As per Relevance of the word document, we have this rfc below:











Network Working Group Internet Architecture
Request for Comments: 1540 J. Postel,
Obsoletes: RFCs 1500, 1410, 1360, October 1993
1280, 1250, 1100, 1083, 1130, 1140, 1200
STD: 1
Category: Standards


INTERNET OFFICIAL PROTOCOL


Status of this

This memo describes the state of standardization of protocols used
the Internet as determined by the Internet Architecture Board (IAB).
Distribution of this memo is unlimited

Table of

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1. The Standardization Process . . . . . . . . . . . . . . . . 2
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 . . . . . . . . . . . . . . . 9
4.1.4. Experimental Protocol . . . . . . . . . . . . . . . . . 9
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 . . . . . . . . . . . . . . . . . . 10
4.2.4. Limited Use Protocol . . . . . . . . . . . . . . . . . 10
4.2.5. Not Recommended Protocol . . . . . . . . . . . . . . . 10
5. The Standards Track . . . . . . . . . . . . . . . . . . . 10
5.1. The RFC Processing Decision Table . . . . . . . . . . . 10
5.2. The Standards Track Diagram . . . . . . . . . . . . . . 12
6. The Protocols . . . . . . . . . . . . . . . . . . . . . . 14
6.1. Recent Changes . . . . . . . . . . . . . . . . . . . . . 14
6.1.1. New RFCs . . . . . . . . . . . . . . . . . . . . . . . 14
6.1.2. Other Changes . . . . . . . . . . . . . . . . . . . . 18



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6.2. Standard Protocols . . . . . . . . . . . . . . . . . . . 19
6.3. Network-Specific Standard Protocols . . . . . . . . . . 21
6.4. Draft Standard Protocols . . . . . . . . . . . . . . . . 22
6.5. Proposed Standard Protocols . . . . . . . . . . . . . . 23
6.6. Telnet Options . . . . . . . . . . . . . . . . . . . . . 26
6.7. Experimental Protocols . . . . . . . . . . . . . . . . . 27
6.8. Informational Protocols . . . . . . . . . . . . . . . . 28
6.9. Historic Protocols . . . . . . . . . . . . . . . . . . . 29
7. Contacts . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.1. IAB, IETF, and IRTF Contacts . . . . . . . . . . . . . . 30
7.1.1. Internet Architecture Board (IAB) Contact . . . . . . 30
7.1.2. Internet Engineering Task Force (IETF) Contact . . . . 30
7.1.3. Internet Research Task Force (IRTF) Contact . . . . . 31
7.2. Internet Assigned Numbers Authority (IANA) Contact . . . 32
7.3. Request for Comments Editor Contact . . . . . . . . . . 33
7.4. Network Information Center Contact . . . . . . . . . . . 33
7.5. Sources for Requests for Comments . . . . . . . . . . . 34
8. Security Considerations . . . . . . . . . . . . . . . . . 34
9. Author's Address . . . . . . . . . . . . . . . . . . . . . 34



A discussion of the standardization process and the RFC
series is presented first, followed by an explanation of the terms
Sections 6.2 - 6.9 contain the lists of protocols in each stage
standardization. Finally are pointers to references and contacts
further information

This memo is intended to be issued approximately quarterly; please
sure the copy you are reading is current. Current copies may
obtained from the Network Information Center (INTERNIC) or from
Internet Assigned Numbers Authority (IANA) (see the
information at the end of this memo). Do not use this edition
28-February-94.

See Section 6.1 for a description of recent changes. In the
lists in sections 6.2 - 6.9, an asterisk (*) next to a
denotes that it is new to this document or has been moved from
protocol level to another, or differs from the previous edition
this document

1. The Standardization

The Internet Architecture Board maintains this list of documents
define standards for the Internet protocol suite. See RFC-1358
the charter of the IAB and RFC-1160 for an explanation of the
and organization of the IAB and its subsidiary groups, the
Engineering Task Force (IETF) and the Internet Research Task



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(IRTF). Each of these groups has a steering group called the
and IRSG, respectively. The IETF develops these standards with
goal of co-ordinating the evolution of the Internet protocols;
co-ordination has become quite important as the Internet
are increasingly in general commercial use. The
description of the Internet standards process is found in RFC-1310.

