wdiff rfc4937.original rfc4937.txt

Internet Draft Peter
Network Working Group P. Arberg
Request for Comments: 4937 Redback Networks
Intended status: Best Current Practice
Expiration Date: April 2007 Vince
Category: Informational V. Mammoliti
Cisco Systems

October 2006
June 2007

IANA Considerations for PPP over Ethernet (PPPoE)

draft-arberg-pppoe-iana-03.txt

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Abstract

This document describes the IANA considerations for the PPP over
Ethernet (PPPoE) protocol.

Table of Contents

1. Introduction............................................... 2
1.1 Terminology.............................................. 2
1.2 Introduction ....................................................2
1.1. Terminology ................................................2
1.2. Specification of Requirements............................ 2 Requirements ..............................2
2. IANA Considerations........................................ 3
2.1 Considerations .............................................2
2.1. Registration Policies for PPPoE TAG Values............... 3
2.2 Values .................2
2.2. Reserved PPPoE TAG Values................................ 3
2.3 Values ..................................3
2.3. Registration Policies for PPPoE Code fields.............. 4
2.4 Fields ................3
2.4. Reserved PPPoE Code fields............................... 4 fields .................................4
3. Security Considerations.................................... 4 Considerations .........................................4
4. References................................................. 5
4.1 References ......................................................4
4.1. Normative References..................................... 5
4.2 References .......................................4
4.2. Informative References................................... 5
Author's Address........................................... 5
Full Copyright Statement................................... 6
Intellectual Property Statement............................ 6 References .....................................4

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 fields, which are or have been in use on
the Internet.

1.1

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

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].

2. IANA Considerations

The PPPoE protocol protocol, as defined in [RFC2516] [RFC2516], defines two name spaces
that requires require registration, the PPPoE TAG and the PPPoE Code field.

2.1

2.1. Registration Policies for PPPoE TAG Values

IANA shall 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 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 usage, as well as a point of
contact
contact, MUST be provided for any assignment from this registry. A
document reference SHOULD also be provided.

2.2

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] [RFC4938]
263 0x0107 Metrics See the reference [BERRY] [RFC4938]
264 0x0108 Sequence Number See the reference [BERRY] [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 [ARBERG] [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]

2.3

2.3. Registration Policies for PPPoE Code fields Fields

IANA shall 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 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 usage,
as well as a point of contact contact, MUST be provided for any assignment
from this registry.

A document reference SHOULD also be provided.

2.4

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] [RFC4938]
11 0x0b PADC, Session-Credit Response See the reference [BERRY] [RFC4938]
12 0x0c PADQ, Quality See the reference [BERRY] [RFC4938]

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 such, should help remove the possibility for the same PPPoE
code field and PPPoE TAG value being to be used for different
functionalities.

4. References

4.1

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 Mamakos, L., Lidl Lidl, K., Evarts Evarts, J., Carrel Carrel, D., Simone Simone, D.,
Wheeler R.,
and R. Wheeler, "A Method for Transmitting PPP Over
Ethernet (PPPoE)", RFC 2516, February 1999

4.2 1999.

4.2. Informative References

[CARREL] Carrel D., Simone D., Ho C., Stoner T., C. and T. Stoner, "Extensions to a
Method for Transmitting PPP Over Ethernet (PPPoE)", work Work in progress.

[BERRY] Berry B., Holgate H.,
Progress.

[RFC4938] Berry, B. and H. Holgate, "PPP Over Ethernet (PPPoE)
Extensions for Credit Flow and Link Metrics",
work in progress.

[ARBERG] Arberg RFC 4938, May
2007.

[RFC4638] Arberg, P., Kourkouzelis Kourkouzelis, D., Duckett Duckett, M., Anschutz Anschutz, T.,
Moisand J.,
and J. Moisand, "Accommodating an MTU/MRU greater than a Maximum Transit
Unit/Maximum Receive Unit (MTU/MRU) Greater Than 1492 in PPPoE", work in progress.
the Point-to-Point Protocol over Ethernet (PPPoE)", RFC
4638, September 2006.

Authors' Addresses

Peter Arberg
Redback Networks, Inc.
300 Holger Way
San Jose, CA 95134
USA
Email:
EMail: parberg@redback.com

Vince Mammoliti
Cisco Systems, Inc.
181 Bay Street, Suite 3400
Toronto, Ontario, M5J 2T3
Canada
EMail: vince@cisco.com

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