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+Network Working Group Internet Architecture Board
+Request for Comments: 2400 J. Postel
+Obsoletes: 2300, 2200, 2000, 1920, 1880, J. Reynolds
+1800, 1780, 1720, 1610, 1600, 1540, 1500, 1410, Editors
+1360, 1280, 1250, 1200, 1140, 1130, 1100, 1083 September 1998
+STD: 1
+Category: Standards Track
+
+
+ INTERNET OFFICIAL PROTOCOL STANDARDS
+
+
+Status of this Memo
+
+ This memo describes the state of standardization of protocols used in
+ the Internet as determined by the Internet Architecture Board (IAB).
+ This memo is an Internet Standard. Distribution of this memo is
+ unlimited.
+
+Copyright Notice
+
+ Copyright (C) The Internet Society (1998). All Rights Reserved.
+
+Table of Contents
+
+ Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
+ 1. The Standardization Process . . . . . . . . . . . . . . . 3
+ 2. The Request for Comments Documents . . . . . . . . . . . . 5
+ 3. Other Reference Documents . . . . . . . . . . . . . . . . 6
+ 3.1. Assigned Numbers . . . . . . . . . . . . . . . . . . . . 6
+ 3.2. Gateway Requirements . . . . . . . . . . . . . . . . . . 6
+ 3.3. Host Requirements . . . . . . . . . . . . . . . . . . . 6
+ 3.4. The MIL-STD Documents . . . . . . . . . . . . . . . . . 6
+ 4. Explanation of Terms . . . . . . . . . . . . . . . . . . . 7
+ 4.1. Definitions of Protocol State (Maturity Level) . . . . . 8
+ 4.1.1. Standard Protocol . . . . . . . . . . . . . . . . . . 8
+ 4.1.2. Draft Standard Protocol . . . . . . . . . . . . . . . 8
+ 4.1.3. Proposed Standard Protocol . . . . . . . . . . . . . . 8
+ 4.1.4. Experimental Protocol . . . . . . . . . . . . . . . . 8
+ 4.1.5. Informational Protocol . . . . . . . . . . . . . . . . 9
+ 4.1.6. Historic Protocol . . . . . . . . . . . . . . . . . . 9
+ 4.2. Definitions of Protocol Status (Requirement Level) . . . 9
+ 4.2.1. Required Protocol . . . . . . . . . . . . . . . . . . 9
+ 4.2.2. Recommended Protocol . . . . . . . . . . . . . . . . . 9
+ 4.2.3. Elective Protocol . . . . . . . . . . . . . . . . . . 9
+ 4.2.4. Limited Use Protocol . . . . . . . . . . . . . . . . . 9
+ 4.2.5. Not Recommended Protocol . . . . . . . . . . . . . . . 9
+ 5. The Standards Track . . . . . . . . . . . . . . . . . . . 10
+
+
+
+Internet Architecture Board Standards Track [Page 1]
+
+RFC 2400 Internet Standards September 1998
+
+
+ 5.1. The RFC Processing Decision Table . . . . . . . . . . . 10
+ 5.2. The Standards Track Diagram . . . . . . . . . . . . . . 11
+ 6. The Protocols . . . . . . . . . . . . . . . . . . . . . . 13
+ 6.1. Recent Changes . . . . . . . . . . . . . . . . . . . . . 13
+ 6.1.1. New RFCs . . . . . . . . . . . . . . . . . . . . . . . 13
+ 6.1.2. Other Changes . . . . . . . . . . . . . . . . . . . . 20
+ 6.2. Standard Protocols . . . . . . . . . . . . . . . . . . . 21
+ 6.3. Network-Specific Standard Protocols . . . . . . . . . . 23
+ 6.4. Draft Standard Protocols . . . . . . . . . . . . . . . . 24
+ 6.5. Proposed Standard Protocols . . . . . . . . . . . . . . 26
+ 6.6. Telnet Options . . . . . . . . . . . . . . . . . . . . . 33
+ 6.7. Experimental Protocols . . . . . . . . . . . . . . . . . 35
+ 6.8. Informational Protocols . . . . . . . . . . . . . . . . 38
+ 6.9. Historic Protocols . . . . . . . . . . . . . . . . . . . 40
+ 6.10 Obsolete Protocols . . . . . . . . . . . . . . . . . . . 41
+ 7. Contacts . . . . . . . . . . . . . . . . . . . . . . . . . 42
+ 7.1. IAB, IETF, and IRTF Contacts . . . . . . . . . . . . . . 42
+ 7.1.1. Internet Architecture Board (IAB) Contact . . . . . . 42
+ 7.1.2. Internet Engineering Task Force (IETF) Contact . . . . 42
+ 7.1.3. Internet Research Task Force (IRTF) Contact . . . . . 43
+ 7.2. Internet Assigned Numbers Authority (IANA) Contact . . . 44
+ 7.3. Request for Comments Editor Contact . . . . . . . . . . 45
+ 7.4. Network Information Center Contact . . . . . . . . . . . 45
+ 7.5. Sources for Requests for Comments . . . . . . . . . . . 46
+ 8. Security Considerations . . . . . . . . . . . . . . . . . 46
+ 9. Author's Address . . . . . . . . . . . . . . . . . . . . . 46
+ 10. Full Copyright Statement . . . . . . . . . . . . . . . . . 47
+
+Introduction
+
+ A discussion of the standardization process and the RFC document
+ series is presented first, followed by an explanation of the terms.
+ Sections 6.2 - 6.10 contain the lists of protocols in each stage of
+ standardization. Finally, there are pointers to references and
+ contacts for further information.
+
+ This memo is intended to be issued every one hundred RFCs; please be
+ sure the copy you are reading is current. Current copies may be
+ obtained from the Requests for Comments Editor (RFC-EDITOR) or from
+ the Internet Assigned Numbers Authority (IANA) (see the contact
+ information at the end of this memo).
+
+ See Section 6.1 for a description of recent changes. In the official
+ lists in sections 6.2 - 6.10, an asterisk (*) next to a protocol
+ denotes that it is new to this document or has been moved from one
+ protocol level to another, or differs from the previous edition of
+ this document.
+
+
+
+
+Internet Architecture Board Standards Track [Page 2]
+
+RFC 2400 Internet Standards September 1998
+
+
+1. The Standardization Process
+
+ The Internet Architecture Board maintains this list of documents that
+ define standards for the Internet protocol suite. See RFC-1601 for
+ the charter of the IAB and RFC-1160 for an explanation of the role
+ and organization of the IAB and its subsidiary groups, the Internet
+ Engineering Task Force (IETF) and the Internet Research Task Force
+ (IRTF). Each of these groups has a steering group called the IESG
+ and IRSG, respectively. The IETF develops these standards with the
+ goal of co-ordinating the evolution of the Internet protocols; this
+ co-ordination has become quite important as the Internet protocols
+ are increasingly in general commercial use. The definitive
+ description of the Internet standards process is found in RFC-2026.
+
+ The majority of Internet protocol development and standardization
+ activity takes place in the working groups of the IETF.
+
+ Protocols which are to become standards in the Internet go through a
+ series of states or maturity levels (proposed standard, draft
+ standard, and standard) involving increasing amounts of scrutiny and
+ testing. When a protocol completes this process it is assigned a STD
+ number (see RFC-1311). At each step, the Internet Engineering
+ Steering Group (IESG) of the IETF must make a recommendation for
+ advancement of the protocol.
+
+ To allow time for the Internet community to consider and react to
+ standardization proposals, a minimum delay of 6 months before a
+ proposed standard can be advanced to a draft standard and 4 months
+ before a draft standard can be promoted to standard.
+
+ It is general practice that no proposed standard can be promoted to
+ draft standard without at least two independent implementations (and
+ the recommendation of the IESG). Promotion from draft standard to
+ standard generally requires operational experience and demonstrated
+ interoperability of two or more implementations (and the
+ recommendation of the IESG).
+
+ In cases where there is uncertainty as to the proper decision
+ concerning a protocol a special review committee may be appointed
+ consisting of experts from the IETF, IRTF and the IAB with the
+ purpose of recommending an explicit action.
+
+ Advancement of a protocol to proposed standard is an important step
+ since it marks a protocol as a candidate for eventual standardization
+ (it puts the protocol "on the standards track"). Advancement to
+ draft standard is a major step which warns the community that, unless
+ major objections are raised or flaws are discovered, the protocol is
+ likely to be advanced to standard.
+
+
+
+Internet Architecture Board Standards Track [Page 3]
+
+RFC 2400 Internet Standards September 1998
+
+
+ Some protocols have been superseded by better ones or are otherwise
+ unused. Such protocols are still documented in this memorandum with
+ the designation "historic".
+
+ Because it is useful to document the results of early protocol
+ research and development work, some of the RFCs document protocols
+ which are still in an experimental condition. The protocols are
+ designated "experimental" in this memorandum. They appear in this
+ report as a convenience to the community and not as evidence of their
+ standardization.
+
+ Other protocols, such as those developed by other standards
+ organizations, or by particular vendors, may be of interest or may be
+ recommended for use in the Internet. The specifications of such
+ protocols may be published as RFCs for the convenience of the
+ Internet community. These protocols are labeled "informational" in
+ this memorandum.
+
+ In addition to the working groups of the IETF, protocol development
+ and experimentation may take place as a result of the work of the
+ research groups of the Internet Research Task Force, or the work of
+ other individuals interested in Internet protocol development. The
+ the documentation of such experimental work in the RFC series is
+ encouraged, but none of this work is considered to be on the track
+ for standardization until the IESG has made a recommendation to
+ advance the protocol to the proposed standard state.
+
+ A few protocols have achieved widespread implementation without the
+ approval of the IESG. For example, some vendor protocols have become
+ very important to the Internet community even though they have not
+ been recommended by the IESG. However, the IAB strongly recommends
+ that the standards process be used in the evolution of the protocol
+ suite to maximize interoperability (and to prevent incompatible
+ protocol requirements from arising). The use of the terms
+ "standard", "draft standard", and "proposed standard" are reserved in
+ any RFC or other publication of Internet protocols to only those
+ protocols which the IESG has approved.
+
+ In addition to a state (like "Proposed Standard"), a protocol is also
+ assigned a status, or requirement level, in this document. The
+ possible requirement levels ("Required", "Recommended", "Elective",
+ "Limited Use", and "Not Recommended") are defined in Section 4.2.
+ When a protocol is on the standards track, that is in the proposed
+ standard, draft standard, or standard state (see Section 5), the
+ status shown in Section 6 is the current status.
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 4]
+
+RFC 2400 Internet Standards September 1998
+
+
+ Few protocols are required to be implemented in all systems; this is
+ because there is such a variety of possible systems, for example,
+ gateways, routers, terminal servers, workstations, and multi-user
+ hosts. The requirement level shown in this document is only a one
+ word label, which may not be sufficient to characterize the
+ implementation requirements for a protocol in all situations. For
+ some protocols, this document contains an additional status paragraph
+ (an applicability statement). In addition, more detailed status
+ information may be contained in separate requirements documents (see
+ Section 3).
+
+2. The Request for Comments Documents
+
+ The documents called Request for Comments (or RFCs) are the working
+ notes of the "Network Working Group", that is the Internet research
+ and development community. A document in this series may be on
+ essentially any topic related to computer communication, and may be
+ anything from a meeting report to the specification of a standard.
+
+ Notice:
+
+ All standards are published as RFCs, but not all RFCs specify
+ standards.
+
+ Anyone can submit a document for publication as an RFC. Submissions
+ must be made via electronic mail to the RFC Editor (see the contact
+ information at the end of this memo, and see RFC 2223).
+
+ While RFCs are not refereed publications, they do receive technical
+ review from the task forces, individual technical experts, or the RFC
+ Editor, as appropriate.
+
+ The RFC series comprises a wide range of documents, ranging from
+ informational documents of general interests to specifications of
+ standard Internet protocols. In cases where submission is intended
+ to document a proposed standard, draft standard, or standard
+ protocol, the RFC Editor will publish the document only with the
+ approval of the IESG. For documents describing experimental work,
+ the RFC Editor will notify the IESG before publication, allowing for
+ the possibility of review by the relevant IETF working group or IRTF
+ research group and provide those comments to the author. See Section
+ 5.1 for more detail.