The majority of Internet protocol development and
activity takes place in the working groups of the IETF

Protocols which are to become standards in the Internet go through
series of states or maturity levels (proposed standard,
standard, and standard) involving increasing amounts of scrutiny
testing. When a protocol completes this process it is assigned a
number (see RFC-1311). At each step, the Internet
Steering Group (IESG) of the IETF must make a recommendation
advancement of the protocol

To allow time for the Internet community to consider and react
standardization proposals, a minimum delay of 6 months before
proposed standard can be advanced to a draft standard and 4
before a draft standard can be promoted to standard

It is general practice that no proposed standard can be promoted
draft standard without at least two independent implementations (
the recommendation of the IESG). Promotion from draft standard
standard generally requires operational experience and
interoperability of two or more implementations (and
recommendation of the IESG).

In cases where there is uncertainty as to the proper
concerning a protocol a special review committee may be
consisting of experts from the IETF, IRTF and the IAB with
purpose of recommending an explicit action

Advancement of a protocol to proposed standard is an important
since it marks a protocol as a candidate for eventual
(it puts the protocol "on the standards track"). Advancement
draft standard is a major step which warns the community that,
major objections are raised or flaws are discovered, the protocol
likely to be advanced to standard in six months

Some protocols have been superseded by better ones or are
unused. Such protocols are still documented in this memorandum
the designation "historic".

Because it is useful to document the results of early
research and development work, some of the RFCs document



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which are still in an experimental condition. The protocols
designated "experimental" in this memorandum. They appear in
report as a convenience to the community and not as evidence of
standardization

Other protocols, such as those developed by other
organizations, or by particular vendors, may be of interest or may
recommended for use in the Internet. The specifications of
protocols may be published as RFCs for the convenience of
Internet community. These protocols are labeled "informational"
this memorandum

In addition to the working groups of the IETF, protocol
and experimentation may take place as a result of the work of
research groups of the Internet Research Task Force, or the work
other individuals interested in Internet protocol development.
the documentation of such experimental work in the RFC series
encouraged, but none of this work is considered to be on the
for standardization until the IESG has made a recommendation
advance the protocol to the proposed standard state

A few protocols have achieved widespread implementation without
approval of the IESG. For example, some vendor protocols have
very important to the Internet community even though they have
been recommended by the IESG. However, the IAB strongly
that the standards process be used in the evolution of the
suite to maximize interoperability (and to prevent
protocol requirements from arising). The use of the
"standard", "draft standard", and "proposed standard" are reserved
any RFC or other publication of Internet protocols to only
protocols which the IESG has approved

In addition to a state (like "Proposed Standard"), a protocol is
assigned a status, or requirement level, in this document.
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
standard, draft standard, or standard state (see Section 5),
status shown in Section 6 is the current status

Few protocols are required to be implemented in all systems; this
because there is such a variety of possible systems, for example
gateways, routers, terminal servers, workstations, and multi-
hosts. The requirement level shown in this document is only a
word label, which may not be sufficient to characterize
implementation requirements for a protocol in all situations.
some protocols, this document contains an additional status
(an applicability statement). In addition, more detailed



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information may be contained in separate requirements documents (
Section 3).

2. The Request for Comments

The documents called Request for Comments (or RFCs) are the
notes of the "Network Working Group", that is the Internet
and development community. A document in this series may be
essentially any topic related to computer communication, and may
anything from a meeting report to the specification of a standard

Notice

All standards are published as RFCs, but not all RFCs
standards

Anyone can submit a document for publication as an RFC.
must be made via electronic mail to the RFC Editor (see the
information at the end of this memo, and see RFC 1111).

While RFCs are not refereed publications, they do receive
review from the task forces, individual technical experts, or the
Editor, as appropriate

The RFC series comprises a wide range of documents, ranging
informational documents of general interests to specifications
standard Internet protocols. In cases where submission is
to document a proposed standard, draft standard, or
protocol, the RFC Editor will publish the document only with
approval of the IESG. For documents describing experimental work
the RFC Editor will notify the IESG before publication, allowing
the possibility of review by the relevant IETF working group or
research group and provide those comments to the author. See
5.1 for more detail

Once a document is assigned an RFC number and published, that RFC
never revised or re-issued with the same number. There is never
question of having the most recent version of a particular RFC
However, a protocol (such as File Transfer Protocol (FTP)) may
improved and re-documented many times in several different RFCs.
is important to verify that you have the most recent RFC on
particular protocol. This "Internet Official Protocol Standards
memo is the reference for determining the correct RFC for the
specification of each protocol

The RFCs are available from the INTERNIC, and a number of
sites. For more information about obtaining RFCs, see Sections 7.4
and 7.5.



