Internet Draft Peter Arberg Redback Networks Intended status: Best Current Practice Expiration Date: August 2006 Vince Mammoliti Cisco Systems February 2006 IANA Considerations for PPP over Ethernet (PPPoE) draft-arberg-pppoe-iana-01.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 August 31, 2006. Copyright Notice Copyright (C) The Internet Society (2006). Abstract This document describes the IANA considerations for the PPP over Ethernet (PPPoE) protocol. Arberg Expires August 2006 [Page 1] Internet Draft draft-arberg-pppoe-iana-01.txt February 2006 Table of Contents 1. Introduction............................................... 2 1.1 Terminology.............................................. 2 1.2 Specification of Requirements............................ 2 2. IANA Considerations........................................ 3 2.1 Recommended Registration Policies for PPPoE TAG Values... 3 2.2 Reserved PPPoE TAG Values................................ 3 2.3 Recommended Registration Policies for PPPoE Code fields.. 4 2.4 Reserved PPPoE Code fields............................... 4 3. Security Considerations.................................... 4 4. Normative References....................................... 5 4.1 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", "assigned value", "registration". The following policies are used here with the meanings defined in BCP 26: "Private Use", "First Come First Served", "Expert Review", "Specification Required", "IETF Consensus", "Standards Action". 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 August 2006 [Page 2] Internet Draft draft-arberg-pppoe-iana-01.txt February 2006 2. IANA Considerations The PPPoE protocol as defined in [RFC2516] defines two name space that requires registration, the PPPoE TAG and the PPPoE Code field. 2.1 Recommended Registration Policies for PPPoE TAG Values IANA needs to 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 point of contact MUST be provided for any assignment from this registry. If a specification description exists, a reference to this SHOULD also be provided. 2.2 Reserved PPPoE TAG Values TAG Value TAG Name Reference -------------- ------------------------- --------- 0 0x0000 End-Of-List [RFC2516] 257 0x0101 Service-Name [RFC2516] 258 0x0102 AC-Name [RFC2516] 259 0x0103 Host-Uniq [RFC2516] 260 0x0104 AC-Cookie [RFC2516] 261 0x0105 Vendor-Specific [RFC2516] 262 0x0106 Credits [BERRY] 263 0x0107 Metrics [BERRY] 264 0x0108 Sequence Number [BERRY] 272 0x0110 Relay-Session-Id [RFC2516] 273 0x0111 HURL [CARREL] 274 0x0112 MOTM [CARREL] 288 0x0120 PPP-Max-Payload [ARBERG] 289 0x0121 IP_Route_Add [CARREL] 513 0x0201 Service-Name-Error [RFC2516] 514 0x0202 AC-System-Error [RFC2516] 515 0x0203 Generic-Error [RFC2516] Arberg Expires August 2006 [Page 3] Internet Draft draft-arberg-pppoe-iana-01.txt February 2006 2.3 Recommended Registration Policies for PPPoE Code fields IANA needs to 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 point of contact MUST be provided for any assignment from this registry. If a specification description exists, a reference to this SHOULD also be provided. 2.4 Reserved PPPoE Code fields Code Value PPPoE Packet Name Reference ---------- --------------------------------------- --------- 0 0x00 PPP Session Stage [RFC2516] 7 0x07 PADO, Offer [RFC2516] 9 0x09 PADI, Initiation [RFC2516] 10 0x0a PADG, Session-Grant [BERRY] 11 0x0b PADC, Session-Credit Response [BERRY] 12 0x0c PADQ, Quality [BERRY] 25 0x19 PADR, Request [RFC2516] 101 0x65 PADS, Session-confirmation [RFC2516] 167 0xa7 PADT, Terminate [RFC2516] 211 0xd3 PADM, Message [CARREL] 212 0xd4 PADN, Network [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 August 2006 [Page 4] Internet Draft draft-arberg-pppoe-iana-01.txt February 2006 4. 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 4.1 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 August 2006 [Page 5] Internet Draft draft-arberg-pppoe-iana-01.txt February 2006 Full Copyright Statement Copyright (C) The Internet Society (2005). 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 August 2006 [Page 6]