+
+ Once a document is assigned an RFC number and published, that RFC is
+ never revised or re-issued with the same number. There is never a
+ question of having the most recent version of a particular RFC.
+ However, a protocol (such as File Transfer Protocol (FTP)) may be
+ improved and re-documented many times in several different RFCs. It
+
+
+
+Internet Architecture Board Standards Track [Page 5]
+
+RFC 2400 Internet Standards September 1998
+
+
+ is important to verify that you have the most recent RFC on a
+ particular protocol. This "Internet Official Protocol Standards"
+ memo is the reference for determining the correct RFC for the current
+ specification of each protocol.
+
+ The RFCs are available from the RFC-EDITOR, and a number of other
+ sites. For more information about obtaining RFCs, see Sections 7.4
+ and 7.5.
+
+3. Other Reference Documents
+
+ There are three other reference documents of interest in checking the
+ current status of protocol specifications and standardization. These
+ are the Assigned Numbers, the Gateway Requirements, and the Host
+ Requirements. Note that these documents are revised and updated at
+ different times; in case of differences between these documents, the
+ most recent must prevail.
+
+ Also, one should be aware of the MIL-STD publications on IP, TCP,
+ Telnet, FTP, and SMTP. These are described in Section 3.4.
+
+3.1. Assigned Numbers
+
+ The "Assigned Numbers" document lists the assigned values of the
+ parameters used in the various protocols. For example, IP protocol
+ codes, TCP port numbers, Telnet Option Codes, ARP hardware types, and
+ Terminal Type names. Assigned Numbers was most recently issued as
+ RFC-1700.
+
+3.2. Requirements for IP Version 4 Routers
+
+ This document reviews the specifications that apply to gateways and
+ supplies guidance and clarification for any ambiguities.
+ Requirements for IP Version 4 Routers is RFC-1812.
+
+3.3. Host Requirements
+
+ This pair of documents reviews and updates the specifications that
+ apply to hosts, and it supplies guidance and clarification for any
+ ambiguities. Host Requirements was issued as RFC-1122 and RFC-1123.
+
+3.4. The MIL-STD Documents
+
+ The DoD MIL-STD Internet specifications are out of date and have been
+ discontinued. The DoD's Joint Technical Architecture (JTA) lists the
+ current set of IETF STDs and RFCs that the DoD intends to use in all
+ new and upgraded Command, Control, Communications, Computers, and
+ Intelligence (C4I) acquisitions. A copy of the JTA can be obtained
+
+
+
+Internet Architecture Board Standards Track [Page 6]
+
+RFC 2400 Internet Standards September 1998
+
+
+ from http://www-jta.itsi.disa.mil.
+
+4. Explanation of Terms
+
+ There are two independent categorization of protocols. The first is
+ the "maturity level" or STATE of standardization, one of "standard",
+ "draft standard", "proposed standard", "experimental",
+ "informational" or "historic". The second is the "requirement level"
+ or STATUS of this protocol, one of "required", "recommended",
+ "elective", "limited use", or "not recommended".
+
+ The status or requirement level is difficult to portray in a one word
+ label. These status labels should be considered only as an
+ indication, and a further description, or applicability statement,
+ should be consulted.
+
+ When a protocol is advanced to proposed standard or draft standard,
+ it is labeled with a current status.
+
+ At any given time a protocol occupies a cell of the following matrix.
+ Protocols are likely to be in cells in about the following
+ proportions (indicated by the relative number of Xs). A new protocol
+ is most likely to start in the (proposed standard, elective) cell, or
+ the (experimental, limited use) cell.
+
+ S T A T U S
+ Req Rec Ele Lim Not
+ +-----+-----+-----+-----+-----+
+ Std | X | XXX | XXX | | |
+ S +-----+-----+-----+-----+-----+
+ Draft | X | X | XXX | | |
+ T +-----+-----+-----+-----+-----+
+ Prop | | X | XXX | | |
+ A +-----+-----+-----+-----+-----+
+ Info | | | | | |
+ T +-----+-----+-----+-----+-----+
+ Expr | | | | XXX | |
+ E +-----+-----+-----+-----+-----+
+ Hist | | | | | XXX |
+ +-----+-----+-----+-----+-----+
+
+ What is a "system"?
+
+ Some protocols are particular to hosts and some to gateways; a few
+ protocols are used in both. The definitions of the terms below
+ will refer to a "system" which is either a host or a gateway (or
+ both). It should be clear from the context of the particular
+ protocol which types of systems are intended.
+
+
+
+Internet Architecture Board Standards Track [Page 7]
+
+RFC 2400 Internet Standards September 1998
+
+
+4.1. Definitions of Protocol State
+
+ Every protocol listed in this document is assigned to a "maturity
+ level" or STATE of standardization: "standard", "draft standard",
+ "proposed standard", "experimental", or "historic".
+
+ 4.1.1. Standard Protocol
+
+ The IESG has established this as an official standard protocol for
+ the Internet. These protocols are assigned STD numbers (see RFC-
+ 1311). These are separated into two groups: (1) IP protocol and
+ above, protocols that apply to the whole Internet; and (2)
+ network-specific protocols, generally specifications of how to do
+ IP on particular types of networks.
+
+ 4.1.2. Draft Standard Protocol
+
+ The IESG is actively considering this protocol as a possible
+ Standard Protocol. Substantial and widespread testing and comment
+ are desired. Comments and test results should be submitted to the
+ IESG. There is a possibility that changes will be made in a Draft
+ Standard Protocol before it becomes a Standard Protocol.
+
+ 4.1.3. Proposed Standard Protocol
+
+ These are protocol proposals that may be considered by the IESG
+ for standardization in the future. Implementation and testing by
+ several groups is desirable. Revision of the protocol
+ specification is likely.
+
+ 4.1.4. Experimental Protocol
+
+ A system should not implement an experimental protocol unless it
+ is participating in the experiment and has coordinated its use of
+ the protocol with the developer of the protocol.
+
+ Typically, experimental protocols are those that are developed as
+ part of an ongoing research project not related to an operational
+ service offering. While they may be proposed as a service
+ protocol at a later stage, and thus become proposed standard,
+ draft standard, and then standard protocols, the designation of a
+ protocol as experimental may sometimes be meant to suggest that
+ the protocol, although perhaps mature, is not intended for
+ operational use.
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 8]
+
+RFC 2400 Internet Standards September 1998
+
+
+ 4.1.5. Informational Protocol
+
+ Protocols developed by other standard organizations, or vendors,
+ or that are for other reasons outside the purview of the IESG, may
+ be published as RFCs for the convenience of the Internet community
+ as informational protocols.
+
+ 4.1.6. Historic Protocol
+
+ These are protocols that are unlikely to ever become standards in
+ the Internet either because they have been superseded by later
+ developments or due to lack of interest.
+
+4.2. Definitions of Protocol Status
+
+ This document lists a "requirement level" or STATUS for each
+ protocol. The status is one of "required", "recommended",
+ "elective", "limited use", or "not recommended".
+
+ 4.2.1. Required Protocol
+
+ A system must implement the required protocols.
+
+ 4.2.2. Recommended Protocol
+
+ A system should implement the recommended protocols.
+
+ 4.2.3. Elective Protocol
+
+ A system may or may not implement an elective protocol. The
+ general notion is that if you are going to do something like this,
+ you must do exactly this. There may be several elective protocols
+ in a general area, for example, there are several electronic mail
+ protocols, and several routing protocols.
+
+ 4.2.4. Limited Use Protocol
+
+ These protocols are for use in limited circumstances. This may be
+ because of their experimental state, specialized nature, limited
+ functionality, or historic state.
+
+ 4.2.5. Not Recommended Protocol
+
+ These protocols are not recommended for general use. This may be
+ because of their limited functionality, specialized nature, or
+ experimental or historic state.
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 9]
+
+RFC 2400 Internet Standards September 1998
+
+
+5. The Standards Track
+
+ This section discusses in more detail the procedures used by the RFC
+ Editor and the IESG in making decisions about the labeling and
+ publishing of protocols as standards.
+
+5.1. The RFC Processing Decision Table
+
+ Here is the current decision table for processing submissions by the
+ RFC Editor. The processing depends on who submitted it, and the
+ status they want it to have.
+
+ +==========================================================+
+ |**************| S O U R C E |
+ +==========================================================+
+ | Desired | IAB | IESG | IRSG | Other |
+ | Status | | | | |
+ +==========================================================+
+ | | | | | |
+ | Standard | Bogus | Publish | Bogus | Bogus |
+ | or | (2) | (1) | (2) | (2) |
+ | Draft | | | | |
+ | Standard | | | | |
+ +--------------+----------+----------+----------+----------+
+ | | | | | |
+ | | Refer | Publish | Refer | Refer |
+ | Proposed | (3) | (1) | (3) | (3) |
+ | Standard | | | | |
+ | | | | | |
+ +--------------+----------+----------+----------+----------+
+ | | | | | |
+ | | Notify | Publish | Notify | Notify |
+ | Experimental | (4) | (1) | (4) | (4) |
+ | Protocol | | | | |
+ | | | | | |
+ +--------------+----------+----------+----------+----------+
+ | | | | | |
+ | Information | Publish | Publish |Discretion|Discretion|
+ | or Opinion | (1) | (1) | (5) | (5) |
+ | Paper | | | | |
+ | | | | | |
+ +==========================================================+
+
+ (1) Publish.
+
+ (2) Bogus. Inform the source of the rules. RFCs specifying
+ Standard, or Draft Standard must come from the IESG, only.
+
+
+
+
+Internet Architecture Board Standards Track [Page 10]
+
+RFC 2400 Internet Standards September 1998
+
+
+ (3) Refer to an Area Director for review by a WG. Expect to see
+ the document again only after approval by the IESG.
+
+ (4) Notify both the IESG and IRSG. If no concerns are raised in
+ two weeks then do Discretion (5), else RFC Editor to resolve
+ the concerns or do Refer (3).
+
+ (5) RFC Editor's discretion. The RFC Editor decides if a review
+ is needed and if so by whom. RFC Editor decides to publish or
+ not.
+
+ Of course, in all cases the RFC Editor can request or make minor
+ changes for style, format, and presentation purposes.
+
+ The IESG has designated the IESG Secretary as its agent for
+ forwarding documents with IESG approval and for registering concerns
+ in response to notifications (4) to the RFC Editor. Documents from
+ Area Directors or Working Group Chairs may be considered in the same
+ way as documents from "other".
+
+5.2. The Standards Track Diagram
+
+ There is a part of the STATUS and STATE categorization that is called
+ the standards track. Actually, only the changes of state are
+ significant to the progression along the standards track, though the
+ status assignments may change as well.
+
+ The states illustrated by single line boxes are temporary states,
+ those illustrated by double line boxes are long term states. A
+ protocol will normally be expected to remain in a temporary state for
+ several months (minimum six months for proposed standard, minimum
+ four months for draft standard). A protocol may be in a long term
+ state for many years.
+
+ A protocol may enter the standards track only on the recommendation
+ of the IESG; and may move from one state to another along the track
+ only on the recommendation of the IESG. That is, it takes action by
+ the IESG to either start a protocol on the track or to move it along.
+
+ Generally, as the protocol enters the standards track a decision is
+ made as to the eventual STATUS, requirement level or applicability
+ (elective, recommended, or required) the protocol will have, although
+ a somewhat less stringent current status may be assigned, and it then
+ is placed in the the proposed standard STATE with that status. So
+ the initial placement of a protocol is into state 1. At any time the
+ STATUS decision may be revisited.
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 11]
+
+RFC 2400 Internet Standards September 1998
+
+
+ |
+ +<----------------------------------------------+
+ | ^
+ V 0 | 4
+ +-----------+ +===========+
+ | enter |-->----------------+-------------->|experiment |
+ +-----------+ | +=====+=====+
+ | |
+ V 1 |
+ +-----------+ V
+ | proposed |-------------->+
+ +--->+-----+-----+ |
+ | | |
+ | V 2 |
+ +<---+-----+-----+ V
+ | draft std |-------------->+
+ +--->+-----+-----+ |
+ | | |
+ | V 3 |
+ +<---+=====+=====+ V
+ | standard |-------------->+
+ +=====+=====+ |
+ |
+ V 5
+ +=====+=====+
+ | historic |
+ +===========+
+
+ The transition from proposed standard (1) to draft standard (2) can
+ only be by action of the IESG and only after the protocol has been
+ proposed standard (1) for at least six months.
