RFC 2600
This document is obsolete. Please refer to RFC 2700.

Network Working Group                    Internet Engineering Task Force
Request for Comments: 2600                                   J. Reynolds
Obsoletes: 2500, 2400, 2300, 2200, 2000, 1920,                 R. Braden
1880, 1800, 1780, 1720, 1610, 1600, 1540, 1500,                  Editors
1410, 1360, 1280, 1250, 1200, 1140, 1130, 1100,               March 2000
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 Engineering Task Force
   (IETF).  This memo is an Internet Standard.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2000).  All Rights Reserved.


   This memo is published by the RFC Editor in accordance with Section
   2.1 of "The Internet Standards Process -- Revision 3", RFC 2026,
   which specifies the rules and procedures by which all Internet
   standards are set.  This memo is prepared by the RFC Editor for the
   IESG and IAB.  Please see http://www.rfc-editor.org for later updates
   to this document.

IETF                        Standards Track                     [Page 1]

RFC 2600                   Internet Standards                 March 2000

Table of Contents

   1.  Contacts . . . . . . . . . . . . . . . . . . . . . . . . .   2
   1.1.  IAB, IETF, and IRTF Contacts . . . . . . . . . . . . . .   2
   1.2.  Internet Assigned Numbers Authority (IANA) Contact . . .   2
   1.3.  Request for Comments Editor (RFC Editor) Contact . . . .   2
   1.4.  Requests for Comments Distribution Contact . . . . . . .   3
   1.5.  Sources for Requests for Comments  . . . . . . . . . . .   3
   2.  Current Technical Specifications . . . . . . . . . . . . .   4
   2.1.  Standard Protocols Ordered by STD  . . . . . . . . . . .   4
   2.2.  Standard Protocols Ordered by RFC  . . . . . . . . . . .   7
   2.3.  Draft Standard Protocols . . . . . . . . . . . . . . . .   9
   2.4.  Proposed Standard Protocols  . . . . . . . . . . . . . .  11
   2.5.  Experimental Protocols . . . . . . . . . . . . . . . . .  24
   2.6.  Historic Protocols . . . . . . . . . . . . . . . . . . .  28
   3.  Security Considerations  . . . . . . . . . . . . . . . . .  30
   4.  Editors' Addresses . . . . . . . . . . . . . . . . . . . .  30
   5.  Full Copyright Statement . . . . . . . . . . . . . . . . .  31

1.  Contacts

   This section contains important contact information, for reference.

1.1.  IAB, IETF, and IRTF Contacts

   Internet Architecture Board (IAB) Contact: www.iab.org

   Internet Engineering Task Force (IETF) Contact: www.ietf.org

   Internet Research Task Force (IRTF) Contact: www.irtf.org

1.2.  Internet Assigned Numbers Authority (IANA) Contact

   See: www.iana.org

1.3.  Request for Comments Editor (RFC Editor) Contact

   See: www.rfc-editor.org

   The RFC Editor publishes documents that are the output of the IETF
   process or are submitted individually via electronic mail.  Further
   information about the RFC series is contained in section 2.1, RFC
   2026 and at http://www.rfc-editor.org.

IETF                        Standards Track                     [Page 2]

RFC 2600                   Internet Standards                 March 2000

   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".

1.4.  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

1.5.  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

IETF                        Standards Track                     [Page 3]

RFC 2600                   Internet Standards                 March 2000

2.  Current Technical Specifications

2.1.  Standard Protocols Ordered by STD

Mnemonic   Title                                             RFC# STD#
--------   Internet Official Protocol Standards              2600   1
--------   Assigned Numbers                                  1700   2
--------   Host Requirements - Applications                  1123   3
--------   Host Requirements - Communications                1122   3
--------   Requirements for Internet gateways   (Historic)   1009   4
IP         Internet Protocol                                  791   5
ICMP       Internet Control Message Protocol                  792   5
---------  Broadcasting Internet Datagrams                    919   5
---------  Broadcasting Internet datagrams in the presence    922   5
              of subnets
--------   Internet Standard Subnetting Procedure             950   5
IGMP       Host extensions for IP multicasting               1112   5
UDP        User Datagram Protocol                             768   6
TCP        Transmission Control Protocol                      793   7
TELNET     Telnet Protocol Specification                      854   8
TELNET     Telnet Option Specifications                       855   8
FTP        File Transfer Protocol                             959   9
SMTP       Simple Mail Transfer Protocol                      821  10
SMTP-EXT   SMTP Service Extensions                           1869  10
SMTP-SIZE  SMTP Service Extension for Message Size           1870  10
MAIL       Standard for the format of ARPA Internet text      822  11
NTPV2      Network Time Protocol (version 2) specification   1119  12
              and implementation
DOMAIN     Domain names - concepts and facilities            1034  13
DOMAIN     Domain names - implementation and specification   1035  13
DNS-MX     Mail routing and the domain system                 974  14
SNMP       Simple Network Management Protocol (SNMP)         1157  15
SMI        Structure and identification of management        1155  16
              information for TCP/IP-based internets
Concise-MI Concise MIB definitions                           1212  16
MIB-II     Management Information Base for Network           1213  17
              Management of TCP/IP-based internets:MIB-II
EGP        Exterior Gateway Protocol formal specification     904  18
NETBIOS    Protocol standard for a NetBIOS service on        1001  19
              a TCP/UDP transport
NETBIOS    Protocol standard for a NetBIOS service on        1002  19
              a TCP/UDP transport
ECHO       Echo Protocol                                      862  20

IETF                        Standards Track                     [Page 4]

RFC 2600                   Internet Standards                 March 2000

DISCARD    Discard Protocol                                   863  21
CHARGEN    Character Generator Protocol                       864  22
QUOTE      Quote of the Day Protocol                          865  23
USERS      Active users                                       866  24
DAYTIME    Daytime Protocol                                   867  25
TIME       Time Protocol                                      868  26
TOPT-BIN   Telnet Binary Transmission                         856  27
TOPT-ECHO  Telnet Echo Option                                 857  28
TOPT-SUPP  Telnet Suppress Go Ahead Option                    858  29
TOPT-STAT  Telnet Status Option                               859  30
TOPT-TIM   Telnet Timing Mark Option                          860  31
TOPT-EXTOP Telnet Extended Options                            861  32
TFTP       The TFTP Protocol (Revision 2)                    1350  33
RIP        Routing Information Protocol    (Historic)        1058  34
TP-TCP     ISO transport services on top of the TCP          1006  35
IP-FDDI    Transmission of IP and ARP over FDDI Networks     1390  36*
ARP        Ethernet Address Resolution Protocol               826  37*
RARP       Reverse Address Resolution Protocol                903  38*
BBN1822    Internet Protocol on ARPANET                   BBN1822  39
IP-WB      Host Access Protocol specification                 907  40*
IP-E       Standard for the transmission of IP datagrams      894  41*
              over Ethernet networks
IP-EE      Standard for the transmission of IP datagrams      895  42*
              over experimental Ethernet networks
IP-IEEE    Standard for the transmission of IP datagrams     1042  43*
              over IEEE 802 networks
IP-DC      DCN local-network protocols                        891  44*
IP-HC      Internet Protocol on Network System's             1044  45*
IP-ARC     Transmitting IP traffic over ARCNET networks      1201  46*
IP-SLIP    Nonstandard for transmission of IP datagrams      1055  47*
              over serial lines
IP-NETBIOS Standard for the transmission of IP datagrams     1088  48*
              over NetBIOS networks
IP-IPX     Standard for the transmission of 802.2 packets    1132  49*
              over IPX networks
ETHER-MIB  Definitions of Managed Objects for the Ethernet-  1643  50
              like Interface Types
PPP        The Point-to-Point Protocol (PPP)                 1661  51
PPP-HDLC   PPP in HDLC-like Framing                          1662  51
IP-SMDS    Transmission of IP datagrams over the SMDS        1209  52
POP3       Post Office Protocol - Version 3                  1939  53
OSPF2      OSPF Version 2                                    2328  54
IP-FR      Multiprotocol Interconnect over Frame Relay       2427  55
RIP2       RIP Version 2                                     2453  56
RIP2-APP   RIP Version 2 Protocol Applicability Statement    1722  57

IETF                        Standards Track                     [Page 5]

RFC 2600                   Internet Standards                 March 2000

SMIv2      Structure of Management Information Version       2578  58
              2 (SMIv2)
CONV-MIB   Textual Conventions for SMIv2                     2579  58
CONF-MIB   Conformance Statements for SMIv2                  2580  58

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

IETF                        Standards Track                     [Page 6]

