Internet Draft Peter Arberg Redback Networks Intended status: Best Current Practice Expiration Date: April 2007 Vince Mammoliti Cisco Systems October 2006 IANA Considerations for PPP over Ethernet (PPPoE) draft-arberg-pppoe-iana-03.txt 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/1id-abstracts.html The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on April 19, 2007. Copyright Notice Copyright (C) The Internet Society (2006). Abstract This document describes the IANA considerations for the PPP over Ethernet (PPPoE) protocol. Arberg Expires April 2007 [Page 1] Internet Draft draft-arberg-pppoe-iana-03.txt October 2006 Table of Contents 1. Introduction............................................... 2 1.1 Terminology.............................................. 2 1.2 Specification of Requirements............................ 2 2. IANA Considerations........................................ 3 2.1 Registration Policies for PPPoE TAG Values............... 3 2.2 Reserved PPPoE TAG Values................................ 3 2.3 Registration Policies for PPPoE Code fields.............. 4 2.4 Reserved PPPoE Code fields............................... 4 3. Security Considerations.................................... 4 4. References................................................. 5 4.1 Normative References..................................... 5 4.2 Informative References................................... 5 Author's Address........................................... 5 Full Copyright Statement................................... 6 Intellectual Property Statement............................ 6 1. Introduction This document provides guidance to the Internet Assigned Numbers Authority (IANA) regarding the registration of values related to the PPP over Ethernet Protocol (PPPoE), defined in [RFC2516], in accordance with BCP 26, [RFC2434]. It also reserves PPPoE TAG values as well as PPPoE packet Code fields which are or have been in use on the Internet. 1.1 Terminology The following terms are used here with the meanings defined in BCP 26: "name space", "registration". The following policies are used here with the meanings defined in BCP 26: "First Come First Served". 1.2 Specification of Requirements In this document, several words are used to signify the requirements of the specification. These words are often capitalized. 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]. Arberg Expires April 2007 [Page 2] Internet Draft draft-arberg-pppoe-iana-03.txt October 2006 2. IANA Considerations The PPPoE protocol as defined in [RFC2516] defines two name spaces that requires registration, the PPPoE TAG and the PPPoE Code field. 2.1 Registration Policies for PPPoE TAG Values IANA shall set up a registry of "PPPoE TAG Values". These are 16-bit values. PPPoE TAG values already in use are specified as reserved in this document, all other TAG values between 0 and 65535 are to be assigned by IANA, using the "First Come First Served" policy defined in [RFC2434]. A TAG-Name and a description for the usage as well as a point of contact MUST be provided for any assignment from this registry. A document reference SHOULD also be provided. 2.2 Reserved PPPoE TAG Values TAG Value TAG Name Tag Description Reference ----------- ------------------- ---------------------- --------- 0 0x0000 End-Of-List See the reference [RFC2516] 257 0x0101 Service-Name See the reference [RFC2516] 258 0x0102 AC-Name See the reference [RFC2516] 259 0x0103 Host-Uniq See the reference [RFC2516] 260 0x0104 AC-Cookie See the reference [RFC2516] 261 0x0105 Vendor-Specific See the reference [RFC2516] 262 0x0106 Credits See the reference [BERRY] 263 0x0107 Metrics See the reference [BERRY] 264 0x0108 Sequence Number See the reference [BERRY] 272 0x0110 Relay-Session-Id See the reference [RFC2516] 273 0x0111 HURL See the reference [CARREL] 274 0x0112 MOTM See the reference [CARREL] 288 0x0120 PPP-Max-Payload See the reference [ARBERG] 289 0x0121 IP_Route_Add See the reference [CARREL] 513 0x0201 Service-Name-Error See the reference [RFC2516] 514 0x0202 AC-System-Error See the reference [RFC2516] 515 0x0203 Generic-Error See the reference [RFC2516] Arberg Expires April 2007 [Page 3] Internet Draft draft-arberg-pppoe-iana-03.txt October 2006 2.3 Registration Policies for PPPoE Code fields IANA shall set up a registry of PPPoE Active Discovery Code fields. These are 8-bit values. PPPoE Code fields already in use are specified as reserved in this document, all other Code values between 0 and 255 are to be assigned by IANA, using the "First Come First Served" policy defined in [RFC2434]. A PPPoE Active Discovery packet name and a description for the usage as well as a point of contact MUST be provided for any assignment from this registry. A document reference SHOULD also be provided. 2.4 Reserved PPPoE Code fields Code PPPoE Packet Name Description Reference -------- ------------------------------ ----------------- --------- 0 0x00 PPP Session Stage See the reference [RFC2516] 7 0x07 PADO, Offer See the reference [RFC2516] 9 0x09 PADI, Initiation See the reference [RFC2516] 10 0x0a PADG, Session-Grant See the reference [BERRY] 11 0x0b PADC, Session-Credit Response See the reference [BERRY] 12 0x0c PADQ, Quality See the reference [BERRY] 25 0x19 PADR, Request See the reference [RFC2516] 101 0x65 PADS, Session-confirmation See the reference [RFC2516] 167 0xa7 PADT, Terminate See the reference [RFC2516] 211 0xd3 PADM, Message See the reference [CARREL] 212 0xd4 PADN, Network See the reference [CARREL] 3. Security Considerations This document focuses on IANA considerations for the PPPoE protocol, and as such should help remove the possibility for the same PPPoE code field and PPPoE TAG value being used for different functionalities. Arberg Expires April 2007 [Page 4] Internet Draft draft-arberg-pppoe-iana-03.txt October 2006 4. References 4.1 Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [RFC2434] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 2434, October 1998. [RFC2516] Mamakos L., Lidl K., Evarts J., Carrel D., Simone D., Wheeler R., "A Method for Transmitting PPP Over Ethernet (PPPoE)", RFC 2516, February 1999 4.2 Informative References [CARREL] Carrel D., Simone D., Ho C., Stoner T., "Extensions to a Method for Transmitting PPP Over Ethernet (PPPoE)", work in progress. [BERRY] Berry B., Holgate H., "PPP Over Ethernet (PPPoE) Extensions for Credit Flow and Link Metrics", work in progress. [ARBERG] Arberg P., Kourkouzelis D., Duckett M., Anschutz T., Moisand J., "Accommodating an MTU/MRU greater than 1492 in PPPoE", work in progress. Authors' Addresses Peter Arberg Redback Networks, Inc. 300 Holger Way San Jose, CA 95134 USA Email: parberg@redback.com Vince Mammoliti Cisco Systems, Inc. 181 Bay Street, Suite 3400 Toronto, Ontario, M5J 2T3 Canada EMail: vince@cisco.com Arberg Expires April 2007 [Page 5] Internet Draft draft-arberg-pppoe-iana-03.txt October 2006 Full Copyright Statement Copyright (C) The Internet Society (2006). 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. 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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. Acknowledgement Funding for the RFC Editor function is currently provided by the Internet Society. Arberg Expires April 2007 [Page 6]