+
+ The transition from draft standard (2) to standard (3) can only be by
+ action of the IESG and only after the protocol has been draft
+ standard (2) for at least four months.
+
+ Occasionally, the decision may be that the protocol is not ready for
+ standardization and will be assigned to the experimental state (4).
+ This is off the standards track, and the protocol may be resubmitted
+ to enter the standards track after further work. There are other
+ paths into the experimental and historic states that do not involve
+ IESG action.
+
+ Sometimes one protocol is replaced by another and thus becomes
+ historic, or it may happen that a protocol on the standards track is
+ in a sense overtaken by another protocol (or other events) and
+ becomes historic (state 5).
+
+
+
+
+Internet Architecture Board Standards Track [Page 12]
+
+RFC 2400 Internet Standards September 1998
+
+
+6. The Protocols
+
+ Subsection 6.1 lists recent RFCs and other changes. Subsections 6.2
+ - 6.10 list the standards in groups by protocol state.
+
+6.1. Recent Changes
+
+6.1.1. New RFCs:
+
+ 2428 - FTP Extensions for IPv6 and NATs
+
+ A Proposed Standard protocol.
+
+ 2427 - Multiprotocol Interconnect over Frame Relay
+
+ A Standard protocol.
+
+ 2426 - vCard MIME Directory Profile
+
+ A Proposed Standard protocol.
+
+ 2425 - A MIME Content-Type for Directory Information
+
+ A Proposed Standard protocol.
+
+ 2424 - Content Duration MIME Header Definition
+
+ A Proposed Standard protocol.
+
+ 2423 - VPIM Voice Message MIME Sub-type Registration
+
+ A Proposed Standard protocol.
+
+ 2422 - Toll Quality Voice - 32 kbit/s ADPCM MIME Sub-type
+ Registration
+
+ A Proposed Standard protocol.
+
+ 2421 - Voice Profile for Internet Mail - version 2
+
+ A Proposed Standard protocol.
+
+ 2420 - The PPP Triple-DES Encryption Protocol (3DESE)
+
+ A Proposed Standard protocol.
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 13]
+
+RFC 2400 Internet Standards September 1998
+
+
+ 2419 - The PPP DES Encryption Protocol, Version 2 (DESE-bis)
+
+ A Proposed Standard protocol.
+
+ 2418 - IETF Working Group Guidelines and Procedures
+
+ This is a Best Current Practices document and does not
+ specify any level of standard.
+
+ 2417 - Definitions of Managed Objects for Multicast over UNI
+ 3.0/3.1 based ATM Network
+
+ A Proposed Standard protocol.
+
+ 2416 - When TCP Starts Up With Four Packets Into Only Three
+ Buffers
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2415 - Simulation Studies of Increased Initial TCP Window Size
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2414 - Increasing TCP's Initial Window
+
+ An Experimental protocol.
+
+ 2413 - Dublin Core Metadata for Resource Discovery
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2412 - Not yet issued.
+
+ 2411 - Not yet issued.
+
+ 2410 - Not yet issued.
+
+ 2409 - Not yet issued.
+
+ 2408 - Not yet issued.
+
+ 2407 - Not yet issued.
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 14]
+
+RFC 2400 Internet Standards September 1998
+
+
+ 2406 - Not yet issued.
+
+ 2405 - Not yet issued.
+
+ 2404 - Not yet issued.
+
+ 2403 - Not yet issued.
+
+ 2402 - Not yet issued.
+
+ 2401 - Not yet issued.
+
+ 2400 - This memo.
+
+ 2399 - Not yet issued.
+
+ 2398 - Some Testing Tools for TCP Implementors
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2397 - The "data" URL scheme
+
+ A Proposed Standard protocol.
+
+ 2396 - Uniform Resource Identifiers (URI): Generic Syntax
+
+ A Draft Standard protocol.
+
+ 2395 - Not yet issued.
+
+ 2394 - Not yet issued.
+
+ 2393 - Not yet issued.
+
+ 2392 - Content-ID and Message-ID Uniform Resource Locators
+
+ A Proposed Standard protocol.
+
+ 2391 - Load Sharing using IP Network Address Translation (LSNAT)
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2390 - Inverse Address Resolution Protocol
+
+ A Draft Standard protocol.
+
+
+
+
+Internet Architecture Board Standards Track [Page 15]
+
+RFC 2400 Internet Standards September 1998
+
+
+ 2389 - Feature negotiation mechanism for the File Transfer
+ Protocol
+
+ A Proposed Standard protocol.
+
+ 2388 - Returning Values from Forms: multipart/form-data
+
+ A Proposed Standard protocol.
+
+ 2387 - The MIME Multipart/Related Content-type
+
+ A Proposed Standard protocol.
+
+ 2386 - A Framework for QoS-based Routing in the Internet
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2385 - Protection of BGP Sessions via the TCP MD5 Signature Option
+
+ A Proposed Standard protocol.
+
+ 2384 - POP URL Scheme
+
+ A Proposed Standard protocol.
+
+ 2383 - ST2+ over ATM Protocol Specification - UNI 3.1 Version
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2382 - A Framework for Integrated Services and RSVP over ATM
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2381 - Interoperation of Controlled-Load Service and Guaranteed
+ Service with ATM
+
+ A Proposed Standard protocol.
+
+ 2380 - RSVP over ATM Implementation Requirements
+
+ A Proposed Standard protocol.
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 16]
+
+RFC 2400 Internet Standards September 1998
+
+
+ 2379 - RSVP over ATM Implementation Guidelines
+
+ This is a Best Current Practices document and does not
+ specify any level of standard.
+
+ 2378 - Not yet issued.
+
+ 2377 - Not yet issued.
+
+ 2376 - XML Media Types
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2375 - IPv6 Multicast Address Assignments
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2374 - An IPv6 Aggregatable Global Unicast Address Format
+
+ A Proposed Standard protocol.
+
+ 2373 - IP Version 6 Addressing Architecture
+
+ A Proposed Standard protocol.
+
+ 2372 - Transaction Internet Protocol - Requirements and
+ Supplemental Information
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2371 - Transaction Internet Protocol Version 3.0
+
+ A Proposed Standard protocol.
+
+ 2370 - The OSPF Opaque LSA Option
+
+ A Proposed Standard protocol.
+
+ 2369 - The Use of URLs as Meta-Syntax for Core Mail List Commands
+ and their Transport through Message Header Field
+
+ A Proposed Standard protocol.
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 17]
+
+RFC 2400 Internet Standards September 1998
+
+
+ 2368 - The mailto URL scheme
+
+ A Proposed Standard protocol.
+
+ 2367 - PF_KEY Key Management API, Version 2
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2366 - Definitions of Managed Objects for Multicast over UNI
+ 3.0/3.1 based ATM Networks
+
+ A Proposed Standard protocol.
+
+ 2365 - Administratively Scoped IP Multicast
+
+ This is a Best Current Practices document and does not
+ specify any level of standard.
+
+ 2364 - PPP Over AAL
+
+ A Proposed Standard protocol.
+
+ 2363 - PPP Over FUNI
+
+ A Proposed Standard protocol.
+
+ 2362 - Protocol Independent Multicast-Sparse Mode (PIM-SM):
+ Protocol Specification
+
+ An Experimental protocol.
+
+ 2361 - WAVE and AVI Codec Registries
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2360 - Guide for Internet Standards Writers
+
+ This is a Best Current Practices document and does not
+ specify any level of standard.
+
+ 2359 - IMAP4 UIDPLUS extension
+
+ A Proposed Standard protocol.
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 18]
+
+RFC 2400 Internet Standards September 1998
+
+
+ 2358 - Definitions of Managed Objects for the Ethernet-like
+ Interface Types
+
+ A Proposed Standard protocol.
+
+ 2357 - IETF Criteria for Evaluating Reliable Multicast Transport
+ and Application Protocols
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2356 - Sun's SKIP Firewall Traversal for Mobile IP
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2355 - TN3270 Enhancements
+
+ A Draft Standard protocol.
+
+ 2354 - Options for Repair of Streaming Media
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2353 - APPN/HPR in IP Networks APPN Implementers' Workshop Closed
+ Pages Document
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2350 - Expectations for Computer Security Incident Response
+
+ This is a Best Current Practices document and does not
+ specify any level of standard.
+
+ 2340 - Nortel's Virtual Network Switching (VNS) Overview
+
+ This is an information document and does not specify any
+ level of standard.
+
+ 2336 - Classical IP and ARP over ATM to NHRP Transition
+
+ This is an information document and does not specify any
+ level of standard.
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 19]
+
+RFC 2400 Internet Standards September 1998
+
+
+6.1.2. Other Changes:
+
+ The following are changes to protocols listed in the previous
+ edition.
+
+ 2073 - An IPv6 Provider-Based Unicast Address Format
+
+ Moved to Historic.
+
+ 1884 - IP Version 6 Addressing Architecture
+
+ Moved to Historic.
+
+ 0658 - Telnet Output Linefeed Disposition
+
+ Moved to Historic.
+
+ 0657 - Telnet Output Vertical Tab Disposition Option
+
+ Moved to Historic.
+
+ 0656 - Telnet Output Vertical Tabstops Option
+
+ Moved to Historic.
+
+ 0655 - Telnet Output Formfeed Disposition Option
+
+ Moved to Historic.
+
+ 0654 - Telnet Output Horizontal Tab Disposition Option
+
+ Moved to Historic.
+
+ 0653 - Telnet Output Horizontal Tabstops Option
+
+ Moved to Historic.
+
+ 0652 - Telnet Output Carriage-Return Disposition Option
+
+ Moved to Historic.
+
+
+
+
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 20]
+
+RFC 2400 Internet Standards September 1998
+
+
+6.2. Standard Protocols
+
+Protocol Name Status RFC STD *
+======== ===================================== ======== ==== === =
+-------- Internet Official Protocol Standards Req 2400 1
+-------- Assigned Numbers Req 1700 2
+-------- Host Requirements - Communications Req 1122 3
+-------- Host Requirements - Applications Req 1123 3
+IP Internet Protocol Req 791 5
+ as amended by:--------
+-------- IP Subnet Extension Req 950 5
+-------- IP Broadcast Datagrams Req 919 5
+-------- IP Broadcast Datagrams with Subnets Req 922 5
+ICMP Internet Control Message Protocol Req 792 5
+IGMP Internet Group Multicast Protocol Rec 1112 5
+UDP User Datagram Protocol Rec 768 6
+TCP Transmission Control Protocol Rec 793 7
+TELNET Telnet Protocol Rec 854,855 8
+FTP File Transfer Protocol Rec 959 9
+SMTP Simple Mail Transfer Protocol Rec 821 10
+SMTP-SIZE SMTP Service Ext for Message Size Rec 1870 10
+SMTP-EXT SMTP Service Extensions Rec 1869 10
+MAIL Format of Electronic Mail Messages Rec 822 11
+CONTENT Content Type Header Field Rec 1049 11
+NTPV2 Network Time Protocol (Version 2) Rec 1119 12
+DOMAIN Domain Name System Rec 1034,1035 13
+DNS-MX Mail Routing and the Domain System Rec 974 14
+SNMP Simple Network Management Protocol Rec 1157 15
+SMI Structure of Management Information Rec 1155 16
+Concise-MIB Concise MIB Definitions Rec 1212 16
+MIB-II Management Information Base-II Rec 1213 17
+NETBIOS NetBIOS Service Protocols Ele 1001,1002 19
+ECHO Echo Protocol Rec 862 20
+DISCARD Discard Protocol Ele 863 21
+CHARGEN Character Generator Protocol Ele 864 22
+QUOTE Quote of the Day Protocol Ele 865 23
+USERS Active Users Protocol Ele 866 24
+DAYTIME Daytime Protocol Ele 867 25
+TIME Time Server Protocol Ele 868 26
+TFTP Trivial File Transfer Protocol Ele 1350 33
+TP-TCP ISO Transport Service on top of the TCP Ele 1006 35
+ETHER-MIB Ethernet MIB Ele 1643 50
+PPP Point-to-Point Protocol (PPP) Ele 1661 51
+PPP-HDLC PPP in HDLC Framing Ele 1662 51
+IP-SMDS IP Datagrams over the SMDS Service Ele 1209 52
+POP3 Post Office Protocol, Version 3 Ele 1939 53
+OSPF2 Open Shortest Path First Routing V2 Ele 2328 54
+IP-FR Multiprotocol over Frame Relay Ele 2427 55*
+
+
+
+Internet Architecture Board Standards Track [Page 21]
+
+RFC 2400 Internet Standards September 1998
+
+
+[Note: an asterisk at the end of a line indicates a change from the
+previous edition of this document.]