RFC 2600                   Internet Standards                 March 2000

2.2.  Standard Protocols Ordered by RFC

Mnemonic   Title                                                  RFC#
CONF-MIB   Conformance Statements for SMIv2                       2580
CONV-MIB   Textual Conventions for SMIv2                          2579
SMIv2      Structure of Management Information Version 2 (SMIv2)  2578
--------   Internet Official Protocol Standards                   2500
RIP2       RIP Version 2                                          2453
IP-FR      Multiprotocol Interconnect over Frame Relay            2427
OSPF2      OSPF Version 2                                         2328
POP3       Post Office Protocol - Version 3                       1939
SMTP-SIZE  SMTP Service Extension for Message Size Declaration    1870
SMTP-EXT   SMTP Service Extensions                                1869
RIP2-APP   RIP Version 2 Protocol Applicability Statement         1722
--------   Assigned Numbers                                       1700
PPP-HDLC   PPP in HDLC-like Framing                               1662
PPP        The Point-to-Point Protocol (PPP)                      1661
ETHER-MIB  Definitions of Managed Objects for the Ethernet-       1643
              like Interface Types
IP-FDDI    Transmission of IP and ARP over FDDI Networks          1390*
TFTP       The TFTP Protocol (Revision 2)                         1350
MIB-II     Management Information Base for Network Management     1213
              of TCP/IP-based internets:MIB-II
Concise-MI Concise MIB definitions                                1212
IP-SMDS    Transmission of IP datagrams over the SMDS Service     1209
IP-ARC     Transmitting IP traffic over ARCNET networks           1201*
SNMP       Simple Network Management Protocol (SNMP)              1157
SMI        Structure and identification of management information 1155*
              for TCP/IP-based internets
IP-IPX     Standard for the transmission of 802.2 packets         1132*
              over IPX networks
--------   Host Requirements - Applications                       1123
--------   Host Requirements - Communications                     1122
NTPV2      Network Time Protocol (version 2) specification        1119*
              and implementation
IGMP       Host extensions for IP multicasting                    1112
IP-NETBIOS Standard for the transmission of IP datagrams over     1088*
              NetBIOS networks
RIP        Routing Information Protocol    (Historic)             1058
IP-SLIP    Nonstandard for transmission of IP datagrams over      1055*
              serial lines
IP-HC      Internet Protocol on Network System's HYPERchannel     1044*
IP-IEEE    Standard for the transmission of IP datagrams over     1042*
              IEEE 802 networks
DOMAIN     Domain names - implementation and specification        1035
DOMAIN     Domain names - concepts and facilities                 1034

IETF                        Standards Track                     [Page 7]

RFC 2600                   Internet Standards                 March 2000

--------   Requirements for Internet gateways   (Historic)        1009
TP-TCP     ISO transport services on top of the TCP               1006
NETBIOS    Protocol standard for a NetBIOS service on a TCP/UDP   1002
NETBIOS    Protocol standard for a NetBIOS service on a TCP/UDP   1001
DNS-MX     Mail routing and the domain system                      974
FTP        File Transfer Protocol                                  959
--------   Internet Standard Subnetting Procedure                  950
---------  Broadcasting Internet datagrams in the presence         922
              of subnets
---------  Broadcasting Internet Datagrams                         919
IP-WB      Host Access Protocol specification                      907*
EGP        Exterior Gateway Protocol formal specification(Historic)904
RARP       Reverse Address Resolution Protocol                     903*
IP-EE      Standard for the transmission of IP datagrams over      895*
              experimental Ethernet networks
IP-E       Standard for the transmission of IP datagrams over      894*
              Ethernet networks
IP-DC      DCN local-network protocols                             891*
TIME       Time Protocol                                           868
DAYTIME    Daytime Protocol                                        867
USERS      Active users                                            866
QUOTE      Quote of the Day Protocol                               865
CHARGEN    Character Generator Protocol                            864
DISCARD    Discard Protocol                                        863
ECHO       Echo Protocol                                           862
TOPT-EXTOP Telnet Extended Options                                 861
TOPT-TIM   Telnet Timing Mark Option                               860
TOPT-STAT  Telnet Status Option                                    859
TOPT-SUPP  Telnet Suppress Go Ahead Option                         858
TOPT-ECHO  Telnet Echo Option                                      857
TOPT-BIN   Telnet Binary Transmission                              856
TELNET     Telnet Option Specifications                            855
TELNET     Telnet Protocol Specification                           854
ARP        Ethernet Address Resolution Protocol                    826*
MAIL       Standard for the format of ARPA Internet text messages  822
SMTP       Simple Mail Transfer Protocol                           821
TCP        Transmission Control Protocol                           793
ICMP       Internet Control Message Protocol                       792
IP         Internet Protocol                                       791
UDP        User Datagram Protocol                                  768
BBN1822    Internet Protocol on ARPANET                        BBN1822

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

IETF                        Standards Track                     [Page 8]

RFC 2600                   Internet Standards                 March 2000

2.3.  Draft Standard Protocols

Mnemonic   Title                                                  RFC#
VACM-SNMP  View-based Access Control Model (VACM) for the         2575
              Simple Network Management Protocol (SNMP)
USM-SNMPV3 User-based Security Model (USM) for version 3 of       2574
              the Simple Network Management Protocol (SMPv3)
SNMP-APP   SNMP Applications                                      2573
MPD-SNMP   Message Processing and Dispatching for the Simple      2572
              Network Management Protocol (SNMP)
ARCH-SNMP  An Architecture for Describing SNMP Management         2571
ICMPv6     Internet Control Message Protocol (ICMPv6) for         2463
              the Internet Protocol Version 6 (IPv6) Specification
IPV6-AUTO  IPv6 Stateless Address Autoconfiguration               2462
IPV6-ND    Neighbor Discovery for IP Version 6 (IPv6)             2461
IPV6       Internet Protocol, Version 6 (IPv6) Specification      2460
URI-GEN    Uniform Resource Identifiers (URI)                     2396
IARP       Inverse Address Resolution Protocol                    2390
TN3270E    TN3270 Enhancements                                    2355
TFTP-Opt   TFTP Timeout Interval and Transfer Size Options        2349
TFTP-Blk   TFTP Blocksize Option                                  2348
TFTP-Ext   TFTP Option Extension                                  2347
ONE-PASS   A One-Time Password System                             2289
UTF-8      UTF-8, a transformation format of ISO 10646            2279*
SMTP-Pipe  SMTP Service Extension for Command Pipelining          2197
DHCP-BOOTP DHCP Options and BOOTP Vendor Extensions               2132
DHCP       Dynamic Host Configuration Protocol                    2131
FRAME-MIB  Management Information Base for Frame Relay DTEs       2115
              Using SMIv2
IP-HIPPI   IP over HIPPI                                          2067*
MIME-CONF  Multipurpose Internet Mail Extensions (MIME) Part File 2049
MIME-MSG   MIME (Multipurpose Internet Mail Extensions) Part      2047
MIME-MEDIA Multipurpose Internet Mail Extensions (MIME) Part Two  2046
MIME       Multipurpose Internet Mail Extensions (MIME) Part One  2045
PPP-CHAP   PPP Challenge Handshake Authentication Protocol (CHAP) 1994
PPP-MP     The PPP Multilink Protocol (MP)                        1990
PPP-LINK   PPP Link Quality Monitoring                            1989
COEX-MIB   Coexistence between Version 1 and Version 2 of         1908
              the Internet-standard Network Management Framework
SNMPv2-MIB Management Information Base for Version 2 of the       1907
              Simple Network Management Protocol (SNMPv2)
TRANS-MIB  Transport Mappings for Version 2 of the Simple         1906
              Network Management Protocol (SNMPv2)

IETF                        Standards Track                     [Page 9]

RFC 2600                   Internet Standards                 March 2000

OPS-MIB    Protocol Operations for Version 2 of the Simple        1905
              Network Management Protocol (SNMPv2)
CON-MD5    The Content-MD5 Header Field                           1864
OSPF-MIB   OSPF Version 2 Management Information Base             1850
RPC        XDR                                                    1832*
STR-REP    A String Representation of Distinguished Names         1779
X.500syn   The String Representation of Standard Attribute        1778
X.500lite  Lightweight Directory Access Protocol                  1777
BGP-4-APP  Application of the Border Gateway Protocol in the      1772
BGP-4      A Border Gateway Protocol 4 (BGP-4)                    1771
PPP-DNCP   The PPP DECnet Phase IV Control Protocol (DNCP)        1762
RMON-MIB   Remote Network Monitoring Management Information Base  1757
802.5-MIB  IEEE 802.5 MIB using SMIv2                             1748
RIP2-MIB   RIP Version 2 MIB Extension                            1724
--------   RIP Version 2 Protocol Applicability Statement         1722
SIP-MIB    Definitions of Managed Objects for SMDS Interfaces     1694
              using SMIv2
--------   Definitions of Managed Objects for Parallel-printer-   1660
              like Hardware Devices using SMIv2
--------   Definitions of Managed Objects for RS-232-like         1659
              Hardware Devices using SMIv2
--------   Definitions of Managed Objects for Character Stream    1658
              Devices using SMIv2
BGP-4-MIB  Definitions of Managed Objects for the Fourth Version  1657
              of the Border Gateway Protocol (BGP-4) using SMIv2
SMTP-8BIT  SMTP Service Extension for 8bit-MIMEtransport          1652
OSI-NSAP   Guidelines for OSI NSAP Allocation in the Internet     1629
ISO-TS-ECH An Echo Function for CLNP (ISO 8473)                   1575
DECNET-MIB DECnet Phase IV MIB Extensions                         1559
--------   Clarifications and Extensions for the Bootstrap        1542
DHCP-BOOTP Interoperation Between DHCP and BOOTP                  1534
BRIDGE-MIB Definitions of Managed Objects for Bridges             1493
IP-X.25    Multiprotocol Interconnect on X.25 and ISDN in         1356*
              the Packet Mode
NTPV3      Network Time Protocol (Version 3) Specification,       1305
FINGER     The Finger User Information Protocol                   1288
IP-MTU     Path MTU discovery                                     1191
TOPT-LINE  Telnet Linemode Option                                 1184
NICNAME    NICNAME/WHOIS                                           954
BOOTP      Bootstrap Protocol                                      951

