





Network Working Group                    Internet Engineering Task Force
Request for Comments: 2500                                   J. Reynolds
Obsoletes: 2400, 2300, 2200, 2000, 1920, 1880,                 R. Braden
1800, 1780, 1720, 1610, 1600, 1540, 1500, 1410,                  Editors
1360, 1280, 1250, 1200, 1140, 1130, 1100, 1083                 June 1999
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 (1999).  All Rights Reserved.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Current Technical Specifications . . . . . . . . . . . . .   4
   2.1.  Standard Protocols . . . . . . . . . . . . . . . . . . .   5
   2.2.  Network-Specific Standard Protocols  . . . . . . . . . .   6
   2.3.  Draft Standard Protocols . . . . . . . . . . . . . . . .   7
   2.4.  Proposed Standard Protocols  . . . . . . . . . . . . . .   9
   2.5.  Experimental Protocols . . . . . . . . . . . . . . . . .  18
   3.  Current Applicability Statements . . . . . . . . . . . . .  21
   4.  Non-Standard Protocols . . . . . . . . . . . . . . . . . .  22
   4.1.  Informational Protocol . . . . . . . . . . . . . . . . .  22
   4.2.  Historic Protocols . . . . . . . . . . . . . . . . . . .  24
   5.  Contacts . . . . . . . . . . . . . . . . . . . . . . . . .  25
   5.1.  IAB, IETF, and IRTF Contacts . . . . . . . . . . . . . .  25
   5.2.  Internet Assigned Numbers Authority (IANA) Contact . . .  25
   5.3.  Request for Comments Editor Contact  . . . . . . . . . .  26
   5.4.  Requests for Comments Distribution Contact . . . . . . .  26
   5.5.  Sources for Requests for Comments  . . . . . . . . . . .  26
   6.  Security Considerations  . . . . . . . . . . . . . . . . .  26
   7.  Editors' Addresses . . . . . . . . . . . . . . . . . . . .  27
   Full Copyright Statement . . . . . . . . . . . . . . . . . . .  28






IETF                        Standards Track                     [Page 1]

RFC 2500                   Internet Standards                  June 1999


1. Introduction

   This memo summarizes the status of Internet protocols and
   specifications.  It 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
   stnadards are set.  This memo is prepared by the RFC Editor for the
   IESG and IAB.  It is a member of a series of summary memos that are
   published approximately every one hundred RFCs; please see
   www.rfc-editor.org.

   This memo lists the level and status of the archival documents known
   as RFCs (Request for Comments) within the Internet standards process.
   The reader is urged to review RFC 2026 for essential context for
   interpreting this memo.

   The following introductory text is quoted directly from RFC 2026:

      "The Internet, a loosely-organized international collaboration of
      autonomous, interconnected networks, supports host-to-host
      communication through voluntary adherence to open protocols and
      procedures defined by Internet Standards.  There are also many
      isolated interconnected networks, which are not connected to the
      global Internet but use the Internet Standards.

      The Internet Standards Process described in this document is
      concerned with all protocols, procedures, and conventions that are
      used in or by the Internet, whether or not they are part of the
      TCP/IP protocol suite.  In the case of protocols developed and/or
      standardized by non-Internet organizations, however, the Internet
      Standards Process normally applies to the application of the
      protocol or procedure in the Internet context, not to the
      specification of the protocol itself.

      In general, an Internet Standard is a specification that is stable
      and well-understood, is technically competent, has multiple,
      independent, and interoperable implementations with substantial
      operational experience, enjoys significant public support, and is
      recognizably useful in some or all parts of the Internet.

      Each distinct version of an Internet standards-related
      specification is published as part of the "Request for Comments"
      (RFC) document series.  This archival series is the official
      publication channel for Internet standards documents and other
      publications of the IESG, IAB, and Internet community.  RFCs can
      be obtained from a number of Internet hosts using anonymous FTP,
      gopher, World Wide Web, and other Internet document-retrieval
      systems.



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RFC 2500                   Internet Standards                  June 1999


      The rules for formatting and submitting an RFC are defined in [5].
      Every RFC is available in ASCII text.  Some RFCs are also
      available in other formats.  The other versions of an RFC may
      contain material (such as diagrams and figures) that is not
      present in the ASCII version, and it may be formatted differently.

            *********************************************************
            *                                                       *
            *  A stricter requirement applies to standards-track    *
            *  specifications:  the ASCII text version is the       *
            *  definitive reference, and therefore it must be a     *
            *  complete and accurate specification of the standard, *
            *  including all necessary diagrams and illustrations.  *
            *                                                       *
            *********************************************************

      The status of Internet protocol and service specifications is
      summarized periodically in an RFC entitled "Internet Official
      Protocol Standards" [1].  This RFC shows the level of maturity and
      other helpful information for each Internet protocol or service
      specification (see section 3).

