The IETF takes no position regarding the validity or scope of any Intellectual Property Rights or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; nor does it represent that it has made any independent effort to identify any such rights. Information on the procedures with respect to rights in RFC documents can be found in BCP 78 and BCP 79. Copies of IPR disclosures made to the IETF Secretariat and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF on-line IPR repository at http://www.ietf.org/ipr. The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights that may cover technology that may be required to implement this standard. Please address the information to the IETF at ietf-ipr@ietf.org. Arkko Expires April 25, 2009 [Page 5]