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

IETF                        Standards Track                    [Page 10]

RFC 2600                   Internet Standards                 March 2000

2.4.  Proposed Standard Protocols

Mnemonic   Title                                                  RFC#
--------   Generic Routing Encapsulation (GRE)                    2784*
--------   A DNS RR for specifying the location of services       2782*
              (DNS SRV)
--------   Multicast-Scope Zone Announcement Protocol (MZAP)      2776*
RPSL       Routing Policy System Replication                      2769*
--------   Network Address Translation - Protocol Translation     2766*
--------   Stateless IP/ICMP Translation Algorithm (SIIT)         2765*
--------   Identity Representation for RSVP                       2752*
RSVP       Signaled Preemption Priority Policy Element            2751*
--------   RSVP Extensions for Policy Control                     2750*
--------   COPS usage for RSVP                                    2749*
QOS        The COPS (Common Open Policy Service) Protocol         2748*
--------   RSVP Cryptographic Authentication                      2747*
--------   RSVP Operation Over IP Tunnels                         2746*
--------   RSVP Diagnostic Messages                               2745*
GSS-API    Generic Security Service API Version 2                 2744*
GSS-API    Generic Security Service Application Program Interface 2743*
              Version 2, Update 1
--------   Definitions of Managed Objects for Extensible SNMP     2742*
SNMP       Agent Extensibility (AgentX) Protocol Version 1        2741*
--------   OSPF for IPv6                                          2740*
--------   Calendar Attributes for vCard and LDAP                 2739*
--------   Corrections to "A Syntax for Describing Media Feature  2738*
--------   Entity MIB (Version 2)                                 2737*
--------   NHRP Support for Virtual Private Networks              2735*
--------   IPv4 over IEEE 1394                                    2734*
--------   An RTP Payload Format for Generic Forward Error        2733*
--------   Format for Literal IPv6 Addresses in URL's             2732*
--------   Multicast Address Dynamic Client Allocation Protocol   2730*
--------   The Transmission of IP Over the Vertical Blanking      2728*
              Interval of a Television Signal
--------   PGP Authentication for RIPE Database Updates           2726*
--------   Routing Policy System Security                         2725*
--------   Traffic Flow Measurement                               2720*
--------   Addition of Kerberos Cipher Suites to Transport        2712*
              Layer Security (TLS)
--------   IPv6 Router Alert Option                               2711*
--------   Multicast Listener Discovery (MLD) for IPv6            2710*

IETF                        Standards Track                    [Page 11]

RFC 2600                   Internet Standards                 March 2000

--------   Integrated Services Mappings for Low Speed Networks    2688*
PPP        PPP in a Real-time Oriented HDLC-like Framing          2687*
PPP        The Multi-Class Extension to Multi-Link PPP            2686*
IP         Virtual Private Networks Identifier                    2685*
--------   Multiprotocol Encapsulation over ATM Adaptation Layer5 2684*
--------   A Round-trip Delay Metric for IPPM                     2681*
--------   A One-way Packet Loss Metric for IPPM                  2680*
--------   A One-way Delay Metric for IPPM                        2679*
IPPM-MET   IPPM Metrics for Measuring Connectivity                2678*
--------   Definitions of Managed Objects for the NBMA Next       2677*
              Hop Resolution Protocol (NHRP)
--------   IPv6 Jumbograms                                        2675*
--------   Definitions of Managed Objects for Bridges with        2674*
              Traffic Classes, Multicast Filtering and Virtual
              LAN Extensions
DNS        Binary Labels in the Domain Name System                2673*
--------   Non-Terminal DNS Name Redirection                      2672*
--------   Extension Mechanisms for DNS (EDNS0)                   2671*
--------   Radio Frequency (RF) Interface Management Information  2670*
              Base for MCNS/DOCSIS compliant RF interfaces
--------   DOCSIS Cable Device MIB Cable Device Management        2669*
              Information Base for DOCSIS compliant Cable
              Modems and Cable Modem Termination Systems
--------   Definitions of Managed Objects for IEEE 802.3 Medium   2668*
              Attachment Units (MAUs)
--------   IP Tunnel MIB                                          2667*
--------   Definitions of Managed Objects for the Ethernet-       2665*
              like Interface Types
--------   Definitions of Managed Objects for the ADSL Lines      2662*
PPP        Layer Two Tunneling Protocol "L2TP"                    2661*
--------   RTP Payload Format for PureVoice(tm) Audio             2658*
--------   CIP Transport Protocols                                2653*
--------   MIME Object Definitions for the Common Indexing        2652*
              Protocol (CIP)
--------   The Architecture of the Common Indexing Protocol (CIP) 2651*
--------   The Text/Plain Format Parameter                        2646*
--------   ON-DEMAND MAIL RELAY (ODMR) SMTP with Dynamic IP       2645*
INT-FTP    Internationalization of the File Transfer Protocol     2640*
--------   Enhanced Security Services for S/MIME                  2634*
--------   S/MIME Version 3 Message Specification                 2633*
--------   S/MIME Version 3 Certificate Handling                  2632*
--------   Diffie-Hellman Key Agreement Method                    2631*
--------   Cryptographic Message Syntax                           2630*
--------   IP and ARP over Fibre Channel                          2625*
--------   NFS Version 2 and Version 3 Security Issues and        2623*
              the NFS Protocol's Use of RPCSEC_GSS and Kerberos V5
--------   Routing Policy Specification Language (RPSL)           2622*

IETF                        Standards Track                    [Page 12]

RFC 2600                   Internet Standards                 March 2000

--------   RADIUS Authentication Server MIB                       2619*
--------   RADIUS Authentication Client MIB                       2618*
DAA        HTTP Authentication: Basic and Digest Access           2617*
HTTP-1.1   Hypertext Transfer Protocol -- HTTP/1.1                2616*
--------   PPP over SONET/SDH                                     2615*
--------   Remote Network Monitoring MIB Extensions for Switched  2613*
              Networks Version 1.0
DHCP-SLP   DHCP Options for Service Location Protocol             2610*
--------   Service Templates and Service                          2609*
SLP        Service Location Protocol, Version 2                   2608*
--------   Directory Server Monitoring MIB                        2605*
--------   ILMI-Based Server Discovery for NHRP                   2603*
--------   ILMI-Based Server Discovery for MARS                   2602*
--------   ILMI-Based Server Discovery for ATMARP                 2601*
--------   An Expedited Forwarding PHB                            2598*
--------   Assured Forwarding PHB Group                           2597*
--------   Use of Language Codes in LDAP                          2596*
--------   Using TLS with IMAP, POP3 and ACAP                     2595*
--------   Definitions of Managed Objects for WWW Services        2594*
--------   Definitions of Managed Objects for the Delegation      2592*
              of Management Script
--------   Definitions of Managed Objects for Scheduling          2591*
              Management Operations
--------   Transmission of IPv6 Packets over Frame Relay          2590*
LDAPv3     Lightweight Directory Access Protocol (v3)             2589*
--------   Internet X.509 Public Key Infrastructure LDAPv2 Schema 2587*
--------   Internet X.509 Public Key Infrastructure Operational   2585
--------   Definitions of Managed Objects for APPN/HPR in         2584
              IP Networks
TCP-CC     TCP Congestion Control                                 2581
--------   Coexistence between Version 1, Version 2, and Version  2576*
              3 of the Internet-standard Network Management
APP-MIB    Application Management MIB                             2564
--------   DHCP Option to Disable Stateless Auto-Configuration    2563
              in IPv4 Clients
--------   Definitions of Protocol and Managed Objects for        2562
              TN3270E Response Time Collection Using SMIv2
--------   Base Definitions of Managed Objects for TN3270E        2561
              Using SMIv2
PKIX       X.509 Internet Public Key Infrastructure Online        2560*
              Certificate Status Protocol - OCSP
--------   Internet X.509 Public Key Infrastructure Operational   2559
              Protocols - LDAPv2
--------   Definitions of Managed Objects for the SONET/SDH       2558