      Specifications subject to the Internet Standards Process fall into
      one of two categories:  Technical Specification (TS) and
      Applicability Statement (AS).

      Some RFCs document Internet Standards.  These RFCs form the "STD"
      subseries of the RFC series [4].  When a specification has been
      adopted as an Internet Standard, it is given the additional label
      "STDxxx", but it keeps its RFC number and its place in the RFC
      series.  (see section 4.1.3)

      Some RFCs standardize the results of community deliberations about
      statements of principle or conclusions about what is the best way
      to perform some operations or IETF process function.  These RFCs
      form the specification has been adopted as a BCP, it is given the
      additional label "BCPxxx", but it keeps its RFC number and its
      place in the RFC series. (see section 5)

      Not all specifications of protocols or services for the Internet
      should or will become Internet Standards or BCPs.  Such non-
      standards track specifications are not subject to the rules for
      Internet standardization.  Non-standards track specifications may
      be published directly as "Experimental" or "Informational" RFCs at
      the discretion of the RFC Editor in consultation with the IESG
      (see section 4.2)."





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RFC 2500                   Internet Standards                  June 1999


   Section 2 of this memo lists all Technical Specification RFCs that
   are in the standards track, and Section 3 lists Applicability
   Statement RFCs in the standards track.  Section 4 lists those
   protocol specification RFCs that are off the standards track
   (Informational and Historic status).  This memo does not list
   Informational RFCs that may be of general interest to the community
   but do not specify protocols for the Internet.  It also does not list
   BCP RFCs.  Telnet options have been added into the lists.

2. Current Technical Specifications

   Subsections 2.1-2.5 list the standards in groups by protocol state.
   In the following lists, shorthand nicknames have been shown for many
   of the major protocols.  These names are commonly used in discourse
   on Internet mailing lists.




































IETF                        Standards Track                     [Page 4]

RFC 2500                   Internet Standards                  June 1999


2.1.  Standard Protocols

Protocol   Name                                                RFC STD *
========   =====================================              ==== === =
--------   Internet Official Protocol Standards               2500   1
--------   Assigned Numbers                                   1700   2
IP         Internet Protocol                                   791   5
            as amended by:--------
--------     IP Subnet Extension                               950   5
--------     IP Broadcast Datagrams                            919   5
--------     IP Broadcast Datagrams with Subnets               922   5
ICMP       Internet Control Message Protocol                   792   5
IGMP       Internet Group Multicast Protocol                  1112   5
UDP        User Datagram Protocol                              768   6
TCP        Transmission Control Protocol                       793   7
TELNET     Telnet Protocol                                 854,855   8
FTP        File Transfer Protocol                              959   9
SMTP       Simple Mail Transfer Protocol                       821  10
SMTP-SIZE  SMTP Service Ext for Message Size                  1870  10
SMTP-EXT   SMTP Service Extensions                            1869  10
MAIL       Format of Electronic Mail Messages                  822  11
NTPV2      Network Time Protocol (Version 2)                  1119  12
DOMAIN     Domain Name System                            1034,1035  13
DNS-MX     Mail Routing and the Domain System                  974  14
SNMP       Simple Network Management Protocol                 1157  15
SMI        Structure of Management Information                1155  16
Concise-MIB Concise MIB Definitions                           1212  16
MIB-II     Management Information Base-II                     1213  17
NETBIOS    NetBIOS Service Protocols                     1001,1002  19
ECHO       Echo Protocol                                       862  20
DISCARD    Discard Protocol                                    863  21
CHARGEN    Character Generator Protocol                        864  22
QUOTE      Quote of the Day Protocol                           865  23
USERS      Active Users Protocol                               866  24
DAYTIME    Daytime Protocol                                    867  25
TIME       Time Server Protocol                                868  26
TOPT-BIN   Binary Transmission                                 856  27
TOPT-ECHO  Echo                                                857  28
TOPT-SUPP  Suppress Go Ahead                                   858  29
TOPT-STAT  Status                                              859  30
TOPT-TIM   Timing Mark                                         860  31
TOPT-EXTOP Extended-Options-List                               861  32
TFTP       Trivial File Transfer Protocol                     1350  33
TP-TCP     ISO Transport Service on top of the TCP            1006  35
ETHER-MIB  Ethernet MIB                                       1643  50
PPP        Point-to-Point Protocol (PPP)                      1661  51
PPP-HDLC   PPP in HDLC Framing                                1662  51
IP-SMDS    IP Datagrams over the SMDS Service                 1209  52



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RFC 2500                   Internet Standards                  June 1999


