PPP IANA Considerations: IANA Considerations for the Point-to-Point Protocol (PPP)
A review requirement for assigning values in selected PPP registries
Schryver, V., "IANA Considerations for the Point-to-Point Protocol (PPP)", BCP 88, RFC 3818, DOI 10.17487/RFC3818, June 2004, <https://www.rfc-editor.org/info/rfc3818>.
@misc{rfc3818,
series = {Request for Comments},
number = 3818,
howpublished = {RFC 3818},
publisher = {RFC Editor},
doi = {10.17487/RFC3818},
url = {https://www.rfc-editor.org/info/rfc3818},
author = {V. Schryver},
title = {{IANA Considerations for the Point-to-Point Protocol (PPP)}},
pagetotal = 4,
year = 2004,
month = jun,
} RFC text
Contents
Network Working Group V. Schryver
Request for Comments: 3818 Rhyolite Software
BCP: 88 June 2004
Category: Best Current Practice
IANA Considerations for the Point-to-Point Protocol (PPP)
Status of this Memo
This document specifies an Internet Best Current Practices for the
Internet Community, and requests discussion and suggestions for
improvements. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2004).
Abstract
The charter of the Point-to-Point Protocol (PPP) Extensions working
group (pppext) includes the responsibility to "actively advance PPP's
most useful extensions to full standard, while defending against
further enhancements of questionable value." In support of that
charter, the allocation of PPP protocol and other assigned numbers
will no longer be "first come first served."
Introduction
The Point-to-Point protocol (PPP, RFC 1661 [1]) is a mature protocol
with a large number of subprotocols, encapsulations and other
extensions. The main protocol as well as its extensions involve many
name spaces in which values must be assigned.
http://www.iana.org/assignments/ppp-numbers contains a list of the
address spaces and their current assignments.
Historically, initial values in new name spaces have often been
chosen in the RFCs creating the name spaces. The IANA made
subsequent assignments with a "First Come First Served" policy. This
memo changes that policy for some PPP address spaces.
Most of the PPP names spaces are quiescent, but some continue to
attract proposed extensions. Extensions of PPP have been defined in
RFCs that are "Informational" and so are not subject to review.
These extensions usually require values assigned in one or more of
the PPP name spaces. Making these allocations require "IETF
Consensus" will ensure that proposals are reviewed.
Terminology
The terms "name space", "assigned value", and "registration" are used
here with the meanings defined in BCP 26 [2]. The policies "First
Come First Served" and "IETF Consensus" used here also have the
meanings defined in BCP 26.
IANA Considerations for PPP
IETF Consensus, usually through the Point-to-Point Protocol
Extensions working group (pppext), is required for assigning new
values in the following address spaces:
PPP DLL PROTOCOL NUMBERS
PPP LCP AND IPCP CODES
PPP LCP CONFIGURATION OPTION TYPES
PPP CCP CONFIGURATION OPTION TYPES
PPP CHAP AUTHENTICATION ALGORITHMS
PPP LCP FCS-ALTERNATIVES
PPP MULTILINK ENDPOINT DISCRIMINATOR CLASS
PPP LCP CALLBACK OPERATION FIELDS
PPP BRIDGING CONFIGURATION OPTION TYPES
PPP BRIDGING MAC TYPES
PPP BRIDGING SPANNING TREE
PPP IPCP CONFIGURATION OPTION TYPES
PPP IPV6CP CONFIGURATION OPTIONS
PPP IP-Compression-Protocol Types
Security Considerations
This memo deals with matters of process, not protocol.
Normative References
[1] Simpson, W., Ed., "The Point-to-Point Protocol (PPP)", STD 51,
RFC 1661, July 1994.
[2] Alvestrand, H. and T. Narten, "Guidelines for Writing an IANA
Considerations Section in RFCs", BCP 26, RFC 2434, October 1998.
Author's Address
Vernon Schryver
Rhyolite Software
2482 Lee Hill Drive
Boulder, Colorado 80302
EMail: vjs@rhyolite.com
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ISO Plain Language
On this page
§1Why Review PPP Assignments
PPP and its extensions use many name spaces where values must be assigned. Historically, IANA made later assignments on a first-come, first-served basis.
The RFC notes that some PPP name spaces continue to attract proposed extensions, including extensions described in Informational RFCs that are not otherwise subject to review. Requiring IETF Consensus for the affected assignments ensures proposals are reviewed.
PPP uses many registries, and some new extensions need values from them. This policy adds a review step before assigning values in the affected registries.
§2The New Assignment Policy
New values in the address spaces listed by the RFC require IETF Consensus, usually through the Point-to-Point Protocol Extensions working group, known as pppext. The list covers protocol numbers, LCP and IPCP codes, configuration options, authentication algorithms, multilink endpoint discriminator classes, bridging values and other PPP fields.
This changes the earlier first-come, first-served policy for these spaces. The RFC does not change PPP packet behavior; it deals with how assigned values are approved.
For the registries in the list, a request for a new value must receive IETF Consensus. The policy concerns assignment review, not how PPP sends data.
§3Scope and Security
The rule applies to the PPP address spaces named in the RFC; it does not say that every PPP registry uses this policy. The RFC defines the terminology for policies by reference to BCP 26.
The document states that it deals with process, not protocol, under Security Considerations.
The policy applies to the registries named in the document. The RFC says it addresses process rather than protocol security.