+
+Applicability Statements:
+
+ IGMP -- The Internet Architecture Board intends to move towards
+ general adoption of IP multicasting, as a more efficient solution
+ than broadcasting for many applications. The host interface has been
+ standardized in RFC-1112; however, multicast-routing gateways are in
+ the experimental stage and are not widely available. An Internet
+ host should support all of RFC-1112, except for the IGMP protocol
+ itself which is optional; see RFC-1122 for more details. Even
+ without IGMP, implementation of RFC-1112 will provide an important
+ advance: IP-layer access to local network multicast addressing. It
+ is expected that IGMP will become recommended for all hosts and
+ gateways at some future date.
+
+ SMI, MIB-II SNMP -- The Internet Architecture Board recommends that
+ all IP and TCP implementations be network manageable. At the current
+ time, this implies implementation of the Internet MIB-II (RFC-1213),
+ and at least the recommended management protocol SNMP (RFC-1157).
+
+ RIP -- The Routing Information Protocol (RIP) is widely implemented
+ and used in the Internet. However, both implementors and users
+ should be aware that RIP has some serious technical limitations as a
+ routing protocol. The IETF is currently devpeloping several
+ candidates for a new standard "open" routing protocol with better
+ properties than RIP. The IAB urges the Internet community to track
+ these developments, and to implement the new protocol when it is
+ standardized; improved Internet service will result for many users.
+
+ TP-TCP -- As OSI protocols become more widely implemented and used,
+ there will be an increasing need to support interoperation with the
+ TCP/IP protocols. The Internet Engineering Task Force is formulating
+ strategies for interoperation. RFC-1006 provides one interoperation
+ mode, in which TCP/IP is used to emulate TP0 in order to support OSI
+ applications. Hosts that wish to run OSI connection-oriented
+ applications in this mode should use the procedure described in RFC-
+ 1006. In the future, the IAB expects that a major portion of the
+ Internet will support both TCP/IP and OSI (inter-)network protocols
+ in parallel, and it will then be possible to run OSI applications
+ across the Internet using full OSI protocol "stacks".
+
+ OSPF -- RFC 1370 is an applicability statement for OSPF.
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 22]
+
+RFC 2400 Internet Standards September 1998
+
+
+6.3. Network-Specific Standard Protocols
+
+All Network-Specific Standards have Elective status.
+
+Protocol Name State RFC STD *
+======== ===================================== ===== ===== === =
+IP-ATM Classical IP and ARP over ATM Prop 2225
+ATM-ENCAP Multiprotocol Encapsulation over ATM Prop 1483
+IP-TR-MC IP Multicast over Token-Ring LANs Prop 1469
+IP-FDDI Transmission of IP and ARP over FDDI Net Std 1390 36
+IP-X.25 X.25 and ISDN in the Packet Mode Draft 1356
+ARP Address Resolution Protocol Std 826 37
+RARP A Reverse Address Resolution Protocol Std 903 38
+IP-ARPA Internet Protocol on ARPANET Std BBN1822 39
+IP-WB Internet Protocol on Wideband Network Std 907 40
+IP-E Internet Protocol on Ethernet Networks Std 894 41
+IP-EE Internet Protocol on Exp. Ethernet Nets Std 895 42
+IP-IEEE Internet Protocol on IEEE 802 Std 1042 43
+IP-DC Internet Protocol on DC Networks Std 891 44
+IP-HC Internet Protocol on Hyperchannel Std 1044 45
+IP-ARC Transmitting IP Traffic over ARCNET Nets Std 1201 46
+IP-SLIP Transmission of IP over Serial Lines Std 1055 47
+IP-NETBIOS Transmission of IP over NETBIOS Std 1088 48
+IP-IPX Transmission of 802.2 over IPX Networks Std 1132 49
+IP-HIPPI IP over HIPPI Draft 2067
+
+[Note: an asterisk at the end of a line indicates a change from the
+previous edition of this document.]
+
+Applicability Statements:
+
+ It is expected that a system will support one or more physical
+ networks and for each physical network supported the appropriate
+ protocols from the above list must be supported. That is, it is
+ elective to support any particular type of physical network, and for
+ the physical networks actually supported it is required that they be
+ supported exactly according to the protocols in the above list. See
+ also the Host and Gateway Requirements RFCs for more specific
+ information on network-specific ("link layer") protocols.
+
+
+
+
+
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 23]
+
+RFC 2400 Internet Standards September 1998
+
+
+6.4. Draft Standard Protocols
+
+Protocol Name Status RFC
+======== ===================================== ============== =====
+URI-GEN URI: Generic Syntax Elective 2396*
+IARP Inverse Address Resolution Protocol Elective 2390*
+TFTP-Opt TFTP Options Elective 2349
+TFTP-Blk TFTP Blocksize Option Elective 2348
+TFTP-Ext TFTP Option Extension Elective 2347
+ONE-PASS One-Time Password System Elective 2289
+SMTP-Pipe SMTP Serv. Ext. for Command Pipelining Elective 2197
+DHCP-BOOTP DHCP Options and BOOTP Extensions Recommended 2132
+DHCP Dynamic Host Configuration Protocol Elective 2131
+FRAME-MIB Management Information Base for Frame Elective 2115
+------- Clarifications and Extensions BOOTP Elective 1542
+DHCP-BOOTP Interoperation Between DHCP and BOOTP Elective 1534
+BOOTP Bootstrap Protocol Recommended 951,2132
+MIME-CONF MIME Conformance Criteria Elective 2049
+MIME-MSG MIME Msg Header Ext for Non-ASCII Elective 2047
+MIME-MEDIA MIME Media Types Elective 2046
+MIME Multipurpose Internet Mail Extensions Elective 2045
+PPP-CHAP PPP Challenge Handshake Authentication Elective 1994
+PPP-MP PPP Multilink Protocol Elective 1990
+PPP-LINK PPP Link Quality Monitoring Elective 1989
+COEX-MIB Coexistence between SNMPV1 & SNMPV2 Elective 1908
+SNMPv2-MIB MIB for SNMPv2 Elective 1907
+TRANS-MIB Transport Mappings for SNMPv2 Elective 1906
+OPS-MIB Protocol Operations for SNMPv2 Elective 1905
+CONF-MIB Conformance Statements for SNMPv2 Elective 1904
+CONV-MIB Textual Conventions for SNMPv2 Elective 1903
+SMIV2 SMI for SNMPv2 Elective 1902
+CON-MD5 Content-MD5 Header Field Elective 1864
+OSPF-MIB OSPF Version 2 MIB Elective 1850
+STR-REP String Representation ... Elective 1779
+X.500syn X.500 String Representation ... Elective 1778
+X.500lite X.500 Lightweight ... Elective 1777
+BGP-4-APP Application of BGP-4 Elective 1772
+BGP-4 Border Gateway Protocol 4 Elective 1771
+PPP-DNCP PPP DECnet Phase IV Control Protocol Elective 1762
+RMON-MIB Remote Network Monitoring MIB Elective 1757
+802.5-MIB IEEE 802.5 Token Ring MIB Elective 1748
+RIP2-MIB RIP Version 2 MIB Extension Elective 1724
+RIP2 RIP Version 2-Carrying Additional Info. Elective 1723
+RIP2-APP RIP Version 2 Protocol App. Statement Elective 1722
+SIP-MIB SIP Interface Type MIB Elective 1694
+------- Def Man Objs Parallel-printer-like Elective 1660
+------- Def Man Objs RS-232-like Elective 1659
+------- Def Man Objs Character Stream Elective 1658
+
+
+
+Internet Architecture Board Standards Track [Page 24]
+
+RFC 2400 Internet Standards September 1998
+
+
+BGP-4-MIB BGP-4 MIB Elective 1657
+SMTP-8BIT SMTP Service Ext or 8bit-MIMEtransport Elective 1652
+OSI-NSAP Guidelines for OSI NSAP Allocation Elective 1629
+ISO-TS-ECHO Echo for ISO-8473 Elective 1575
+DECNET-MIB DECNET MIB Elective 1559
+BRIDGE-MIB BRIDGE-MIB Elective 1493
+NTPV3 Network Time Protocol (Version 3) Elective 1305
+IP-MTU Path MTU Discovery Elective 1191
+FINGER Finger Protocol Elective 1288
+NICNAME WhoIs Protocol Elective 954
+
+[Note: an asterisk at the end of a line indicates a change from the
+previous edition of this document.]