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3. Other Reference

There are three other reference documents of interest in checking
current status of protocol specifications and standardization.
are the Assigned Numbers, the Gateway Requirements, and the
Requirements. Note that these documents are revised and updated
different times; in case of differences between these documents,
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

The "Assigned Numbers" document lists the assigned values of
parameters used in the various protocols. For example, IP
codes, TCP port numbers, Telnet Option Codes, ARP hardware types,
Terminal Type names. Assigned Numbers was most recently issued
RFC-1340.

3.2. Gateway

This document reviews the specifications that apply to gateways
supplies guidance and clarification for any ambiguities.
Requirements is RFC-1009. A working group of the IETF is
preparing a revision

3.3. Host

This pair of documents reviews and updates the specifications
apply to hosts, and it supplies guidance and clarification for
ambiguities. Host Requirements was issued as RFC-1122 and RFC-1123.

3.4. The MIL-STD

The Internet community specifications for IP (RFC-791) and TCP (RFC
793) and the DoD MIL-STD specifications are intended to
exactly the same protocols. Any difference in the
specified by these sets of documents should be reported to DISA
to the IESG. The RFCs and the MIL-STDs for IP and TCP differ
style and level of detail. It is strongly advised that the two
of documents be used together, along with RFC-1122 and RFC-1123.

The Internet and the DoD MIL-STD specifications for the FTP, SMTP
and Telnet protocols are essentially the same documents (RFCs 765,
821, 854). The MIL-STD versions have been edited slightly.
that the current Internet specification for FTP is RFC-959 (
modified by RFC-1123).



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Note that these MIL-STD are now somewhat out of date. The
Requirements (RFC-1009) and Host Requirements (RFC-1122, RFC-1123)
take precedence over both earlier RFCs and the MIL-STDs

Internet Protocol (IP) MIL-STD-1777
Transmission Control Protocol (TCP) MIL-STD-1778
File Transfer Protocol (FTP) MIL-STD-1780
Simple Mail Transfer Protocol (SMTP) MIL-STD-1781
Telnet Protocol and Options (TELNET) MIL-STD-1782

These documents are available from the Naval Publications and
Center. Requests can be initiated by telephone, telegraph, or mail
however, it is preferred that private industry use form DD1425,
possible

Naval Publications and Forms Center, Code 3015
5801 Tabor
Philadelphia, PA 19120
Phone: 1-215-697-3321 (order tape
1-215-697-4834 (conversation

4. Explanation of

There are two independent categorization of protocols. The first
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
label. These status labels should be considered only as
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
proportions (indicated by the relative number of Xs). A new
is most likely to start in the (proposed standard, elective) cell,
the (experimental, not recommended) cell








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S T A T U
Req Rec Ele Lim
+-----+-----+-----+-----+-----+
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
protocols are used in both. The definitions of the terms
will refer to a "system" which is either a host or a gateway (
both). It should be clear from the context of the
protocol which types of systems are intended

4.1. Definitions of Protocol

Every protocol listed in this document is assigned to a "
level" or STATE of standardization: "standard", "draft standard",
"proposed standard", "experimental", or "historic".

4.1.1. Standard

The IESG has established this as an official standard protocol
the Internet. These protocols are assigned STD numbers (see RFC
1311). These are separated into two groups: (1) IP protocol
above, protocols that apply to the whole Internet; and (2)
network-specific protocols, generally specifications of how to
IP on particular types of networks

4.1.2. Draft Standard

The IESG is actively considering this protocol as a
Standard Protocol. Substantial and widespread testing and
are desired. Comments and test results should be submitted to
IESG. There is a possibility that changes will be made in a
Standard Protocol before it becomes a Standard Protocol





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4.1.3. Proposed Standard

These are protocol proposals that may be considered by the
for standardization in the future. Implementation and testing
several groups is desirable. Revision of the
specification is likely

4.1.4. Experimental

A system should not implement an experimental protocol unless
is participating in the experiment and has coordinated its use
the protocol with the developer of the protocol

Typically, experimental protocols are those that are developed
part of an ongoing research project not related to an
service offering. While they may be proposed as a
protocol at a later stage, and thus become proposed standard
draft standard, and then standard protocols, the designation of
protocol as experimental may sometimes be meant to suggest
the protocol, although perhaps mature, is not intended
operational use

4.1.5. Informational

Protocols developed by other standard organizations, or vendors
or that are for other reasons outside the purview of the IESG,
be published as RFCs for the convenience of the Internet
as informational protocols

4.1.6. Historic

These are protocols that are unlikely to ever become standards
the Internet either because they have been superseded by
developments or due to lack of interest

4.2. Definitions of Protocol

This document lists a "requirement level" or STATUS for
protocol. The status is one of "required", "recommended",
"elective", "limited use", or "not recommended".