IETF                        Standards Track                    [Page 13]

RFC 2600                   Internet Standards                 March 2000

              Interface Type
MHTML      MIME Encapsulation of Aggregate Documents, such        2557
              as HTML (MHTML)
--------   SMTP Service Extension for Authentication              2554
--------   Use of BGP-4 Multiprotocol Extensions for IPv6         2545
              Inter-Domain Routing
SIP        SIP                                                    2543
DHK-DNS    Storage of Diffie-Hellman Keys in the Domain Name      2539
              System (DNS)
SC-DNS     Storing Certificates in the Domain Name System (DNS)   2538
--------   RSA/MD5 KEYs and SIGs in the Domain Name System (DNS)  2537
--------   DSA KEYs and SIGs in the Domain Name System (DNS)      2536
DNS-SECEXT Domain Name System Security Extensions                 2535
--------   Media Features for Display, Print, and Fax             2534
--------   A Syntax for Describing Media Feature Sets             2533*
--------   Extended Facsimile Using Internet Mail                 2532*
--------   Content Feature Schema for Internet Fax                2531*
--------   Indicating Supported Media Features Using Extensions   2530*
              to DSN and MDN
--------   Transmission of IPv6 over IPv4 Domains without         2529
              Explicit Tunnels
--------   Reserved IPv6 Subnet Anycast Addresses                 2526
WEBDAV     HTTP Extensions for Distributed Authoring -- WEBDAV    2518
ATM-MIBMAN Definitions of Managed Objects for ATM Management      2515
ATM-TC-OID Definitions of Textual Conventions and                 2514
              OBJECT-IDENTITIES for ATM Management
--------   Managed Objects for Controlling the Collection         2513
              and Storage of Accounting Information for
              Connection-Oriented Networks
--------   Accounting Information for ATM Networks                2512
X.509-CRMF Internet X.509 Certificate Request Message Format      2511
PKICMP     Internet X.509 Public Key Infrastructure Certificate   2510
              Management Protocols
IPCOM-PPP  IP Header Compression over PPP                         2509
--------   Compressing IP/UDP/RTP Headers for Low-Speed Serial    2508
--------   IP Header Compression                                  2507
--------   Transmission of IPv6 Packets over ARCnet Networks      2497
DS3-E3-MIB Definitions of Managed Object for the DS3/E3 Interface 2496
--------   Definitions of Managed Objects for the DS1, E1,        2495
              DS2 and E2 Interface Types
-------    Definitions of Managed Objects for the DS0 and         2494
              DS0 Bundle Interface Type
--------   Textual Conventions for MIB Modules Using Performance  2493
              History Based on 15 Minute Intervals
IPv6ATMNET IPv6 over ATM Networks                                 2492
IPv6-NBMA  IPv6 over Non-Broadcast Multiple Access (NBMA)         2491

IETF                        Standards Track                    [Page 14]

RFC 2600                   Internet Standards                 March 2000

--------   SMTP Service Extension for Secure SMTP over TLS        2487
NAI        The Network Access Identifier                          2486
--------   DHCP Option for The Open Group's User Authentication   2485
--------   PPP LCP Internationalization Configuration Option      2484
--------   Gateways and MIME Security Multiparts                  2480
--------   The Simple and Protected GSS-API Negotiation Mechanism 2478
--------   Message Submission                                     2476
DIFFSRV    An Architecture for Differentiated Service             2475
--------   Definition of the Differentiated Services Field        2474
              (DS Field) in the IPv4 and IPv6 Headers
--------   Generic Packet Tunneling in IPv6 Specification         2473
IPv6-PPP   IP Version 6 over PPP                                  2472
--------   Transmission of IPv6 Packets over Token Ring Networks  2470
--------   Transmission of IPv6 Packets over FDDI Networks        2467
ICMPv6-MIB Management Information Base for IP Version 6           2466
--------   Management Information Base for IP Version 6           2465
--------   Transmission of IPv6 Packets over Ethernet Networks    2464
--------   Internet X.509 Public Key Infrastructure Certificate   2459
              and CRL Profile
EBN-MIB    Definitions of Managed Objects for Extended Border     2457
--------   Definitions of Managed Objects for APPN TRAPS          2456
APPN-MIB   Definitions of Managed Objects for APPN                2455
--------   IP Version 6 Management Information Base for the       2454
              User Datagram Protocol
--------   IP Version 6 Management Information Base for the       2452
              Transmission Control Protocol
--------   The ESP CBC-Mode Cipher Algorithms                     2451
POP3-EXT   POP3 Extension Mechanism                               2449
IMIP       iCalendar Message-Based Interoperability Protocol      2447
ITIP       iCalendar Transport-Independent Interoperability       2446
              Protocol (iTIP) Scheduling Events, BusyTime,
              To-dos and Journal Entries
ICALENDAR  Internet Calendaring and Scheduling Core Object        2445
              Specification (iCalendar)
OTP-SASL   The One-Time-Password SASL Mechanism                   2444
--------   OpenPGP Message Format                                 2440
--------   BGP Route Flap Damping                                 2439
--------   RTP Payload Format for JPEG-compressed Video           2435
--------   RTP Payload Format for BT.656 Video Encoding           2431
--------   RTP Payload Format for the 1998 Version of ITU-        2429
              T Rec. H.263 Video (H.263+)
--------   FTP Extensions for IPv6 and NATs                       2428
MIME-VCARD vCard MIME Directory Profile                           2426
TXT-DIR    A MIME Content-Type for Directory Information          2425

IETF                        Standards Track                    [Page 15]

RFC 2600                   Internet Standards                 March 2000

CONT-DUR   Content Duration MIME Header Definition                2424
MIME-VPIM  VPIM Voice Message MIME Sub-type Registration          2423
MIME-ADPCM Toll Quality Voice - 32 kbit/s ADPCM MIME Sub-type     2422
MIME-VP2   Voice Profile for Internet Mail - version 2            2421
3DESE      The PPP Triple-DES Encryption Protocol (3DESE)         2420*
DESE-BIS   The PPP DES Encryption Protocol, Version 2 (DESE-bis)  2419*
--------   Definitions of Managed Objects for Multicast over      2417
              UNI 3.0/3.1 based ATM Networks
---------  The NULL Encryption Algorithm and Its Use With IPsec   2410
IKE        The Internet Key Exchange (IKE)                        2409
ISAKMP     Internet Security Association and Key Management       2408
              Protocol (ISAKMP)
ISAKMPSEC  The Internet IP Security Domain of Interpretation      2407
              for ISAKMP
ESP        IP Encapsulating Security Payload (ESP)                2406
ESPDES-CBC The ESP DES-CBC Cipher Algorithm With Explicit IV      2405
--------   The Use of HMAC-SHA-1-96 within ESP and AH             2404
--------   The Use of HMAC-MD5-96 within ESP and AH               2403
IP-AUTH    IP Authentication Header                               2402
IPSEC      Security Architecture for the Internet Protocol        2401
DATA-URL   The "data" URL scheme                                  2397
IPCOMP     IP Payload Compression Protocol (IPComp)               2393
CIDMID-URL Content-ID and Message-ID Uniform Resource Locators    2392
FTP-FNEGO  Feature negotiation mechanism for the File Transfer    2389
--------   Returning Values from Forms                            2388
MIME-RELAT The MIME Multipart/Related Content-type                2387
--------   Protection of BGP Sessions via the TCP MD5 Signature   2385
POP-URL    POP URL Scheme                                         2384
--------   Interoperation of Controlled-Load Service and          2381
              Guaranteed Service with ATM
--------   RSVP over ATM Implementation Requirements              2380
--------   An IPv6 Aggregatable Global Unicast Address Format     2374
--------   IP Version 6 Addressing Architecture                   2373
TIPV3      Transaction Internet Protocol Version 3.0              2371
OSPF-LSA   The OSPF Opaque LSA Option                             2370
--------   The Use of URLs as Meta-Syntax for Core Mail List      2369
              Commands and their Transport through Message
              Header Fields
URLMAILTO  The mailto URL scheme                                  2368
PPP-AAL    PPP Over AAL5                                          2364
PPP-FUNI   PPP Over FUNI                                          2363
IMAP4UIDPL IMAP4 UIDPLUS extension                                2359
MOBILIPREV Reverse Tunneling for Mobile IP                        2344
IMAP4NAME  IMAP4 Namespace                                        2342
VRRP       Virtual Router Redundancy Protocol                     2338

IETF                        Standards Track                    [Page 16]