+
+Applicability Statements:
+
+ PPP -- Point to Point Protocol is a method of sending IP over serial
+ lines, which are a type of physical network. It is anticipated that
+ PPP will be advanced to the network-specifics standard protocol state
+ in the future.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 25]
+
+RFC 2400 Internet Standards September 1998
+
+
+6.5. Proposed Standard Protocols
+
+Protocol Name Status RFC
+======== ===================================== ============== =====
+-------- FTP Extensions for IPv6 and NATs Elective 2428*
+MIME-VCARD vCard MIME Directory Profile Elective 2426*
+TXT-DIR MIME Content-Type for Directory Info Elective 2425*
+CONT-DUR Content-Duration MIME Header Elective 2424*
+MIME-VPIM VPIM Voice Message Elective 2423*
+MIME-ADPCM Toll Quality Voice - 32 kbit/s ADPC Elective 2422*
+MIME-VP2 Voice Profile for Internet Mail V2 Elective 2421*
+-------- Multicast/UNI 3.0/3.1 based ATM MIB Elective 2417*
+DATA-URL "data" URL scheme Elective 2397*
+CIDMID-URL Content-ID and Message-ID URLs Elective 2392*
+FTP-FNEGO Feature negotiation mechanism for FTP Elective 2389*
+-------- MIME Multipart/form-data Elective 2388*
+MIME-RELAT MIME Multipart/Related Content-type Elective 2387*
+-------- Protection of BGP Sessions via TCP MD5 Elective 2385*
+POP-URL POP URL Scheme Elective 2384*
+-------- Interoperation of CLS and GS with ATM Elective 2381*
+-------- RSVP over ATM Imple. Requirements Elective 2380*
+-------- IPv6 Aggreg. Global Unicast Addr. Format Elective 2374*
+-------- IPv6 Addressing Architecture Elective 2373*
+TIPV3 Transaction Internet Protocol V3 Elective 2371*
+OSPF-LSA OSPF Opaque LSA Option Elective 2370*
+-------- Use of URLs as Meta-Syntax... Elective 2369*
+URLMAILTO mailto URL scheme Elective 2368*
+PPP-AAL PPP Over AAL Elective 2364*
+PPP-FUNI PPP Over FUNI Elective 2363*
+IMAP4UIDPL IMAP4 UIDPLUS Extension Elective 2359*
+-------- Ethernet-like Interface Types MIB Elective 2358*
+MOBILIPREV Reverse Tunneling for Mobile IP Elective 2344
+IMAP4NAME IMAP4 Namespace Elective 2342
+VRRP Virtual Router Redundancy Protocol Elective 2338
+NHRP-SCSP Distributed NHRP Service Using SCSP Elective 2335
+SCSP Server Cache Synchronization Protocol Elective 2334
+NHRP-APP NHRP Protocol Applicability Statement Elective 2333
+NHRP NBMA Next Hop Resolution Protocol Elective 2332
+UNI-SIG ATM Sig Support (IPOA) UNI Signalling Elective 2331
+SDP Session Description Protocol Elective 2327
+RTSP Real Time Streaming Protocol Elective 2326
+IPOA-MIB Classical IP and ARP Over ATM MIB Elective 2320
+DNS-NCACHE Negative Caching of DNS Queries Elective 2308
+SMFAX-IM Simple Mode of FAX Using Internet Mail Elective 2305
+MINFAX-IM Minimal FAX addr format in Internet Mail Elective 2304
+MIN-PSTN Min. PSTN addr format in Internet Mail Elective 2303
+TIFF Tag Image File Format Elective 2302
+FFIF File Format for Internet Fax Elective 2301
+
+
+
+Internet Architecture Board Standards Track [Page 26]
+
+RFC 2400 Internet Standards September 1998
+
+
+EMF-MDN Extensible Message Format for MDN Elective 2298
+OR-ADD O/R Address hierarchy in X.500 Elective 2294
+SUBTABLE Tables and Subtrees in X.500 Elective 2293
+-------- Mobile-IPv4 Config Opt for PPP IPCP Elective 2290
+SLM-APP System-Level Managed Objects for Apps Elective 2287
+PPP-EAP PPP Extensible Authentication Protocol Elective 2284
+MEXT-BGP4 Multiprotocol Extensions for BGP-4 Elective 2283
+RPSL Routing Policy Specification Language Elective 2280
+UTF-8 UTF-8 transformation format of ISO 10646 Elective 2279
+VACM-SNMP View-based Access Control Model for SMMP Elective 2275
+USM-SNMPV3 User-based Security Model for SNMPv3 Elective 2274
+SNMPV3-APP SNMPv3 Applications Elective 2273
+MPD-SNMP Message Processing & Dispatching SNMP Elective 2272
+ARCH-SNMP Architecture Describing SNMP Frameworks Elective 2271
+-------- IEEE 802.12 Repeater MIB Elective 2266
+AGENTX Agent Extensibility Protocol Elective 2257
+-------- Summary of the X.500(96) with LDAPv3 Elective 2256
+LDAP-URL LDAP URL Format Elective 2255
+STR-LDAP String Rep of LDAP Search Filters Elective 2254
+LDAP3-UTF8 LDAPv3: UTF-8 String Rep Elective 2253
+LDAP3-ATD LDAP3-: Attribute Syntax Definitions Elective 2252
+LDAPV3 Lightweight Directory Access Protocol Elective 2251
+RTP-MPEG RTP Payload Format for MPEG1/MPEG2 Elective 2250
+MAIL-MIB Mail Monitoring MIB Elective 2249
+NSM-MIB Network Services Monitoring MIB Elective 2248
+-------- Using Domains LDAP/X.500 Dist. Names Elective 2247
+SASL-ANON Anonymous SASL Mechanism Elective 2245
+ACAP Application Configuration Access Elective 2244
+OTP-ER OTP Extended Responses Elective 2243
+NETWAREIP NetWare/IP Domain Name and Information Elective 2242
+DHCP-NDS DHCP Options for Novell Directory Serv. Elective 2241
+MAUS-MIB IEEE 802.3 Medium Attachment Units MIB Elective 2239
+HPR-MIB Definitions of Managed Objects for HPR Elective 2238
+IGMP Internet Group Management Protocol V2 Elective 2236
+ABNF Augmented BNF for Syntax Specifications Elective 2234
+INTERGRMIB Interfaces Group MIB Elective 2233
+DLUR-MIB Definitions of Managed Objects for DLUR Elective 2232
+MIME-EXT MIME Parameter Value & Encoded Word Ext Elective 2231
+FTPSECEXT FTP Security Extensions Elective 2228
+--------- Simple Hit-Metering, Usage-Limiting HTTP Elective 2227
+--------- IP Broadcast over ATM Networks Elective 2226
+SASL Simple Authentication and Security Layer Elective 2222
+IMAP4LOGIN IMAP4 Login Referrals Elective 2221
+--------- Schema for Internet White Pages Service Elective 2218
+--------- Characterization Parameters for ISNE Elective 2215
+--------- Integrated Services MIB Guar Serv Ext Elective 2214
+--------- Integrated Services MIB using SMIv2 Elective 2213
+GQOS Spec. of Guaranteed Quality of Service Elective 2212
+
+
+
+Internet Architecture Board Standards Track [Page 27]
+
+RFC 2400 Internet Standards September 1998
+
+
+--------- Spec. of Controlled-Load Net Ele Serv Elective 2211
+RSVP-IS Use of RSVP with IETF Integrated Serv Elective 2210
+RSVP-MPR RSVP Messaging Processing Rules Elective 2209
+RSVP-APP RSVP Applicability Statement Elective 2208
+RSVP-IPSEC RSVP Extensions for IPSEC Data Flows Elective 2207
+RSVP-MIB RSVP Management Information Base Elective 2206
+RSVP Resource ReSerVation Protocol V1 Elective 2205
+RPCSEC-GSS RPCSEC_GSS Protocol Specification Elective 2203
+RTP-RAD RTP Payload for Redundant Audio Data Elective 2198
+IMAPPOPAU IMAP/POP AUTHorize Extension Elective 2195
+IMAP4MAIL IMAP4 Mailbox Referrals Elective 2193
+IMAP-URL IMAP URL Scheme Elective 2192
+--------- RTP Payload Format for H.263 Video ST Elective 2190
+--------- The Content-Disposition Header Field Elective 2183
+DNS-CLAR Clarifications to the DNS Specification Elective 2181
+IMAP4-IDLE IMAP4 IDLE command Elective 2177
+SLP Service Location Protocol Elective 2165
+--------- X.500/LDAP Directory/MIXER Address Map. Elective 2164
+DNS-MCGAM Using DNS to Distribute MCGAM Elective 2163
+--------- Carrying PostScript in X.400 and MIME Elective 2160
+--------- A MIME Body Part for FAX Elective 2159
+--------- X.400 Image Body Parts Elective 2158
+--------- Mapping between X.400 and RFC-822/MIME Elective 2157
+MIXER Mime Internet X.400 Enhanced Relay Elective 2156
+APPN-MIB Definitions of Managed Objects for APPN Elective 2155
+IPv6-Jumbo TCP and UDP over IPv6 Jumbograms Elective 2147
+MAIL-SERV Mailbox Names for Common Services Elective 2142
+URN-SYNTAX URN Syntax Elective 2141
+RADIUS Remote Authentication Dial In Service Elective 2138
+SDNSDU Secure Domain Name System Dynamic Update Elective 2137
+DNS-UPDATE Dynamic Updates in the DNS Elective 2136
+DC-MIB Dial Control MIB using SMIv2 Elective 2128
+ISDN-MIB ISDN MIB using SMIv2 Elective 2127
+ITOT ISO Transport Service on top of TCP Elective 2126
+BAP-BACP PPP-BAP, PPP-BACP Elective 2125
+VEMMI-URL VEMMI URL Specification Elective 2122
+ROUT-ALERT IP Router Alert Option Elective 2113
+MHTML MIME E-mail Encapsulation Elective 2110
+HTTP-STATE HTTP State Management Mechanism Elective 2109
+802.3-MIB 802.3 Repeater MIB using SMIv2 Elective 2108
+PPP-NBFCP PPP NetBIOS Frames Control Protocol Elective 2097
+TABLE-MIB IP Forwarding Table MIB Elective 2096
+RIP-TRIG Trigger RIP Elective 2091
+IMAP4-LIT IMAP4 non-synchronizing literals Elective 2088
+IMAP4-QUO IMAP4 QUOTA extension Elective 2087
+IMAP4-ACL IMAP4 ACL Extension Elective 2086
+HMAC-MD5 HMAC-MD5 IP Auth. with Replay Prevention Elective 2085
+RIP2-MD5 RIP-2 MD5 Authentication Elective 2082
+
+
+
+Internet Architecture Board Standards Track [Page 28]
+
+RFC 2400 Internet Standards September 1998
+
+
+RIPNG-IPV6 RIPng for IPv6 Elective 2080
+URI-ATT URI Attribute Type and Object Class Elective 2079
+GSSAP Generic Security Service Application Elective 2078
+MIME-MODEL Model Primary MIME Types Elective 2077
+RMON-MIB Remote Network Monitoring MIB Elective 2074
+HTML-INT HTML Internationalization Elective 2070
+DAA Digest Access Authentication Elective 2069
+HTTP-1.1 Hypertext Transfer Protocol -- HTTP/1.1 Elective 2068
+DNS-SEC Domain Name System Security Extensions Elective 2065
+IMAPV4 Internet Message Access Protocol v4rev1 Elective 2060
+URLZ39.50 Uniform Resource Locators for Z39.50 Elective 2056
+SNANAU-APP SNANAU APPC MIB using SMIv2 Elective 2051
+PPP-SNACP PPP SNA Control Protocol Elective 2043
+ENTITY-MIB Entity MIB using SMIv2 Elective 2037
+RTP-JPEG RTP Payload Format for JPEG-compressed Elective 2035
+SMTP-ENH SMTP Enhanced Error Codes Elective 2034
+RTP-H.261 RTP Payload Format for H.261 Elective 2032
+RTP-CELLB RTP Payload Format of Sun's CellB Elective 2029
+SPKM Simple Public-Key GSS-API Mechanism Elective 2025
+DLSW-MIB DLSw MIB using SMIv2 Elective 2024
+IPV6-PPP IP Version 6 over PPP Elective 2023
+MULTI-UNI Multicast over UNI 3.0/3.1 based ATM Elective 2022
+RMON-MIB RMON MIB using SMIv2 Elective 2021
+802.12-MIB IEEE 802.12 Interface MIB Elective 2020
+IPV6-FDDI Transmission of IPv6 Packets Over FDDI Elective 2019
+TCP-ACK TCP Selective Acknowledgement Options Elective 2018
+URL-ACC URL Access-Type Elective 2017
+MIME-PGP MIME Security with PGP Elective 2015
+MIB-UDP SNMPv2 MIB for UDP Elective 2013
+MIB-TCP SNMPv2 MIB for TCP Elective 2012
+MIB-IP SNMPv2 MIB for IP Elective 2011
+MOBILEIPMIBMobile IP MIB Definition using SMIv2 Elective 2006
+MOBILEIPAPPApplicability Statement for IP Mobility Elective 2005
+MINI-IP Minimal Encapsulation within IP Elective 2004
+IPENCAPIP IP Encapsulation within IP Elective 2003
+MOBILEIPSUPIP Mobility Support Elective 2002
+TCPSLOWSRT TCP Slow Start, Congestion Avoidance... Elective 2001
+BGP-COMM BGP Communities Attribute Elective 1997
+DNS-NOTIFY Mech. for Notification of Zone Changes Elective 1996
+DNS-IZT Incremental Zone Transfer in DNS Elective 1995
+SMTP-ETRN SMTP Service Extension ETRN Elective 1985
+SNA Serial Number Arithmetic Elective 1982