4.2.1. Required

A system must implement the required protocols

4.2.2. Recommended

A system should implement the recommended protocols



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4.2.3. Elective

A system may or may not implement an elective protocol.
general notion is that if you are going to do something like this
you must do exactly this. There may be several elective
in a general area, for example, there are several electronic
protocols, and several routing protocols

4.2.4. Limited Use

These protocols are for use in limited circumstances. This may
because of their experimental state, specialized nature,
functionality, or historic state

4.2.5. Not Recommended

These protocols are not recommended for general use. This may
because of their limited functionality, specialized nature,
experimental or historic state

5. The Standards

This section discusses in more detail the procedures used by the
Editor and the IESG in making decisions about the labeling
publishing of protocols as standards

5.1. The RFC Processing Decision

Here is the current decision table for processing submissions by
RFC Editor. The processing depends on who submitted it, and
status they want it to have




















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+==========================================================+
|**************| 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
Standard, or Draft Standard must come from the IESG, only

(3) Refer to an Area Director for review by a WG. Expect to
the document again only after approval by the IESG

(4) Notify both the IESG and IRSG. If no concerns are raised
two weeks then do Discretion (5), else RFC Editor to
the concerns or do Refer (3).

(5) RFC Editor's discretion. The RFC Editor decides if a
is needed and if so by whom. RFC Editor decides to publish
not





Internet Architecture Board [Page 11]

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Of course, in all cases the RFC Editor can request or make
changes for style, format, and presentation purposes

The IESG has designated the IESG Secretary as its agent
forwarding documents with IESG approval and for registering
in response to notifications (4) to the RFC Editor. Documents
Area Directors or Working Group Chairs may be considered in the
way as documents from "other".

5.2. The Standards Track

There is a part of the STATUS and STATE categorization that is
the standards track. Actually, only the changes of state
significant to the progression along the standards track, though
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.
protocol will normally be expected to remain in a temporary state
several months (minimum six months for proposed standard,
four months for draft standard). A protocol may be in a long
state for many years

A protocol may enter the standards track only on the
of the IESG; and may move from one state to another along the
only on the recommendation of the IESG. That is, it takes action
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
made as to the eventual STATUS, requirement level or
(elective, recommended, or required) the protocol will have,
a somewhat less stringent current status may be assigned, and it
is placed in the the proposed standard STATE with that status.
the initial placement of a protocol is into state 1. At any time
STATUS decision may be revisited
















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|
+<----------------------------------------------+
| ^
V 0 | 4
+-----------+ +===========+
| enter |-->----------------+-------------->|experiment |
+-----------+ | +=====+=====+
| |
V 1 |
+-----------+
| proposed |-------------->+
+--->+-----+-----+ |
| | |
| V 2 |
+<---+-----+-----+
| draft std |-------------->+
+--->+-----+-----+ |
| | |
| V 3 |
+<---+=====+=====+
| standard |-------------->+
+=====+=====+ |
|
V 5
+=====+=====+
| historic |
+===========+

The transition from proposed standard (1) to draft standard (2)
only be by action of the IESG and only after the protocol has
proposed standard (1) for at least six months

The transition from draft standard (2) to standard (3) can only be
action of the IESG and only after the protocol has been
standard (2) for at least four months

Occasionally, the decision may be that the protocol is not ready
standardization and will be assigned to the experimental state (4).
This is off the standards track, and the protocol may be
to enter the standards track after further work. There are
paths into the experimental and historic states that do not
IESG action

Sometimes one protocol is replaced by another and thus
historic, or it may happen that a protocol on the standards track
in a sense overtaken by another protocol (or other events)
becomes historic (state 5).