RFC 2600                   Internet Standards                 March 2000

NHRP-SCSP  A Distributed NHRP Service Using SCSP                  2335
SCSP       Server Cache Synchronization Protocol (SCSP)           2334
--------   NHRP Protocol Applicability Statement                  2333
NHRP       NBMA Next Hop Resolution Protocol (NHRP)               2332
UNI-SIG    ATM Signalling Support for IP over ATM - UNI           2331
              Signalling 4.0 Update
SDP        Session Description Protocol                           2327
RTSP       Real Time Streaming Protocol (RTSP)                    2326
IPOA-MIB   Definitions of Managed Objects for Classical IP        2320
              and ARP Over ATM Using SMIv2 (IPOA-MIB)
DNS-NCACHE Negative Caching of DNS Queries (DNS NCACHE)           2308
SMFAX-IM   A Simple Mode of Facsimile Using Internet Mail         2305
MINFAX-IM  Minimal FAX address format in Internet Mail            2304
MIN-PSTN   Minimal PSTN address format in Internet Mail           2303
TIFF       Tag Image File Format (TIFF) - image/tiff MIME         2302
              Sub-type Registration
FFIF       File Format for Internet Fax                           2301
EMF-MDN    An Extensible Message Format for Message Disposition   2298
OR-ADD     Representing the O/R Address hierarchy in the X.500    2294
              Directory Information Tree
SUBTABLE   Representing Tables and Subtrees in the X.500          2293
--------   Mobile-IPv4 Configuration Option for PPP IPCP          2290
SLM-APP    Definitions of System-Level Managed Objects for        2287
PPP-EAP    PPP Extensible Authentication Protocol (EAP)           2284
MEXT-BGP4  Multiprotocol Extensions for BGP-4                     2283
--------   Definitions of Managed Objects for IEEE 802.12         2266
              Repeater Devices
--------   A Summary of the X.500(96) User Schema for use         2256
              with LDAPv3
LDAP-URL   The LDAP URL Format                                    2255
STR-LDAP   The String Representation of LDAP Search Filters       2254
LDAP3-UTF8 Lightweight Directory Access Protocol (v3)             2253
LDAP3-ATD  Lightweight Directory Access Protocol (v3)             2252
LDAPV3     Lightweight Directory Access Protocol (v3)             2251
RTP-MPEG   RTP Payload Format for MPEG1/MPEG2 Video               2250
MAIL-MIB   Mail Monitoring MIB                                    2249
NSM-MIB    Network Services Monitoring MIB                        2248
---------  Using Domains in LDAP/X.500 Distinguished Names        2247
TLS        The TLS Protocol Version 1.0                           2246*
SASL-ANON  Anonymous SASL Mechanism                               2245
ACAP       ACAP -- Application Configuration Access Protocol      2244
OTP-ER     OTP Extended Responses                                 2243
NETWAREIP  NetWare/IP Domain Name and Information                 2242
DHCP-NDS   DHCP Options for Novell Directory Services             2241

IETF                        Standards Track                    [Page 17]

RFC 2600                   Internet Standards                 March 2000

HPR-MIB    Definitions of Managed Objects for HPR using SMIv2     2238
IGMP       Internet Group Management Protocol, Version 2          2236
ABNF       Augmented BNF for Syntax Specifications                2234
INTERGRMIB The Interfaces Group MIB using SMIv2                   2233
DLUR-MIB   Definitions of Managed Objects for DLUR using SMIv2    2232
MIME-EXT   MIME Parameter Value and Encoded Word Extensions       2231
FTPSECEXT  FTP Security Extensions                                2228
---------  Simple Hit-Metering and Usage-Limiting for HTTP        2227
---------  IP Broadcast over ATM Networks                         2226
IP-ATM     Classical IP and ARP over ATM                          2225*
SASL       Simple Authentication and Security Layer (SASL)        2222
IMAP4LOGIN IMAP4 Login Referrals                                  2221
---------  A Common Schema for the Internet White Pages Service   2218
---------  General Characterization Parameters for Integrated     2215
              Service Network Elements
---------  Integrated Services Management Information Base        2214
              Guaranteed Service Extensions using SMIv2
---------  Integrated Services Management Information Base        2213
              using SMIv2
GQOS       Specification of Guaranteed Quality of Service         2212
---------  Specification of the Controlled-Load Network Element   2211
RSVP-IS    The Use of RSVP with IETF Integrated Services          2210
RSVP-IPSEC RSVP Extensions for IPSEC Data Flows                   2207
RSVP-MIB   RSVP Management Information Base using SMIv2           2206
RSVP       Resource ReSerVation Protocol (RSVP) -- Version        2205
              1 Functional Specification
RPCSEC-GSS RPCSEC_GSS Protocol Specification                      2203
RTP-RAD    RTP Payload for Redundant Audio Data                   2198
IMAPPOPAU  IMAP/POP AUTHorize Extension for Simple                2195
IMAP4MAIL  IMAP4 Mailbox Referrals                                2193
IMAP-URL   IMAP URL Scheme                                        2192
---------  RTP Payload Format for H.263 Video Streams             2190
---------  Communicating Presentation Information in Internet     2183
DNS-CLAR   Clarifications to the DNS Specification                2181
IMAP4-IDLE IMAP4 IDLE command                                     2177
SLP        Service Location Protocol                              2165
---------  Use of an X.500/LDAP directory to support MIXER        2164
              address mapping
DNS-MCGAM  Using the Internet DNS to Distribute MIXER Conformant  2163
              Global Address Mapping (MCGAM)
---------  Carrying PostScript in X.400 and MIME                  2160
---------  A MIME Body Part for FAX                               2159
---------  X.400 Image Body Parts                                 2158
---------  Mapping between X.400 and RFC-822/MIME Message Bodies  2157
MIXER      MIXER (Mime Internet X.400 Enhanced Relay)             2156

IETF                        Standards Track                    [Page 18]

RFC 2600                   Internet Standards                 March 2000

MAIL-SERV  Mailbox Names for Common Services, Roles and Functions 2142
URN-SYNTAX URN Syntax                                             2141
RADIUS     Remote Authentication Dial In User Service (RADIUS)    2138
SDNSDU     Secure Domain Name System Dynamic Update               2137
DNS-UPDATE Dynamic Updates in the Domain Name System (DNS UPDATE) 2136
DC-MIB     Dial Control Management Information Base using SMIv2   2128
ISDN-MIB   ISDN Management Information Base using SMIv2           2127
ITOT       ISO Transport Service on top of TCP (ITOT)             2126
BAP-BACP   The PPP Bandwidth Allocation Protocol (BAP) / The      2125
              PPP Bandwidth Allocation Control Protocol (BACP)
VEMMI-URL  VEMMI URL Specification                                2122
ROUT-ALERT IP Router Alert Option                                 2113
HTTP-STATE HTTP State Management Mechanism                        2109
802.3-MIB  Definitions of Managed Objects for IEEE 802.3 Repeater 2108
              Devices using SMIv2
PPP-NBFCP  The PPP NetBIOS Frames Control Protocol (NBFCP)        2097
TABLE-MIB  IP Forwarding Table MIB                                2096
RIP-TRIG   Triggered Extensions to RIP to Support Demand Circuits 2091
IMAP4-LIT  IMAP4 non-synchronizing literals                       2088
IMAP4-QUO  IMAP4 QUOTA extension                                  2087
IMAP4-ACL  IMAP4 ACL extension                                    2086
HMAC-MD5   HMAC-MD5 IP Authentication with Replay Prevention      2085
RIP2-MD5   RIP-2 MD5 Authentication                               2082
RIPNG-IPV6 RIPng for IPv6                                         2080
URI-ATT    Definition of an X.500 Attribute Type and an Object    2079
              Class to Hold Uniform Resource Identifiers (URIs)
MIME-MODEL The Model Primary Content Type for Multipurpose        2077
              Internet Mail Extensions
RMON-MIB   Remote Network Monitoring MIB Protocol Identifiers     2074
HTML-INT   Internationalization of the Hypertext Markup Language  2070
IMAP-OS    Internet Message Access Protocol - Obsolete Syntax     2062
IMAPV4     Internet Message Access Protocol - Version 4rev1       2060
URLZ39.50  Uniform Resource Locators for Z39.50                   2056
SNANAU-APP Definitions of Managed Objects for APPC using SMIv2    2051*
PPP-SNACP  The PPP SNA Control Protocol (SNACP)                   2043
SMTP-ENH   SMTP Service Extension for Returning Enhanced Error    2034
RTP-H.261  RTP Payload Format for H.261 Video Streams             2032
RTP-CELLB  RTP Payload Format of Sun's CellB Video Encoding       2029
SPKM       The Simple Public-Key GSS-API Mechanism (SPKM)         2025
DLSW-MIB   Definitions of Managed Objects for Data Link Switching 2024
              using SMIv2
MULTI-UNI  Support for Multicast over UNI 3.0/3.1 based ATM       2022
RMON-MIB   Remote Network Monitoring Management Information       2021
              Base Version 2 using SMIv2
802.12-MIB IEEE 802.12 Interface MIB                              2020
TCP-ACK    TCP Selective Acknowledgement Options                  2018