+MTU-IPV6 Path MTU Discovery for IP version 6 Elective 1981
+PPP-FRAME PPP in Frame Relay Elective 1973
+IPV6-ETHER Transmission IPv6 Packets Over Ethernet Elective 1972
+IPV6-AUTO IPv6 Stateless Address Autoconfiguation Elective 1971
+IPV6-ND Neighbor Discovery for IP Version 6 Elective 1970
+PPP-ECP PPP Encryption Control Protocol Elective 1968
+
+
+
+Internet Architecture Board Standards Track [Page 29]
+
+RFC 2400 Internet Standards September 1998
+
+
+GSSAPI-KER Kerberos Version 5 GSS-API Mechanism Elective 1964
+PPP-CCP PPP Compression Control Protocol Elective 1962
+GSSAPI-SOC GSS-API Auth for SOCKS Version 5 Elective 1961
+LDAP-STR String Rep. of LDAP Search Filters Elective 1960
+LDAP-URL LDAP URL Format Elective 1959
+TRANS-IPV6 Transition Mechanisms IPv6 Hosts/Routers Elective 1933
+AUTH-SOCKS Username Authentication for SOCKS V5 Elective 1929
+SOCKSV5 SOCKS Protocol Version 5 Elective 1928
+WHOIS++M How to Interact with a Whois++ Mesh Elective 1914
+WHOIS++A Architecture of Whois++ Index Service Elective 1913
+DSN Delivery Status Notifications Elective 1894
+EMS-CODE Enhanced Mail System Status Codes Elective 1893
+MIME-RPT Multipart/Report Elective 1892
+SMTP-DSN SMTP Delivery Status Notifications Elective 1891
+RTP-AV RTP Audio/Video Profile Elective 1890
+RTP Transport Protocol for Real-Time Apps Elective 1889
+DNS-IPV6 DNS Extensions to support IPv6 Elective 1886
+ICMPv6 ICMPv6 for IPv6 Elective 1885
+IPV6 IPv6 Specification Elective 1883
+HTML Hypertext Markup Language - 2.0 Elective 1866
+MIME-Sec MIME Object Security Services Elective 1848
+MIME-Encyp MIME: Signed and Encrypted Elective 1847
+WHOIS++ Architecture of the WHOIS++ service Elective 1835
+-------- Binding Protocols for ONC RPC Version 2 Elective 1833
+XDR External Data Representation Standard Elective 1832
+RPC Remote Procedure Call Protocol V. 2 Elective 1831
+-------- ESP DES-CBC Transform Ele/Req 1829
+-------- IP Authentication using Keyed MD5 Ele/Req 1828
+ESP IP Encapsulating Security Payload Ele/Req 1827
+IPV6-AH IP Authentication Header Ele/Req 1826
+-------- Security Architecture for IP Ele/Req 1825
+RREQ Requirements for IP Version 4 Routers Elective 1812
+URL Relative Uniform Resource Locators Elective 1808
+CLDAP Connection-less LDAP Elective 1798
+OSPF-DC Ext. OSPF to Support Demand Circuits Elective 1793
+OSI-Dir OSI User Friendly Naming ... Elective 1781
+MIME-EDI MIME Encapsulation of EDI Objects Elective 1767
+Lang-Tag Tags for Identification of Languages Elective 1766
+XNSCP PPP XNS IDP Control Protocol Elective 1764
+BVCP PPP Banyan Vines Control Protocol Elective 1763
+Print-MIB Printer MIB Elective 1759
+ATM-SIG ATM Signaling Support for IP over ATM Elective 1755
+IPNG Recommendation for IP Next Generation Elective 1752
+802.5-SSR 802.5 SSR MIB using SMIv2 Elective 1749
+SDLCSMIv2 SNADLC SDLC MIB using SMIv2 Elective 1747
+BGP4/IDRP BGP4/IDRP for IP/OSPF Interaction Elective 1745
+AT-MIB Appletalk MIB Elective 1742
+MacMIME MIME Encapsulation of Macintosh files Elective 1740
+
+
+
+Internet Architecture Board Standards Track [Page 30]
+
+RFC 2400 Internet Standards September 1998
+
+
+URL Uniform Resource Locators Elective 1738
+POP3-AUTH POP3 AUTHentication command Elective 1734
+IMAP4-AUTH IMAP4 Authentication Mechanisms Elective 1731
+RDBMS-MIB RDMS MIB - using SMIv2 Elective 1697
+MODEM-MIB Modem MIB - using SMIv2 Elective 1696
+ATM-MIB ATM Management Version 8.0 using SMIv2 Elective 1695
+TMUX Transport Multiplexing Protocol Elective 1692
+SNANAU-MIB SNA NAUs MIB using SMIv2 Elective 1666
+PPP-TRANS PPP Reliable Transmission Elective 1663
+-------- Postmaster Convention X.400 Operations Elective 1648
+PPP-BCP PPP Bridging Control Protocol Elective 1638
+UPS-MIB UPS Management Information Base Elective 1628
+PPP-SONET PPP over SONET/SDH Elective 1619
+PPP-ISDN PPP over ISDN Elective 1618
+DNS-R-MIB DNS Resolver MIB Extensions Elective 1612
+DNS-S-MIB DNS Server MIB Extensions Elective 1611
+FR-MIB Frame Relay Service MIB Elective 1604
+PPP-X25 PPP in X.25 Elective 1598
+OSPF-NSSA The OSPF NSSA Option Elective 1587
+OSPF-Multi Multicast Extensions to OSPF Elective 1584
+SONET-MIB MIB SONET/SDH Interface Type Elective 1595
+RIP-DC Extensions to RIP to Support Demand Cir. Elective 1582
+-------- Evolution of the Interfaces Group of MIB-II Elective 1573
+PPP-LCP PPP LCP Extensions Elective 1570
+X500-MIB X.500 Directory Monitoring MIB Elective 1567
+CIPX Compressing IPX Headers Over WAM Media Elective 1553
+IPXCP PPP Internetworking Packet Exchange Control Elective 1552
+SRB-MIB Source Routing Bridge MIB Elective 1525
+CIDR-STRA CIDR Address Assignment... Elective 1519
+CIDR-ARCH CIDR Architecture... Elective 1518
+CIDR-APP CIDR Applicability Statement Elective 1517
+-------- 802.3 MAU MIB Elective 1515
+HOST-MIB Host Resources MIB Elective 1514
+-------- Token Ring Extensions to RMON MIB Elective 1513
+FDDI-MIB FDDI Management Information Base Elective 1512
+KERBEROS Kerberos Network Authentication Ser (V5) Elective 1510
+GSSAPI Generic Security Service API: C-bindings Elective 1509
+DASS Distributed Authentication Security... Elective 1507
+-------- X.400 Use of Extended Character Sets Elective 1502
+HARPOON Rules for Downgrading Messages... Elective 1496
+Equiv X.400/MIME Body Equivalences Elective 1494
+IDPR Inter-Domain Policy Routing Protocol Elective 1479
+IDPR-ARCH Architecture for IDPR Elective 1478
+PPP/Bridge MIB Bridge PPP MIB Elective 1474
+PPP/IP MIB IP Network Control Protocol of PPP MIB Elective 1473
+PPP/SEC MIB Security Protocols of PPP MIB Elective 1472
+PPP/LCP MIB Link Control Protocol of PPP MIB Elective 1471
+X25-MIB Multiprotocol Interconnect on X.25 MIB Elective 1461
+
+
+
+Internet Architecture Board Standards Track [Page 31]
+
+RFC 2400 Internet Standards September 1998
+
+
+SNMPv2 Introduction to SNMPv2 Elective 1441
+PEM-KEY PEM - Key Certification Elective 1424
+PEM-ALG PEM - Algorithms, Modes, and Identifiers Elective 1423
+PEM-CKM PEM - Certificate-Based Key Management Elective 1422
+PEM-ENC PEM - Message Encryption and Auth Elective 1421
+SNMP-IPX SNMP over IPX Elective 1420
+SNMP-AT SNMP over AppleTalk Elective 1419
+SNMP-OSI SNMP over OSI Elective 1418
+FTP-FTAM FTP-FTAM Gateway Specification Elective 1415
+IDENT-MIB Identification MIB Elective 1414
+IDENT Identification Protocol Elective 1413
+DS3/E3-MIB DS3/E3 Interface Type Elective 1407
+DS1/E1-MIB DS1/E1 Interface Type Elective 1406
+BGP-OSPF BGP OSPF Interaction Elective 1403
+-------- Route Advertisement In BGP2 And BGP3 Elective 1397
+SNMP-X.25 SNMP MIB Extension for X.25 Packet Layer Elective 1382
+SNMP-LAPB SNMP MIB Extension for X.25 LAPB Elective 1381
+PPP-ATCP PPP AppleTalk Control Protocol Elective 1378
+PPP-OSINLCP PPP OSI Network Layer Control Protocol Elective 1377
+SNMP-PARTY-MIB Administration of SNMP Elective 1353
+SNMP-SEC SNMP Security Protocols Elective 1352
+SNMP-ADMIN SNMP Administrative Model Elective 1351
+TOS Type of Service in the Internet Elective 1349
+PPP-IPCP PPP Control Protocol Elective 1332
+------- X.400 1988 to 1984 downgrading Elective 1328
+TCP-EXT TCP Extensions for High Performance Elective 1323
+NETFAX File Format for the Exchange of Images Elective 1314
+FDDI-MIB FDDI-MIB Elective 1285
+------- Encoding Network Addresses Elective 1277
+------- Replication and Distributed Operations Elective 1276
+------- COSINE and Internet X.500 Schema Elective 1274
+BGP-MIB Border Gateway Protocol MIB (Version 3) Elective 1269
+ICMP-ROUT ICMP Router Discovery Messages Elective 1256
+OSI-UDP OSI TS on UDP Elective 1240
+STD-MIBs Reassignment of Exp MIBs to Std MIBs Elective 1239
+IPX-IP Tunneling IPX Traffic through IP Nets Elective 1234
+IS-IS OSI IS-IS for TCP/IP Dual Environments Elective 1195
+IP-CMPRS Compressing TCP/IP Headers Elective 1144
+NNTP Network News Transfer Protocol Elective 977
+
+[Note: an asterisk at the end of a line indicates a change from the
+previous edition of this document.]
+
+[Note: Ele/Req indicates elective for use with IPv4 and required for use
+with IPv6.]
+
+Applicability Statements:
+
+
+
+
+Internet Architecture Board Standards Track [Page 32]
+
+RFC 2400 Internet Standards September 1998
+
+
+6.6. Telnet Options
+
+For convenience, all the Telnet Options are collected here with both
+their state and status.
+
+Protocol Name Number State Status RFC STD
+======== ===================================== ===== ====== ==== ===
+TOPT-BIN Binary Transmission 0 Std Rec 856 27
+TOPT-ECHO Echo 1 Std Rec 857 28
+TOPT-RECN Reconnection 2 Prop Ele ...
+TOPT-SUPP Suppress Go Ahead 3 Std Rec 858 29
+TOPT-APRX Approx Message Size Negotiation 4 Prop Ele ...
+TOPT-STAT Status 5 Std Rec 859 30
+TOPT-TIM Timing Mark 6 Std Rec 860 31
+TOPT-REM Remote Controlled Trans and Echo 7 Prop Ele 726
+TOPT-OLW Output Line Width 8 Prop Ele ...
+TOPT-OPS Output Page Size 9 Prop Ele ...
+TOPT-OCRD Output Carriage-Return Disposition 10 Hist Ele 652 *
+TOPT-OHT Output Horizontal Tabstops 11 Hist Ele 653 *
+TOPT-OHTD Output Horizontal Tab Disposition 12 Hist Ele 654 *
+TOPT-OFD Output Formfeed Disposition 13 Hist Ele 655 *
+TOPT-OVT Output Vertical Tabstops 14 Hist Ele 656 *
+TOPT-OVTD Output Vertical Tab Disposition 15 Hist Ele 657 *
+TOPT-OLD Output Linefeed Disposition 16 Hist Ele 658 *
+TOPT-EXT Extended ASCII 17 Prop Ele 698
+TOPT-LOGO Logout 18 Prop Ele 727
+TOPT-BYTE Byte Macro 19 Prop Ele 735
+TOPT-DATA Data Entry Terminal 20 Prop Ele 1043
+TOPT-SUP SUPDUP 21 Prop Ele 736
+TOPT-SUPO SUPDUP Output 22 Prop Ele 749
+TOPT-SNDL Send Location 23 Prop Ele 779
+TOPT-TERM Terminal Type 24 Prop Ele 1091
+TOPT-EOR End of Record 25 Prop Ele 885
+TOPT-TACACS TACACS User Identification 26 Prop Ele 927
+TOPT-OM Output Marking 27 Prop Ele 933
+TOPT-TLN Terminal Location Number 28 Prop Ele 946
+TOPT-3270 Telnet 3270 Regime 29 Prop Ele 1041
+TOPT-X.3 X.3 PAD 30 Prop Ele 1053
+TOPT-NAWS Negotiate About Window Size 31 Prop Ele 1073
+TOPT-TS Terminal Speed 32 Prop Ele 1079
+TOPT-RFC Remote Flow Control 33 Prop Ele 1372
+TOPT-LINE Linemode 34 Draft Ele 1184
+TOPT-XDL X Display Location 35 Prop Ele 1096
+TOPT-ENVIR Telnet Environment Option 36 Hist Not 1408
+TOPT-AUTH Telnet Authentication Option 37 Exp Ele 1416
+TOPT-ENVIR Telnet Environment Option 39 Prop Ele 1572
+TOPT-TN3270E TN3270 Enhancements 40 Draft Ele 2355 *
+TOPT-AUTH Telnet XAUTH 41 Exp
+
+
+
+Internet Architecture Board Standards Track [Page 33]
+
+RFC 2400 Internet Standards September 1998
+
+
+TOPT-CHARSET Telnet CHARSET 42 Exp 2066
+TOPR-RSP Telnet Remote Serial Port 43 Exp
+TOPT-COMPORT Telnet Com Port Control 44 Exp 2217
+TOPT-SLE Telnet Suppress Local Echo 45 Exp *
+TOPT-STARTTLS Telnet Start TLS 46 Exp *
+TOPT-KERMIT Telnet KERMIT 47 Exp *
+TOPT-SEND-URL Send-URL 48 Exp *
+TOPT-EXTOP Extended-Options-List 255 Std Rec 861 32
+
+[Note: an asterisk at the end of a line indicates a change from the
+previous edition of this document.]