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6. The

Subsection 6.1 lists recent RFCs and other changes. Subsections 6.2
- 6.9 list the standards in groups by protocol state

6.1. Recent

6.1.1. New RFCs

1540 - This memo

1539 - The Tao of IETF - A Guide for New Attendees of the
Engineering Task

This is an information document and does not specify
level of standard

1538 - Advanced SNA/IP : A Simple SNA Transport

This is an information document and does not specify
level of standard

1537 - Common DNS Data File Configuration

This is an information document and does not specify
level of standard

1536 - Common DNS Implementation Errors and Suggested

This is an information document and does not specify
level of standard

1535 - A Security Problem and Proposed Correction With

DNS

This is an information document and does not specify
level of standard

1534 - Interoperation Between DHCP and

A Proposed Standard protocol

1533 - DHCP Options and BOOTP Vendor

A Proposed Standard protocol





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1532 - Clarifications and Extensions for the Bootstrap

A Proposed Standard protocol

1531 - Dynamic Host Configuration

A Proposed Standard protocol

1530 - Principles of Operation for the TPC.
Subdomain: General Principles and

This is an information document and does not specify
level of standard

1529 - Principles of Operation for the TPC.INT Subdomain
Remote Printing -- Administrative

This is an information document and does not specify
level of standard

1528 - Principles of Operation for the TPC.INT Subdomain
Printing -- Technical

An Experimental protocol

1527 - What Should We Plan Given the Dilemma of the Network

This is an information document and does not specify
level of standard

1526 - Assignment of System Identifiers for TUBA/CLNP

This is an information document and does not specify
level of standard

1525 - Definitions of Managed Objects for Source Routing

A Proposed Standard protocol

1524 - A User Agent Configuration Mechanism For Multimedia
Format

This is an information document and does not specify
level of standard







Internet Architecture Board [Page 15]

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1523 - The text/enriched MIME Content-

This is an information document and does not specify
level of standard

1522 - MIME (Multipurpose Internet Mail Extensions) Part Two
Message Header Extensions for Non-ASCII

A Draft Standard protocol

1521 - MIME (Multipurpose Internet Mail Extensions) Part One
Mechanisms for Specifying and Describing the Format
Internet Message

A Draft Standard protocol

1520 - Exchanging Routing Information Across Provider
in the CIDR

This is an information document and does not specify
level of standard

1519 - Classless Inter-Domain Routing (CIDR): an
Assignment and Aggregation

A Proposed Standard protocol

1518 - An Architecture for IP Address Allocation with

A Proposed Standard protocol

1517 - Applicability Statement for the Implementation of
Inter-Domain Routing (CIDR

A Proposed Standard protocol

1516 - 802.3 Repeater

A Draft Standard protocol

1515 - Definitions of Managed Objects for IEEE 802.3
Attachment Units (MAUs

A Proposed Standard protocol

1514 - Host Resources

A Proposed Standard protocol



Internet Architecture Board [Page 16]

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1513 - Token Ring Extensions to the Remote Network Monitoring

A Proposed Standard protocol

1512 - FDDI Management Information

A Proposed Standard protocol

1511 - Common Authentication Technology

This is an information document and does not specify
level of standard

1510 - The Kerberos Network Authentication Service (V5)

A Proposed Standard protocol

1509 - Generic Security Service API : C-

A Proposed Standard protocol

1508 - Generic Security Service Application Program

A Proposed Standard protocol

1507 - DASS - Distributed Authentication Security

An Experimental protocol

1506 - A Tutorial on Gatewaying between X.400 and Internet

This is an information document and does not specify
level of standard

1505 - Encoding Header Field for Internet

An Experimental protocol

1504 - Appletalk Update-Based Routing Protocol: Enhanced


This is an information document and does not specify
level of standard

1503 - Algorithms for Automating Administration in SNMPv2

This is an information document and does not specify
level of standard



Internet Architecture Board [Page 17]

RFC 1540 Internet Standards October 1993


1502 - X.400 Use of Extended Character

A Proposed Standard protocol

6.1.2. Other Changes

The following are changes to protocols listed in the
edition

No changes to report









































Internet Architecture Board [Page 18]

RFC 1540 Internet Standards October 1993


6.2. Standard

Protocol Name Status RFC STD *
======== ===================================== ======== ==== === =
-------- Internet Official Protocol Standards Req 1540 1
-------- Assigned Numbers Req 1340 2
-------- Host Requirements - Communications Req 1122 3
-------- Host Requirements - Applications Req 1123 3
-------- Gateway Requirements Req 1009 4
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
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
EGP Exterior Gateway Protocol Rec 904 18
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
RIP Routing Information Protocol Ele 1058 34
TP-TCP ISO Transport Service on top of the TCP Ele 1006 35

[Note: an asterisk at the end of a line indicates a change from
previous edition of this document.]