IETF                        Standards Track                    [Page 19]

RFC 2600                   Internet Standards                 March 2000

URL-ACC    Definition of the URL MIME External-Body Access-Type   2017
MIME-PGP   MIME Security with Pretty Good Privacy (PGP)           2015
MIB-UDP    SNMPv2 Management Information Base for the User        2013
              Datagram Protocol using SMIv2
MIB-TCP    SNMPv2 Management Information Base for the             2012
              Transmission Control Protocol using SMIv2
MIB-IP     SNMPv2 Management Information Base for the Internet    2011
              Protocol using SMIv2
MOBILEIPMI The Definitions of Managed Objects for IP Mobility     2006
              Support using SMIv2
--------   Applicability Statement for IP Mobility Support        2005
MINI-IP    Minimal Encapsulation within IP                        2004
IPENCAPIP  IP Encapsulation within IP                             2003
MOBILEIPSU IP Mobility Support                                    2002
BGP-COMM   BGP Communities Attribute                              1997
DNS-NOTIFY A Mechanism for Prompt Notification of Zone Changes    1996
              (DNS NOTIFY)
DNS-IZT    Incremental Zone Transfer in DNS                       1995
SMTP-ETRN  SMTP Service Extension for Remote Message Queue        1985
SNA        Serial Number Arithmetic                               1982
MTU-IPV6   Path MTU Discovery for IP version 6                    1981
PPP-FRAME  PPP in Frame Relay                                     1973
PPP-ECP    The PPP Encryption Control Protocol (ECP)              1968
GSSAPI-KER The Kerberos Version 5 GSS-API Mechanism               1964
PPP-CCP    The PPP Compression Control Protocol (CCP)             1962
GSSAPI-SOC GSS-API Authentication Method for SOCKS Version 5      1961
TRANS-IPV6 Transition Mechanisms for IPv6 Hosts and Routers       1933
AUTH-SOCKS Username/Password Authentication for SOCKS V5          1929
SOCKSV5    SOCKS Protocol Version 5                               1928
--------   How to Interact with a Whois++ Mesh                    1914
--------   Architecture of the Whois++ Index Service              1913
DSN        An Extensible Message Format for Delivery Status       1894
EMS-CODE   Enhanced Mail System Status Codes                      1893
MIME-RPT   The Multipart/Report Content Type for the Reporting    1892
              of Mail System Administrative Messages
SMTP-DSN   SMTP Service Extension for Delivery Status             1891
RTP-AV     RTP Profile for Audio and Video Conferences with       1890
              Minimal Control
RTP        Real-time Transport Protocol                           1889
DNS-IPV6   DNS Extensions to support IP version 6                 1886
HTML       Hypertext Markup Language - 2.0                        1866
MIME-Sec   MIME Object Security Services                          1848
MIME-Encyp Security Multiparts for MIME                           1847
WHOIS++    Architecture of the WHOIS++ service                    1835
--------   Binding Protocols for ONC RPC Version 2                1833

IETF                        Standards Track                    [Page 20]

RFC 2600                   Internet Standards                 March 2000

RPC        RPC                                                    1831
--------   The ESP DES-CBC Transform                              1829
--------   IP Authentication using Keyed MD5                      1828
--------   Requirements for IP Version 4 Routers                  1812
URL        Relative Uniform Resource Locators                     1808
CLDAP      Connection-less Lightweight X.500 Directory Access     1798
OSPF-DC    Extending OSPF to Support Demand Circuits              1793
OSI-DIR    Using the OSI Directory to Achieve User Friendly       1781
MIME-EDI   MIME Encapsulation of EDI Objects                      1767
LANG-TAG   Tags for the Identification of Languages               1766
XNSCP      The PPP XNS IDP Control Protocol (XNSCP)               1764
BVCP       The PPP Banyan Vines Control Protocol (BVCP)           1763
Print-MIB  Printer MIB                                            1759
ATM-SIG    ATM Signaling Support for IP over ATM                  1755
IPNG       The Recommendation for the IP Next Generation Protocol 1752
802.5-SSR  IEEE 802.5 Station Source Routing MIB using SMIv2      1749
SDLCSMIv2  Definitions of Managed Objects for SNA Data Link       1747
              Control (SDLC) using SMIv2
BGP4/IDRP  BGP4/IDRP for IP---OSPF Interaction                    1745
AT-MIB     AppleTalk Management Information Base II               1742
MACMIME    MIME Encapsulation of Macintosh Files - MacMIME        1740
URL        Uniform Resource Locators (URL)                        1738
POP3-AUTH  POP3 AUTHentication command                            1734
IMAP4-AUTH IMAP4 Authentication Mechanisms                        1731
RDBMS-MIB  Relational Database Management System (RDBMS)          1697
              Management Information Base (MIB) using SMIv2
MODEM-MIB  Modem Management Information Base (MIB) using SMIv2    1696
TMUX       Transport Multiplexing Protocol (TMux)                 1692
SNANAU-MIB Definitions of Managed Objects for SNA NAUs using      1666
PPP-TRANS  PPP Reliable Transmission                              1663
--------   Postmaster Convention for X.400 Operations             1648
PPP-BCP    PPP Bridging Control Protocol (BCP)                    1638
PPP-ISDN   PPP over ISDN                                          1618
DNS-R-MIB  DNS Resolver MIB Extensions                            1612
DNS-S-MIB  DNS Server MIB Extensions                              1611
FR-MIB     Definitions of Managed Objects for Frame Relay Service 1604
PPP-X25    PPP in X.25                                            1598
OSPF-NSSA  The OSPF NSSA Option                                   1587
OSPF-Multi Multicast Extensions to OSPF                           1584
RIP-DC     Extensions to RIP to Support Demand Circuits           1582
TOPT-ENVIR Telnet Environment Option                              1572
PPP-LCP    PPP LCP Extensions                                     1570
CIPX       Compressing IPX Headers Over WAN Media (CIPX)          1553
IPXCP      The PPP Internetworking Packet Exchange Control        1552
              Protocol (IPXCP)

IETF                        Standards Track                    [Page 21]

RFC 2600                   Internet Standards                 March 2000

SRB-MIB    Definitions of Managed Objects for Source Routing      1525
CIDR-STRA  Classless Inter-Domain Routing (CIDR)                  1519
CIDR-ARCH  An Architecture for IP Address Allocation with CIDR    1518
--------   Applicability Statement for the Implementation of      1517
           Classless Inter-Domain Routing (CIDR)
--------   Definitions of Managed Objects for IEEE 802.3 Medium   1515
              Attachment Units (MAUs)
HOST-MIB   Host Resources MIB                                     1514
--------   Token Ring Extensions to the Remote Network Monitoring 1513
FDDI-MIB   FDDI Management Information Base                       1512
KERBEROS   The Kerberos Network Authentication Service (V5)       1510
--------   X.400 Use of Extended Character Sets                   1502
HARPOON    Rules for downgrading messages from X.400/88 to        1496
              X.400/84 when MIME content-types are present
              in the messages
--------   Equivalences between 1988 X.400 and RFC-822 Message    1494
IDPR       Inter-Domain Policy Routing Protocol Specification     1479
IDPR-ARCH  An Architecture for Inter-Domain Policy Routing        1478
PPP/Bridge The Definitions of Managed Objects for the Bridge      1474
              Network Control Protocol of the Point-to-Point Protocol
PPP/IPMIB  The Definitions of Managed Objects for the IP Network  1473
              Control Protocol of the Point-to-Point Protocol
PPP/SECMIB The Definitions of Managed Objects for the Security    1472
              Protocols of the Point-to-Point Protocol
PPP/LCPMIB The Definitions of Managed Objects for the Link        1471
              Control Protocol of the Point-to-Point Protocol
IP-TR-MC   IP Multicast over Token-Ring Local Area Networks       1469*
X25-MIB    SNMP MIB extension for Multiprotocol Interconnect      1461
              over X.25
SNMPv2     Introduction to version 2 of the Internet-standard     1441
              Network Management Framework
PEM-KEY    Privacy Enhancement for Internet Electronic Mail       1424
PEM-ALG    Privacy Enhancement for Internet Electronic Mail       1423
PEM-CKM    Privacy Enhancement for Internet Electronic Mail       1422
PEM-ENC    Privacy Enhancement for Internet Electronic Mail       1421
SNMP-IPX   SNMP over IPX                                          1420
SNMP-AT    SNMP over AppleTalk                                    1419
SNMP-OSI   SNMP over OSI                                          1418
FTP-FTAM   FTP-FTAM Gateway Specification                         1415
IDENT-MIB  Identification MIB                                     1414
IDENT      Identification Protocol                                1413
BGP-OSPF   BGP OSPF Interaction                                   1403
---------  Default Route Advertisement In BGP2 and BGP3 Version   1397
              of The Border Gateway Protocol
SNMP-X.25  SNMP MIB Extension for the X.25 Packet Layer           1382