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 34]
+
+RFC 2400 Internet Standards September 1998
+
+
+6.7. Experimental Protocols
+
+All Experimental protocols have the Limited Use status.
+
+Protocol Name RFC
+======== ===================================== =====
+TCP-WIN Increasing TCP's Initial Window 2414*
+PIM-SM Protocol Independent Multicast-Sparse Mode 2362*
+------- Domain Names and Company Name Retrieva 2345
+RTP-MPEG RTP Payload Format for Bundled MPEG 2343
+------- Intra-LIS IP Multicast/Routers over ATM using PIM 2337
+------- Safe Response Header Field 2310
+LDAP-NIS Approach Using LDAP as a Network Information Service 2307
+HTTP-RVSA HTTP Remote Variant Selection Algorithm 2296
+TCN-HTTP Transparent Content Negotiation in HTTP 2295
+------- Core Based Trees (CBT) Multicast Routing Architecture 2201
+------- Core Based Trees (CBT version 2) Multicast Routing 2189
+------- Trivial Convention using HTTP in URN Resolution 2169
+------- Resolution of URIs using DNS 2168
+MAP-MAIL X.400 Mapping and Mail-11 2162
+MIME-ODA A MIME Body Part for ODA 2161
+OSPF-DIG OSPF with Digital Signature 2154
+GKMP-ARCH Group Key Management Protocol (GKMP) Architecture 2094
+GKMP-SPEC Group Key Management Protocol (GKMP) Specification 2093
+IP-SCSI Encapsulating IP with the SCSI 2143
+X.500-NAME Managing the X.500 Root Naming Context 2120
+TFTP-MULTI TFTP Multicast Option 2090
+IP-Echo IP Echo Host Service 2075
+METER-MIB Traffic Flow Measurement Meter MIB 2064
+TFM-ARCH Traffic Flow Measurement Architecture 2063
+DNS-SRV Location of Services in the DNS 2052
+URAS Uniform Resource Agents 2016
+GPS-AR GPS-Based Addressing and Routing 2009
+ETFTP Enhanced Trivial File Transfer Protocol 1986
+BGP-RR BGP Route Reflection 1966
+BGP-ASC Autonomous System Confederations for BGP 1965
+SMKD Scalable Multicast Key Distribution 1949
+HTML-TBL HTML Tables 1942
+SNMPV2SM User-based Security Model for SNMPv2 1910
+SNMPV2AI SNMPv2 Administrative Infrastructure 1909
+SNMPV2CB Introduction to Community-based SNMPv2 1901
+------- IPv6 Testing Address Allocation 1897
+DNS-LOC Location Information in the DNS 1876
+SGML-MT SGML Media Types 1874
+CONT-MT Access Type Content-ID 1873
+UNARP ARP Extension - UNARP 1868
+------- Form-based File Upload in HTML 1867
+------- BGP/IDRP Route Server Alternative 1863
+
+
+
+Internet Architecture Board Standards Track [Page 35]
+
+RFC 2400 Internet Standards September 1998
+
+
+------- IP Authentication using Keyed SHA 1852
+ESP3DES ESP Triple DES Transform 1851
+------- SMTP 521 Reply Code 1846
+------- SMTP Serv. Ext. for Checkpoint/Restart 1845
+------- SMTP Serv. Ext. Large and Binary MIME Msgs. 1830
+ST2 Stream Protocol Version 2 1819
+------- Content-Disposition Header 1806
+------- Schema Publishing in X.500 Directory 1804
+------- X.400-MHS use X.500 to support X.400-MHS Routing 1801
+------- Class A Subnet Experiment 1797
+TCP/IPXMIB TCP/IPX Connection Mib Specification 1792
+------- TCP And UDP Over IPX Networks With Fixed Path MTU 1791
+ICMP-DM ICMP Domain Name Messages 1788
+CLNP-MULT Host Group Extensions for CLNP Multicasting 1768
+OSPF-OVFL OSPF Database Overflow 1765
+RWP Remote Write ProtocolL - Version 1.0 1756
+NARP NBMA Address Resolution Protocol 1735
+DNS-ENCODE DNS Encoding of Geographical Location 1712
+TCP-POS An Extension to TCP: Partial Order Service 1693
+T/TCP TCP Extensions for Transactions 1644
+MIME-UNI Using Unicode with MIME 1641
+FOOBAR FTP Operation Over Big Address Records 1639
+X500-CHART Charting Networks in the X.500 Directory 1609
+X500-DIR Representing IP Information in the X.500 Directory 1608
+SNMP-DPI SNMP Distributed Protocol Interface 1592
+CLNP-TUBA Use of ISO CLNP in TUBA Environments 1561
+REM-PRINT TPC.INT Subdomain Remote Printing - Technical 1528
+EHF-MAIL Encoding Header Field for Internet Messages 1505
+RAP Internet Route Access Protocol 1476
+TP/IX TP/IX: The Next Internet 1475
+X400 Routing Coordination for X.400 Services 1465
+DNS Storing Arbitrary Attributes in DNS 1464
+IRCP Internet Relay Chat Protocol 1459
+TOS-LS Link Security TOS 1455
+SIFT/UFT Sender-Initiated/Unsolicited File Transfer 1440
+DIR-ARP Directed ARP 1433
+TEL-SPX Telnet Authentication: SPX 1412
+TEL-KER Telnet Authentication: Kerberos V4 1411
+TRACE-IP Traceroute Using an IP Option 1393
+DNS-IP Experiment in DNS Based IP Routing 1383
+RMCP Remote Mail Checking Protocol 1339
+TCP-HIPER TCP Extensions for High Performance 1323
+MSP2 Message Send Protocol 2 1312
+DSLCP Dynamically Switched Link Control 1307
+-------- X.500 and Domains 1279
+IN-ENCAP Internet Encapsulation Protocol 1241
+CLNS-MIB CLNS-MIB 1238
+CFDP Coherent File Distribution Protocol 1235
+
+
+
+Internet Architecture Board Standards Track [Page 36]
+
+RFC 2400 Internet Standards September 1998
+
+
+IP-AX.25 IP Encapsulation of AX.25 Frames 1226
+ALERTS Managing Asynchronously Generated Alerts 1224
+MPP Message Posting Protocol 1204
+SNMP-BULK Bulk Table Retrieval with the SNMP 1187
+DNS-RR New DNS RR Definitions 1183
+IMAP2 Interactive Mail Access Protocol 1176
+NTP-OSI NTP over OSI Remote Operations 1165
+DMF-MAIL Digest Message Format for Mail 1153
+RDP Reliable Data Protocol 908,1151
+TCP-ACO TCP Alternate Checksum Option 1146
+IP-DVMRP IP Distance Vector Multicast Routing 1075
+VMTP Versatile Message Transaction Protocol 1045
+COOKIE-JAR Authentication Scheme 1004
+NETBLT Bulk Data Transfer Protocol 998
+IRTP Internet Reliable Transaction Protocol 938
+LDP Loader Debugger Protocol 909
+RLP Resource Location Protocol 887
+NVP-II Network Voice Protocol ISI-memo
+PVP Packet Video Protocol ISI-memo
+
+[Note: an asterisk at the end of a line indicates a change from the
+previous edition of this document.]
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 37]
+
+RFC 2400 Internet Standards September 1998
+
+
+6.8. Informational Protocols
+
+Information protocols have no status.
+
+Protocol Name RFC
+======= ==================================== =====
+-------- ST2+ over ATM Protocol Spec - UNI 3.1 Version 2383*
+-------- Mapping Airline Reservation, Ticketing, Messaging 2351
+KOI8-U Ukrainian Character Set KOI8-U 2319
+TEXT-CSS The text/css Media Type 2318
+PKCS-7 PKCS #7: Cryptographic Message Syntax Version 1.5 2315
+PKCS-10 PKCS #10: Certification Request Syntax Version 1.5 2314
+PKCS-1 PKCS #1: RSA Encryption Version 1.5 2313
+SMIME-CERT S/MIME Version 2 Certificate Handling 2312
+SMIME-MSG S/MIME Version 2 Message Specification 2311
+TIFF Tag Image File Format F Profile for Facsimile 2302
+GSMP Ipsilon's General Switch Management Protocol 2297
+HSRP Cisco Hot Standby Router Protocol (HSRP) 2281
+RC2-ENCRP A Description of the RC2(r) Encryption Algorithm 2268
+SNQP Simple Nomenclator Query Protocol 2259
+-------- Japanese Character Encoding for Internet Messages 2237
+KEYX-DNS Key Exchange Delegation Record for the DNS 2230
+DSP A Dictionary Server Protocol 2229
+NFS-URL NFS URL Scheme 2224
+APP-MARC The Application/MARC Content-type 2220
+ODETTE-FTP ODETTE File Transfer Protocol 2204
+ESRO AT&T/Neda's Efficient Short Remote Operations Protocol 2188
+ICP Internet Cache Protocol Version 2 2186
+IPV4-MAPOS IPv4 over MAPOS Version 1 2176
+MAPOS-SONET Multiple Access Protocol over SONET/SDH Version 1 2171
+RWHOIS Referral Whois Protocol 2167
+PPP-EXT PPP Vendor Extensions 2153
+UTF-7 UTF-7 2152
+CAST-128 CAST-128 Encryption Algorithm 2144
+RADIUS-ACC RADIUS Accounting 2139
+DLSCAP Data Link Switching Client Access Protocol 2114
+PNG Portable Network Graphics Version 1.0 2083
+RC5 RC5, RC5-CBC, RC5-CBC-Pad, and RC5-CTS Algorithms 2040
+SNTP Simple Network Time Protocol v4 for IPv4, IPv6 and OSI 2030
+PGP-MEF PGP Message Exchange Formats 1991
+PPP-DEFL PPP Deflate Protocol 1979
+PPP-PRED PPP Predictor Compression Protocol 1978
+PPP-BSD PPP BSD Compression Protocol 1977
+PPP-DCE PPP for Data Compression in DCE 1976
+PPP-MAG PPP Magnalink Variable Resource Compression 1975
+PPP-STAC PPP Stac LZS Compression Protocol 1974
+GZIP GZIP File Format Specification Version 4.3 1952
+DEFLATE DEFLATE Compressed Data Format Specification V. 1.3 1951
+
+
+
+Internet Architecture Board Standards Track [Page 38]
+
+RFC 2400 Internet Standards September 1998
+
+
+ZLIB ZLIB Compressed Data Format Specification V. 3.3 1950
+HTTP-1.0 Hypertext Transfer Protocol -- HTTP/1.0 1945
+-------- text/enriched MIME Content-type 1896
+-------- Application/CALS-1840 Content-type 1895
+-------- PPP IPCP Extensions for Name Server Addresses 1877
+SNPP Simple Network Paging Protocol - Version 2 1861
+-------- ISO Transport Class 2 Non-use Explicit Flow Control 1859
+ over TCP RFC1006 extension
+-------- IP in IP Tunneling 1853
+-------- PPP Network Control Protocol for LAN Extension 1841
+TESS The Exponential Security System 1824
+NFSV3 NFS Version 3 Protocol Specification 1813
+-------- A Format for Bibliographic Records 1807
+------- Data Link Switching: Switch-to-Switch Protocol 1795
+BGP-4 Experience with the BGP-4 Protocol 1773
+SDMD IPv4 Option for Sender Directed MD Delivery 1770
+SNOOP Snoop Version 2 Packet Capture File Format 1761
+BINHEX MIME Content Type for BinHex Encoded Files 1741
+DNS-NSAP DNS NSAP Resource Records 1706
+RADIO-PAGE TPC.INT Subdomain: Radio Paging -- Technical Procedures 1703
+GRE-IPv4 Generic Routing Encapsulation over IPv4 1702
+GRE Generic Routing Encapsulatio 1701
+ADSNA-IP Advanced SNA/IP: A Simple SNA Transport Protocol 1538
+TACACS Terminal Access Control Protocol 1492
+MD4 MD4 Message Digest Algorithm 1320
+SUN-NFS Network File System Protocol 1094
+SUN-RPC Remote Procedure Call Protocol Version 2 1057
+GOPHER The Internet Gopher Protocol 1436
+LISTSERV Listserv Distribute Protocol 1429
+------- Replication Requirements 1275
+PCMAIL Pcmail Transport Protocol 1056
+MTP Multicast Transport Protocol 1301
+BSD Login BSD Login 1282
+DIXIE DIXIE Protocol Specification 1249
+IP-X.121 IP to X.121 Address Mapping for DDN 1236
+OSI-HYPER OSI and LLC1 on HYPERchannel 1223
+HAP2 Host Access Protocol 1221
+SUBNETASGN On the Assignment of Subnet Numbers 1219
+SNMP-TRAPS Defining Traps for use with SNMP 1215
+DAS Directory Assistance Service 1202
+LPDP Line Printer Daemon Protocol 1179
+
+[Note: an asterisk at the end of a line indicates a change from the
+previous edition of this document.]