Internet Architecture Board [Page 19]

RFC 1540 Internet Standards October 1993


Applicability Statements

IGMP -- The Internet Architecture Board intends to move
general adoption of IP multicasting, as a more efficient
than broadcasting for many applications. The host interface has
standardized in RFC-1112; however, multicast-routing gateways are
the experimental stage and are not widely available. An
host should support all of RFC-1112, except for the IGMP
itself which is optional; see RFC-1122 for more details.
without IGMP, implementation of RFC-1112 will provide an
advance: IP-layer access to local network multicast addressing.
is expected that IGMP will become recommended for all hosts
gateways at some future date

SMI, MIB-II SNMP -- The Internet Architecture Board recommends
all IP and TCP implementations be network manageable. At the
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
and used in the Internet. However, both implementors and
should be aware that RIP has some serious technical limitations as
routing protocol. The IETF is currently developing
candidates for a new standard "open" routing protocol with
properties than RIP. The IAB urges the Internet community to
these developments, and to implement the new protocol when it
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
TCP/IP protocols. The Internet Engineering Task Force is
strategies for interoperation. RFC-1006 provides one
mode, in which TCP/IP is used to emulate TP0 in order to support
applications. Hosts that wish to run OSI connection-
applications in this mode should use the procedure described in RFC
1006. In the future, the IAB expects that a major portion of
Internet will support both TCP/IP and OSI (inter-)network
in parallel, and it will then be possible to run OSI
across the Internet using full OSI protocol "stacks".












Internet Architecture Board [Page 20]

RFC 1540 Internet Standards October 1993


6.3. Network-Specific Standard

All Network-Specific Standards have Elective status

Protocol Name State RFC STD *
======== ===================================== ===== ===== === =
IP-FR Multiprotocol over Frame Relay Draft 1490
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-HIPPI IP and ARP on HIPPI Prop 1374
IP-X.25 X.25 and ISDN in the Packet Mode Prop 1356
IP-SMDS IP Datagrams over the SMDS Service Prop 1209
IP-FDDI Internet Protocol on FDDI Networks Draft 1188
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

[Note: an asterisk at the end of a line indicates a change from
previous edition of this document.]

Applicability Statements

It is expected that a system will support one or more
networks and for each physical network supported the
protocols from the above list must be supported. That is, it
elective to support any particular type of physical network, and
the physical networks actually supported it is required that they
supported exactly according to the protocols in the above list.
also the Host and Gateway Requirements RFCs for more
information on network-specific ("link layer") protocols










Internet Architecture Board [Page 21]

RFC 1540 Internet Standards October 1993


6.4. Draft Standard

Protocol Name Status
======== ===================================== ============== =====
------- Message Header Ext. of Non-ASCII Text Elective 1522*
MIME Multipurpose Internet Mail Extensions Elective 1521*
802.3-MIB IEEE 802.3 Repeater MIB Elective 1516*
BRIDGE-MIB BRIDGE-MIB Elective 1493
ETHER-MIB Ethernet MIB Elective 1398
NTPV3 Network Time Protocol (Version 3) Elective 1305
IP-MTU Path MTU Discovery Elective 1191
FINGER Finger Protocol Elective 1288
BGP3 Border Gateway Protocol 3 (BGP-3) Elective 1267,1268
OSPF2 Open Shortest Path First Routing V2 Elective 1247
POP3 Post Office Protocol, Version 3 Elective 1460
PPP Point to Point Protocol Elective 1171
BOOTP Bootstrap Protocol Recommended 951,1497
NICNAME WhoIs Protocol Elective 954

[Note: an asterisk at the end of a line indicates a change from
previous edition of this document.]