IETF                        Standards Track                    [Page 22]

RFC 2600                   Internet Standards                 March 2000

SNMP-LAPB  SNMP MIB Extension for X.25 LAPB                       1381
PPP-ATCP   The PPP AppleTalk Control Protocol (ATCP)              1378
PPP-OSINLC The PPP OSI Network Layer Control Protocol (OSINLCP)   1377
---------  IP and ARP on HIPPI                                    1374
TOPT-RFC   Telnet Remote Flow Control Option                      1372
--------   Applicability Statement for OSPF                       1370
TOS        Type of Service in the Internet Protocol Suite         1349
PPP-IPCP   The PPP Internet Protocol Control Protocol (IPCP)      1332
--------   X.400 1988 to 1984 downgrading                         1328
TCP-EXT    TCP Extensions for High Performance                    1323
NETFAX     A File Format for the Exchange of Images in the        1314
FDDI-MIB   FDDI Management Information Base                       1285
--------   Encoding Network Addresses to Support Operation        1277
              over Non-OSI Lower Layers
--------   Replication and Distributed Operations extensions      1276
              to provide an Internet Directory using X.500
--------   The COSINE and Internet X.500 Schema                   1274
BGP-MIB    Definitions of Managed Objects for the Border Gateway  1269
ICMP-ROUT  ICMP Router Discovery Messages                         1256
STD-MIBs   Reassignment of experimental MIBs to standard MIBs     1239
IPX-IP     Tunneling IPX traffic through IP networks              1234
IS-IS      Use of OSI IS-IS for routing in TCP/IP and dual        1195
IP-CMPRS   Compressing TCP/IP headers for low-speed serial links  1144
TOPT-XDL   Telnet X display location option                       1096
TOPT-TERM  Telnet terminal-type option                            1091
TOPT-TS    Telnet terminal speed option                           1079
TOPT-NAWS  Telnet window size option                              1073
TOPT-X.3   Telnet X.3 PAD option                                  1053
TOPT-DATA  Telnet Data Entry Terminal option                      1043*
TOPT-3270  Telnet 3270 regime option                              1041
NNTP       Network News Transfer Protocol                          977
TOPT-TLN   Telnet terminal location number option                  946
TOPT-OM    Output marking Telnet option                            933
TOPT-TACAC TACACS user identification Telnet option                927
TOPT-EOR   Telnet end of record option                             885
TOPT-SNDL  Telnet send-location option                             779
TOPT-SUPO  Telnet SUPDUP-Output option                             749
TOPT-SUP   Telnet SUPDUP option                                    736
TOPT-BYTE  Revised Telnet byte macro option                        735
TOPT-LOGO  Telnet logout option                                    727
TOPT-REM   Remote Controlled Transmission and Echoing Telnet Opt   726
TOPT-EXT   Telnet extended ASCII option                            698

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

IETF                        Standards Track                    [Page 23]

RFC 2600                   Internet Standards                 March 2000

2.5.  Experimental Protocols

Mnemonic   Title                                                  RFC#
--------   Diffie-Helman USM Key Management Information Base and  2786*
              Textual Convention
--------   An HTTP Extension Framework                            2774*
--------   Encryption using KEA and SKIPJACK                      2773*
--------   GLOP Addressing in 233/8                               2770*
--------   Sampling of the Group Membership in RTP                2762*
--------   Definitions of Managed Objects for Service Level       2758*
              Agreements Performance Monitoring
HTTP       Hyper Text Caching Protocol (HTCP/0.0)                 2756*
--------   RTFM                                                   2724*
--------   PPP EAP TLS Authentication Protocol                    2716*
SPKI       SPKI Certificate Theory                                2693*
SKPI       SPKI Requirements                                      2692*
--------   QoS Routing Mechanisms and OSPF Extensions             2676*
--------   The Secure HyperText Transfer Protocol                 2660*
--------   Security Extensions For HTML                           2659*
--------   LDAPv2 Client vs. the Index Mesh                       2657*
--------   Registration Procedures for SOIF Template Types        2656*
--------   CIP Index Object Format for SOIF Objects               2655*
CIP        A Tagged Index Object for use in the Common Indexing   2654*
--------   An LDAP Control and Schema for Holding Operation       2649*
--------   Script MIB Extensibility Protocol Version 1.0          2593*
--------   The NewReno Modification to TCP's Fast Recovery        2582
--------   Mapping between LPD and IPP Protocols                  2569
IPP-RAT    Rationale for the Structure of the Model and Protocol  2568
              for the Internet Printing Protocol
IPP-DG     Design Goals for an Internet Printing Protocol         2567
IPP-M-S    Internet Printing Protocol/1.0                         2566
IPP-E-T    Internet Printing Protocol/1.0                         2565
DNS-INFO   Detached Domain Name System (DNS) Information          2540
PHOTURIS-E  Photuris                                              2523
PHOTURIS-S Photuris                                               2522
ICMP-SEC   ICMP Security Failures Messages                        2521
NHRP-MNHCS NHRP with Mobile NHCs                                  2520
IPPM-MET   IPPM Metrics for Measuring Connectivity                2498
--------   URI Resolution Services Necessary for URN Resolution   2483
ECN-IP     A Proposal to add Explicit Congestion Notification     2481
              (ECN) to IP
--------   IPv6 Testing Address Allocation                        2471
--------   A Distributed MARS Service Using SCSP                  2443*

IETF                        Standards Track                    [Page 24]

RFC 2600                   Internet Standards                 March 2000

TCP-WIN    Increasing TCP's Initial Window                        2414
PIM-SM     Protocol Independent Multicast-Sparse Mode (PIM-SM)    2362
--------   Domain Names and Company Name Retrieval                2345
RTP-MPEG   RTP Payload Format for Bundled MPEG                    2343
--------   Intra-LIS IP multicast among routers over ATM using    2337
              Sparse Mode PIM
--------   The Safe Response Header Field                         2310
LDAP-NIS   An Approach for Using LDAP as a Network Information    2307
HTTP-RVSA  HTTP Remote Variant Selection Algorithm -- RVSA/1.0    2296
TCN-HTTP   Transparent Content Negotiation in HTTP                2295
TOPT-COMPO Telnet Com Port Control Option                         2217
--------   Core Based Trees (CBT) Multicast Routing Architecture  2201
--------   Core Based Trees (CBT version 2) Multicast Routing     2189
--------   A Trivial Convention for using HTTP in URN Resolution  2169
--------   Resolution of Uniform Resource Identifiers using       2168
              the Domain Name System
MAP-MAIL   MaXIM-11 - Mapping between X.400 / Internet mail       2162
              and  Mail-11 mail
MIME-ODA   A MIME Body Part for ODA                               2161
OSPF-DIG   OSPF with Digital Signatures                           2154
IP-SCSI    Encapsulating IP with the Small Computer System        2143
X.500-NAME Managing the X.500 Root Naming Context                 2120
GKMP-ARCH  Group Key Management Protocol (GKMP) Architecture      2094
GKMP-SPEC  Group Key Management Protocol (GKMP) Specification     2093
TFTP-MULTI TFTP Multicast Option                                  2090
IP-Echo    IP Echo Host Service                                   2075
TOPT-CHARS TELNET CHARSET Option                                  2066
METER-MIB  Traffic Flow Measurement                               2064
TFM-ARCH   Traffic Flow Measurement                               2063
DNS-SRV    A DNS RR for specifying the location of services       2052
              (DNS SRV)
URAS       Uniform Resource Agents (URAs)                         2016
GPS-AR     GPS-Based Addressing and Routing                       2009
ETFTP      Experiments with a Simple File Transfer Protocol       1986
              for Radio Links using Enhanced Trivial File
              Transfer Protocol (ETFTP)
BGP-RR     BGP Route Reflection An alternative to full mesh IBGP  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   An Administrative Infrastructure for SNMPv2            1909
SNMPV2CB   Introduction to Community-based SNMPv2                 1901
--------   IPv6 Testing Address Allocation                        1897
--------   OSI NSAPs and IPv6                                     1888*

IETF                        Standards Track                    [Page 25]