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 39]
+
+RFC 2400 Internet Standards September 1998
+
+
+6.9. Historic Protocols
+
+All Historic protocols have Not Recommended status.
+
+Protocol Name RFC STD
+======== ===================================== ===== ===
+IPV6-UNI IPv6 Provider-Based Unicast Address Elective 2073 *
+IPV6-Addr IPv6 Addressing Architecture Elective 1884 *
+L2F Cisco Layer Two Forwarding Protocol 2341
+IPSO DoD Security Options for IP Elective 1108
+SNMPv2 Manager-to-Manager MIB Elective 1451
+SNMPv2 Party MIB for SNMPv2 Elective 1447
+SNMPv2 Security Protocols for SNMPv2 Elective 1446
+SNMPv2 Administrative Model for SNMPv2 Elective 1445
+RIP Routing Information Protocol Ele 1058 34
+-------- Mapping full 822 to Restricted 822 1137
+BGP3 Border Gateway Protocol 3 (BGP-3) 1267,1268
+-------- Gateway Requirements Req 1009 4
+EGP Exterior Gateway Protocol Rec 904 18
+SNMP-MUX SNMP MUX Protocol and MIB 1227
+OIM-MIB-II OSI Internet Management: MIB-II 1214
+IMAP3 Interactive Mail Access Protocol Version 3 1203
+SUN-RPC Remote Procedure Call Protocol Version 1 1050
+802.4-MIP IEEE 802.4 Token Bus MIB 1230
+CMOT Common Management Information Services 1189
+-------- Mail Privacy: Procedures 1113
+-------- Mail Privacy: Key Management 1114
+-------- Mail Privacy: Algorithms 1115
+NFILE A File Access Protocol 1037
+HOSTNAME HOSTNAME Protocol 953
+SFTP Simple File Transfer Protocol 913
+SUPDUP SUPDUP Protocol 734
+BGP Border Gateway Protocol 1163,1164
+MIB-I MIB-I 1156
+SGMP Simple Gateway Monitoring Protocol 1028
+HEMS High Level Entity Management Protocol 1021
+STATSRV Statistics Server 996
+POP2 Post Office Protocol, Version 2 937
+RATP Reliable Asynchronous Transfer Protocol 916
+HFEP Host - Front End Protocol 929
+THINWIRE Thinwire Protocol 914
+HMP Host Monitoring Protocol 869
+GGP Gateway Gateway Protocol 823
+RTELNET Remote Telnet Service 818
+CLOCK DCNET Time Server Protocol 778
+MPM Internet Message Protocol 759
+NETRJS Remote Job Service 740
+NETED Network Standard Text Editor 569
+
+
+
+Internet Architecture Board Standards Track [Page 40]
+
+RFC 2400 Internet Standards September 1998
+
+
+RJE Remote Job Entry 407
+XNET Cross Net Debugger IEN-158
+NAMESERVER Host Name Server Protocol IEN-116
+MUX Multiplexing Protocol IEN-90
+GRAPHICS Graphics Protocol NIC-24308
+
+[Note: an asterisk at the end of a line indicates a change from the
+previous edition of this document.]
+
+6.10. Obsolete Protocols
+
+ Some of the protocols listed in this memo are described in RFCs that
+ are obsoleted by newer RFCs. "Obsolete" or "obsoleted" is not an
+ official state or status of protocols. This subsection is for
+ information only.
+
+ While it may seem to be obviously wrong to have an obsoleted RFC in
+ the list of standards, there may be cases when an older standard is
+ in the process of being replaced. This process may take a year or
+ two.
+
+ Many obsoleted protocols are of little interest and are dropped from
+ this memo altogether. Some obsoleted protocols have received enough
+ recognition that it seems appropriate to list them under their
+ current status and with the following reference to their current
+ replacement.
+
+ RFC RFC Status Title *
+ ==== ==== ========= =================================== =
+ 1305 obsoletes 1119 Stan/Rec Network Time Protocol version 2
+
+ Thanks to Lynn Wheeler for compiling the information in this
+ subsection.
+
+ [Note: an asterisk at the end of a line indicates a change from the
+ previous edition of this document.]
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 41]
+
+RFC 2400 Internet Standards September 1998
+
+
+7. Contacts
+
+7.1. IAB, IETF, and IRTF Contacts
+
+ 7.1.1. Internet Architecture Board (IAB) Contact
+
+ Please send your comments about this list of protocols and especially
+ about the Draft Standard Protocols to the Internet Architecture Board
+ care of Abel Winerib, IAB Executive Director.
+
+ Contacts:
+
+ Abel Winerib
+ Executive Director of the IAB
+ Intel, JF2-64
+ 2111 NE 25th Avenue
+ Hillsboro, OR 97124
+
+ 1-503-696-8972
+
+ AWinerib@ibeam.jf.intel.com
+
+
+ Brian E. Carpenter
+ Chair of the IAB
+ IBM United Kingdon Laboratories
+ Hursley Park
+ Winchester
+ Hampshire SO21 2JN
+
+ +44 1962 816833
+
+ brian@hursley.ibm.com
+
+
+ 7.1.2. Internet Engineering Task Force (IETF) Contact
+
+ Contacts:
+
+ Fred Baker
+ Chair of the IETF
+ cisco Systems, Inc.
+ 519 Lado Drive
+ Santa Barbara, CA 93111
+
+ 1-805-681-0115
+
+ fred@cisco.com
+
+
+
+Internet Architecture Board Standards Track [Page 42]
+
+RFC 2400 Internet Standards September 1998
+
+
+ Steve Coya
+ IESG Secretary
+ Corporation for National Research Initiatives
+ 1895 Preston White Drive, Suite 100
+ Reston, VA 22091
+
+ 1-703-620-8990
+
+ scoya@IETF.ORG
+
+ Steve Coya
+ Executive Director of the IETF
+ Corporation for National Research Initiatives
+ 1895 Preston White Drive, Suite 100
+ Reston, VA 22091
+
+ 1-703-620-8990
+
+ scoya@IETF.ORG
+
+
+ 7.1.3. Internet Research Task Force (IRTF) Contact
+
+ Contact:
+
+ Abel Winerib
+ Chair of the IRTF
+ Intel, JF2-64
+ 2111 NE 25th Avenue
+ Hillsboro, OR 97124
+
+ 1-503-696-8972
+
+ AWinerib@ibeam.jf.intel.com
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 43]
+
+RFC 2400 Internet Standards September 1998
+
+
+7.2. Internet Assigned Numbers Authority Contact
+
+ Contact:
+
+ Joyce K. Reynolds
+ Internet Assigned Numbers Authority
+ USC/Information Sciences Institute
+ 4676 Admiralty Way
+ Marina del Rey, CA 90292-6695
+
+ 1-310-822-1511
+
+ IANA@IANA.ORG
+
+ The protocol standards are managed by the Internet Assigned Numbers
+ Authority.
+
+ Please refer to the document "Assigned Numbers" (RFC-1700) for
+ further information about the status of protocol documents. There
+ are two documents that summarize the requirements for host and
+ gateways in the Internet, "Host Requirements" (RFC-1122 and RFC-1123)
+ and "Requirements for IP Version 4 Routers" (RFC-1812).
+
+ How to obtain the most recent edition of this "Internet Official
+ Protocol Standards" memo:
+
+ The file "in-notes/std/std1.txt" may be copied via FTP from the
+ FTP.ISI.EDU computer using the FTP username "anonymous" and FTP
+ password "guest".
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 44]
+
+RFC 2400 Internet Standards September 1998
+
+
+7.3. Request for Comments Editor Contact
+
+ Contact:
+
+ Jon Postel
+ RFC Editor
+ USC/Information Sciences Institute
+ 4676 Admiralty Way
+ Marina del Rey, CA 90292-6695
+
+ 1-310-822-1511
+
+ RFC-Editor@ISI.EDU
+
+ Documents may be submitted via electronic mail to the RFC Editor for
+ consideration for publication as RFC. If you are not familiar with
+ the format or style requirements please request the "Instructions for
+ RFC Authors". In general, the style of any recent RFC may be used as
+ a guide.
+
+7.4. The Network Information Center and
+ Requests for Comments Distribution Contact
+
+ RFCs can be obtained via FTP from FTP.ISI.EDU, with the pathname in-
+ notes/rfcnnnn.txt (where "nnnn" refers to the number of the RFC).
+ Login with FTP username "anonymous" and password "name@host.domain".
+
+ RFCs can also be obtained via electronic mail from ISI.EDU by using
+ the RFC-INFO service. Address the request to "rfc-info@isi.edu" with
+ a message body of:
+
+ Retrieve: RFC
+ Doc-ID: RFCnnnn
+
+ (Where "nnnn" refers to the number of the RFC (always use 4 digits -
+ the DOC-ID of RFC 822 is "RFC0822")). The RFC-INFO@ISI.EDU server
+ provides other ways of selecting RFCs based on keywords and such; for
+ more information send a message to "rfc-info@isi.edu" with the
+ message body "help: help".
+
+ contact: RFC-Manager@ISI.EDU
+
+
+
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 45]
+
+RFC 2400 Internet Standards September 1998
+
+
+7.5. Sources for Requests for Comments
+
+ Details on many sources of RFCs via FTP or EMAIL may be obtained by
+ sending an EMAIL message to "rfc-info@ISI.EDU" with the message body
+ "help: ways_to_get_rfcs". For example:
+
+ To: rfc-info@ISI.EDU
+ Subject: getting rfcs
+
+ help: ways_to_get_rfcs
+
+8. Security Considerations
+
+ Security issues are not addressed in this memo.
+
+9. Authors' Addresses
+
+ Jon Postel
+ USC/Information Sciences Institute
+ 4676 Admiralty Way
+ Marina del Rey, CA 90292
+
+ Phone: 310-822-1511
+ Fax: 310-823-6714
+
+ EMail: Postel@ISI.EDU
+
+
+ Joyce K. Reynolds
+ USC/Information Sciences Institute
+ 4676 Admiralty Way
+ Marina del Rey, CA 90292
+
+ Phone: 310-822-1511
+ Fax: 310-823-6714
+
+ EMail: JKRey@ISI.EDU
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 46]
+
+RFC 2400 Internet Standards September 1998
+
+
+Full Copyright Statement
+
+ Copyright (C) The Internet Society (1998). All Rights Reserved.
+
+ This document and translations of it may be copied and furnished to
+ others, and derivative works that comment on or otherwise explain it
+ or assist in its implementation may be prepared, copied, published
+ and distributed, in whole or in part, without restriction of any
+ kind, provided that the above copyright notice and this paragraph are
+ included on all such copies and derivative works. However, this
+ document itself may not be modified in any way, such as by removing
+ the copyright notice or references to the Internet Society or other
+ Internet organizations, except as needed for the purpose of
+ developing Internet standards in which case the procedures for
+ copyrights defined in the Internet Standards process must be
+ followed, or as required to translate it into languages other than
+ English.
+
+ The limited permissions granted above are perpetual and will not be
+ revoked by the Internet Society or its successors or assigns.
+
+ This document and the information contained herein is provided on an
+ "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
+ TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
+ BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
+ HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
+ MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Internet Architecture Board Standards Track [Page 47]
+