Applicability Statements

PPP -- Point to Point Protocol is a method of sending IP over
lines, which are a type of physical network. It is anticipated
PPP will be advanced to the network-specifics standard protocol
in the future























Internet Architecture Board [Page 22]

RFC 1540 Internet Standards October 1993


6.5. Proposed Standard

Protocol Name Status
======== ===================================== ============== =====
DHCP-BOOTP Interoperation Between DHCP and BOOTP Elective 1534*
DHCP-BOOTP DHCP Options and BOOTP Vendor Extensions Elective 1533*
BOOTP Clarifications and Extensions BOOTP Elective 1532*
DHCP Dynamic Host Configuration Protocol Elective 1531*
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*
GSSAPI Generic Security Service Application... Elective 1508*
DASS Distributed Authentication Security... Elective 1507*
-------- X.400 Use of Extended Character Sets Elective 1502*
HARPOON Rules for Downgrading Messages... Elective 1496
Mapping MHS/RFC-822 Message Body Mapping Elective 1495
Equiv X.400/MIME Body Equivalences Elective 1494
X.500syn X.500 String Representation ... Elective 1488
X.500lite X.500 Lightweight ... Elective 1487
STR-REP String Representation ... Elective 1485
OSI-Dir OSI User Friendly Naming ... Elective 1484
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
SNMPv2 Coexistence between SNMPv1 and SNMPv2 Elective 1452
SNMPv2 Manager-to-Manager MIB Elective 1451
SNMPv2 Management Information Base for SNMPv2 Elective 1450
SNMPv2 Transport Mappings for SNMPv2 Elective 1449
SNMPv2 Protocol Operations for SNMPv2 Elective 1448
SNMPv2 Party MIB for SNMPv2 Elective 1447
SNMPv2 Security Protocols for SNMPv2 Elective 1446
SNMPv2 Administrative Model for SNMPv2 Elective 1445
SNMPv2 Conformance Statements for SNMPv2 Elective 1444
SNMPv2 Textual Conventions for SNMPv2 Elective 1443
SNMPv2 SMI for SNMPv2 Elective 1442
SNMPv2 Introduction to SNMPv2 Elective 1441
SMTP-SIZE SMTP Service Ext for Message Size Elective 1427



Internet Architecture Board [Page 23]

RFC 1540 Internet Standards October 1993


SMTP-8BIT SMTP Service Ext or 8bit-MIMEtransport Elective 1426
SMTP-EXT SMTP Service Extensions Elective 1425
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
RIP2-MIB RIP Version 2 MIB Extension Elective 1389
RIP2 RIP Version 2-Carrying Additional Info. Elective 1388
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
PPP-DNCP PPP DECnet Phase IV Control Protocol Elective 1376
TABLE-MIB IP Forwarding Table MIB Elective 1354
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-AUTH PPP Authentication Elective 1334
PPP-LINK PPP Link Quality Monitoring Elective 1333
PPP-IPCP PPP Control Protocol Elective 1332
PPP Point-to-Point Protocol (PPP) Elective 1331
------- X.400 1988 to 1984 downgrading Elective 1328
------- Mapping between X.400(1988) Elective 1327
TCP-EXT TCP Extensions for High Performance Elective 1323
------- Def. Man. Objs Parallel-printer-like Elective 1318
------- Def. Man Objs RS-232-like Elective 1317
------- Def. Man. Objs. Character Stream Elective 1316
FRAME-MIB Management Information Base for Frame Elective 1315
NETFAX File Format for the Exchange of Images Elective 1314
SIP-MIB SIP Interface Type MIB Elective 1304
IARP Inverse Address Resolution Protocol Elective 1293
DECNET-MIB DECNET MIB Elective 1289
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
RMON-MIB Remote Network Monitoring MIB Elective 1271



Internet Architecture Board [Page 24]

RFC 1540 Internet Standards October 1993


BGP-MIB Border Gateway Protocol MIB (Version 3) Elective 1269
ICMP-ROUT ICMP Router Discovery Messages Elective 1256
OSPF-MIB OSPF Version 2 MIB Elective 1253
IPSO DoD Security Options for IP Elective 1108
AT-MIB Appletalk MIB Elective 1243
OSI-UDP OSI TS on UDP Elective 1240
STD-MIBs Reassignment of Exp MIBs to Std MIBs Elective 1239
OSI-NSAP Guidelines for OSI NSAP Allocation Elective 1237
IPX-IP Tunneling IPX Traffic through IP Nets Elective 1234
802.5-MIB IEEE 802.5 Token Ring MIB Elective 1231
GINT-MIB Extensions to the Generic-Interface MIB Elective 1229
PPP-EXT PPP Extensions for Bridging Elective 1220
IS-IS OSI IS-IS for TCP/IP Dual