RFC 2600                   Internet Standards                 March 2000

DNS-LOC    A Means for Expressing Location Information in         1876
              the Domain Name System
SGML-MT    SGML Media Types                                       1874
CONT-MT    Message/External-Body Content-ID Access Type           1873
UNARP      ARP Extension - UNARP                                  1868
--------   Form-based File Upload in HTML                         1867
--------   A BGP/IDRP Route Server alternative to a full mesh     1863
--------   IP Authentication using Keyed SHA                      1852
ESP3DES    The ESP Triple DES Transform                           1851
--------   SMTP 521 Reply Code                                    1846
--------   SMTP Service Extension for Checkpoint/Restart          1845
--------   Representing the O/R Address hierarchy in the X.500    1836
              Directory Information Tree
--------   SMTP Service Extensions for Transmission of Large      1830
              and Binary MIME Messages
ST2        Internet Stream Protocol Version 2 (ST2) Protocol       1819
              Specification - Version ST2+
--------   Communicating Presentation Information in Internet     1806
--------   Schema Publishing in X.500 Directory                   1804
--------   MHS use of the X.500 Directory to support 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 Protocol - Version 1.0                    1756
NARP       NBMA Address Resolution Protocol (NARP)                1735
DNS-ENCODE DNS Encoding of Geographical Location                  1712
TCP-POS    An Extension to TCP                                    1693
T/TCP      T/TCP -- TCP Extensions for Transactions Functional    1644
MIME-UNI   Using Unicode with MIME                                1641
FOOBAR     FTP Operation Over Big Address Records (FOOBAR)        1639
X500-CHART Charting Networks in the X.500 Directory               1609
X500-DIR   Representing IP Information in the X.500 Directory     1608
SNMP-DPI   Simple Network Management Protocol Distributed         1592
              Protocol Interface Version 2.0
CLNP-TUBA  Use of ISO CLNP in TUBA Environments                   1561
REM-PRINT  Principles of Operation for the TPC.INT Subdomain      1528
DASS       DASS - Distributed Authentication Security Service     1507*
EHF-MAIL   Encoding Header Field for Internet Messages            1505
RAP        RAP                                                    1476
TP/IX      TP/IX                                                  1475

IETF                        Standards Track                    [Page 26]

RFC 2600                   Internet Standards                 March 2000

X400       Routing Coordination for X.400 MHS Services Within     1465
              a Multi Protocol / Multi Network Environment
              Table Format V3 for Static Routing
DNS        Using the Domain Name System To Store Arbitrary        1464
              String Attributes
IRCP       Internet Relay Chat Protocol                           1459
TOS-LS     Physical Link Security Type of Service                 1455
SIFT/UFT   SIFT/UFT                                               1440
DIR-ARP    Directed ARP                                           1433
TOPT-AUTH  Telnet Authentication Option                           1416
TEL-SPX    Telnet Authentication                                  1412
TEL-KER    Telnet Authentication                                  1411
TRACE-IP   Traceroute Using an IP Option                          1393
DNS-IP     An Experiment in DNS Based IP Routing                  1383
RMCP       Remote Mail Checking Protocol                          1339
MSP2       Message Send Protocol 2                                1312
DSLCP      Dynamically Switched Link Control Protocol             1307
--------   X.500 and Domains                                      1279
IN-ENCAP   Scheme for an internet encapsulation protocol          1241
CLNS-MIB   CLNS MIB for use with Connectionless Network Protocol  1238
              (ISO 8473) and End System to Intermediate
              System (ISO 9542)
CFDP       Coherent File Distribution Protocol                    1235
IP-AX.25   Internet protocol encapsulation of AX.25 frames        1226
ALERTS     Techniques for managing asynchronously generated       1224
MPP        Message Posting Protocol (MPP)                         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    Network Time Protocol (NTP) over the OSI Remote        1165
              Operations Service
--------   Message Send Protocol                                  1159*
DMF-MAIL   Digest message format                                  1153
RDP        Version 2 of the Reliable Data Protocol (RDP)          1151
TCP-ACO    TCP alternate checksum options                         1146
--------   The Q Method of Implementing TELNET Option Negotiation 1143*
IP-DVMRP   Distance Vector Multicast Routing Protocol             1075
VMTP       VMTP                                                   1045
COOKIE-JAR Distributed-protocol authentication scheme             1004
NETBLT     NETBLT                                                  998
IRTP       Internet Reliable Transaction Protocol functional       938
              and interface specification

IETF                        Standards Track                    [Page 27]

RFC 2600                   Internet Standards                 March 2000

LDP        Loader Debugger Protocol                                909
RDP        Reliable Data Protocol                                  908
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.]

2.6.  Historic Protocols

Mnemonic   Title                                                  RFC#
L2F        Cisco Layer Two Forwarding (Protocol) "L2F"            2341
IPV6-UNI   An IPv6 Provider-Based Unicast Address Format          2073
--------   RIPv1 Applicability Statement for Historic Status      1923
IPV6-Addr  IP Version 6 Addressing Architecture                   1884
SNMPv2     Manager-to-Manager Management Information Base         1451
SNMPv2     Party MIB for version 2 of the Simple Network          1447
              Management Protocol (SNMPv2)
SNMPv2     Security Protocols for version 2 of the Simple         1446
              Network Management Protocol (SNMPv2)
SNMPv2     Administrative Model for version 2 of the Simple       1445
              Network Management Protocol (SNMPv2)
TOPT-ENVIR Telnet Environment Option                              1408
SNMP-PARTY Definitions of Managed Objects for Administration      1353*
              of SNMP Parties
SNMP-SEC   SNMP Security Protocols                                1352*
SNMP-ADMIN SNMP Administrative Model                              1351*
BGP3       Application of the Border Gateway Protocol in the      1268
BGP3       Border Gateway Protocol 3 (BGP-3)                      1267
OSI-UDP    OSI connectionless transport services on top of UDP    1240*
802.4-MIP  IEEE 802.4 Token Bus MIB                               1230
SNMP-MUX   SNMP MUX protocol and MIB                              1227
OIM-MIB-II OSI internet management                                1214
IMAP3      Interactive Mail Access Protocol                       1203
CMOT       Common Management Information Services and Protocols   1189
              for the Internet (CMOT and CMIP)
BGP        Application of the Border Gateway Protocol in the      1164
BGP        Border Gateway Protocol (BGP)                          1163
MIB-I      Management Information Base for network management     1156
              of TCP/IP-based internets
--------   Mapping between full RFC 822 and RFC 822 with          1137
              restricted encoding
--------   Privacy enhancement for Internet electronic mail       1115

IETF                        Standards Track                    [Page 28]

RFC 2600                   Internet Standards                 March 2000

--------   Privacy enhancement for Internet electronic mail       1114
--------   Privacy enhancement for Internet electronic mail       1113
IPSO       U.S. Department of Defense Security Options for        1108
              the Internet Protocol
RIP        Routing Information Protocol                 (STD34)   1058
SUN-RPC    RPC                                                    1050
CONTENT    Content-type header field for Internet messages        1049
NFILE      NFILE - a file access protocol                         1037
SGMP       Simple Gateway Monitoring Protocol                     1028
HEMS       High-level Entity Management System (HEMS)             1021
--------   Requirements for Internet gateways             (STD4)  1009
STATSRV    Statistics server                                       996
HOSTNAME   Hostname Server                                         953
POP2       Post Office Protocol                                    937
HFEP       Proposed Host-Front End Protocol                        929
RATP       Reliable Asynchronous Transfer Protocol                 916
THINWIRE   Thinwire protocol for connecting personal computers     914
              to the Internet
SFTP       Simple File Transfer Protocol                           913
EGP        Exterior Gateway Protocol formal specification (STD18)  904
HMP        Host Monitoring Protocol                                869
GGP        DARPA Internet gateway                                  823
RTELNET    Remote User Telnet service                              818
CLOCK      DCNET Internet Clock Service                            778
MPM        Internet Message Protocol                               759
NETRJS     NETRJS Protocol                                         740
SUPDUP     SUPDUP Protocol                                         734
TOPT-OLD   Telnet output linefeed disposition                      658
TOPT-OVTD  Telnet output vertical tab disposition option           657
TOPT-OVT   Telnet output vertical tabstops option                  656
TOPT-OFD   Telnet output formfeed disposition option               655
TOPT-OHTD  Telnet output horizontal tab disposition option         654
TOPT-OHT   Telnet output horizontal tabstops option                653
TOPT-OCRD  Telnet output carriage-return disposition option        652
NETED      NETED                                                   569
RJE        Remote Job Entry Protocol                               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.]

IETF                        Standards Track                    [Page 29]

RFC 2600                   Internet Standards                 March 2000

3.  Security Coniderations

   This memo does not affect the technical security of the Internet, but
   it does cite a number of important security specifications.

4.  Editors' Addresses

   Joyce K. Reynolds
   USC/Information Sciences Institute
   4676 Admiralty Way
   Marina del Rey, CA 90292

   Phone: +1 310-822-1511
   Fax:   +1 310-823-6714
   EMail: JKRey@ISI.EDU

   Robert Braden
   USC/Information Sciences Institute
   4676 Admiralty Way
   Marina del Rey, CA 90292

   Phone: +1 310-822-1511
   Fax:   +1 310-823-6714
   EMail: Braden@ISI.EDU

IETF                        Standards Track                    [Page 30]

RFC 2600                   Internet Standards                 March 2000

5.  Full Copyright Statement

   Copyright (C) The Internet Society (2000).  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

   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


   Funding for the RFC Editor function is currently provided by the
   Internet Society.

IETF                        Standards Track                    [Page 31]