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.
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].
IANA has 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.
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 [RFC4938] 263 0x0107 Metrics See the reference [RFC4938] 264 0x0108 Sequence Number See the reference [RFC4938]
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 [RFC4638] 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]
IANA has 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.
This document focuses on IANA considerations for the PPPoE protocol, and as such, should help remove the possibility of the same PPPoE code field and PPPoE TAG value being used for different functionalities.
[CARREL] Carrel D., Simone D., Ho C. and T. Stoner, "Extensions to a Method for Transmitting PPP Over Ethernet (PPPoE)", Work in Progress.
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[RFC4938] Berry, B. and H. Holgate, "PPP Over Ethernet (PPPoE) Extensions for Credit Flow and Link Metrics", RFC 4938, June 2007.
[RFC4638] Arberg, P., Kourkouzelis, D., Duckett, M., Anschutz, T., and J. Moisand, "Accommodating a Maximum Transit Unit/Maximum Receive Unit (MTU/MRU) Greater Than 1492 in the Point-to-Point Protocol over Ethernet (PPPoE)", RFC 4638, September 2006.
Peter Arberg Redback Networks, Inc. 300 Holger Way San Jose, CA 95134 USA EMail: firstname.lastname@example.org
Vince Mammoliti Cisco Systems, Inc. 181 Bay Street, Suite 3400 Toronto, Ontario, M5J 2T3 Canada EMail: email@example.com
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RFC 4937 IANA Considerations for PPPoE June 2007
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