POP3       Post Office Protocol, Version 3                    1939  53
OSPF2      Open Shortest Path First Routing V2                2328  54
IP-FR      Multiprotocol over Frame Relay                     2427  55*
RIP2       RIP Version 2-Carrying Additional Info.            2453  56*
RIP2-APP   RIP Version 2 Protocol App. Statement              1722  57*
SMIv2      Structure of Management Information v2             2578  58*
CONV-MIB   Textual Conventions for SNMPv2                     2579  58*
CONF-MIB   Conformance Statements for SNMPv2                  2580  58*

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

2.2.  Network-Specific Standard Protocols

Protocol   Name                                            RFC   STD *
========   =====================================          =====  === =
IP-ATM     Classical IP and ARP over ATM                   2225
ATM-ENCAP  Multiprotocol Encapsulation over ATM            1483
IP-TR-MC   IP Multicast over Token-Ring LANs               1469
IP-FDDI    Transmission of IP and ARP over FDDI Net        1390    36
IP-X.25    X.25 and ISDN in the Packet Mode                1356
ARP        Address Resolution Protocol                      826    37
RARP       A Reverse Address Resolution Protocol            903    38
IP-ARPA    Internet Protocol on ARPANET                 BBN1822    39
IP-WB      Internet Protocol on Wideband Network            907    40
IP-E       Internet Protocol on Ethernet Networks           894    41
IP-EE      Internet Protocol on Exp. Ethernet Nets          895    42
IP-IEEE    Internet Protocol on IEEE 802                   1042    43
IP-DC      Internet Protocol on DC Networks                 891    44
IP-HC      Internet Protocol on Hyperchannel               1044    45
IP-ARC     Transmitting IP Traffic over ARCNET Nets        1201    46
IP-SLIP    Transmission of IP over Serial Lines            1055    47
IP-NETBIOS Transmission of IP over NETBIOS                 1088    48
IP-IPX     Transmission of 802.2 over IPX Networks         1132    49
IP-HIPPI   IP over HIPPI                                   2067

[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 2500                   Internet Standards                  June 1999


2.3.  Draft Standard Protocols

Protocol   Name                                                     RFC
========   =====================================                   =====
VACM-SNMP  View-based Access Control Model for SMMP                2575*
USM-SNMPV3 User-based Security Model for SNMPv3                    2574*
SNMP-APP   SNMP Applications                                       2573*
MPD-SNMP   Message Processing & Dispatching SNMP                   2572*
ARCH-SNMP  Architecture Describing SNMP Management Frameworks      2571*
ICMPv6     ICMPv6 for IPv6                                         2463*
IPV6-AUTO  IPv6 Stateless Address Autoconfiguation                 2462*
IPV6-ND    Neighbor Discovery for IP Version 6                     2461*
IPV6       IPv6 Specification                                      2460*
URI-GEN    URI: Generic Syntax                                     2396
IARP       Inverse Address Resolution Protocol                     2390
TN3270E    Telnet Option - TN3270 Enhancements                     2355*
TFTP-Opt   TFTP Options                                            2349
TFTP-Blk   TFTP Blocksize Option                                   2348
TFTP-Ext   TFTP Option Extension                                   2347
ONE-PASS   One-Time Password System                                2289
SMTP-Pipe  SMTP Serv. Ext. for Command Pipelining                  2197
DHCP-BOOTP DHCP Options and BOOTP Extensions                       2132
DHCP       Dynamic Host Configuration Protocol                     2131
FRAME-MIB  Management Information Base for Frame                   2115
-------    Clarifications and Extensions BOOTP                     1542
DHCP-BOOTP Interoperation Between DHCP and BOOTP                   1534
BOOTP      Bootstrap Protocol                                  951,2132
MIME-CONF  MIME Conformance Criteria                               2049
MIME-MSG   MIME Msg Header Ext for Non-ASCII                       2047
MIME-MEDIA MIME Media Types                                        2046
MIME       Multipurpose Internet Mail Extensions                   2045
PPP-CHAP   PPP Challenge Handshake Authentication                  1994
PPP-MP     PPP Multilink Protocol                                  1990
PPP-LINK   PPP Link Quality Monitoring                             1989
COEX-MIB   Coexistence between SNMPV1 & SNMPV2                     1908
SNMPv2-MIB MIB for SNMPv2                                          1907
TRANS-MIB  Transport Mappings for SNMPv2                           1906
OPS-MIB    Protocol Operations for SNMPv2                          1905
CON-MD5    Content-MD5 Header Field                                1864
OSPF-MIB   OSPF Version 2 MIB                                      1850
STR-REP    String Representation ...                               1779
X.500syn   X.500 String Representation ...                         1778
X.500lite  X.500 Lightweight ...                                   1777
BGP-4-APP  Application of BGP-4                                    1772
BGP-4      Border Gateway Protocol 4                               1771
PPP-DNCP   PPP DECnet Phase IV Control Protocol                    1762
RMON-MIB   Remote Network Monitoring MIB                           1757
802.5-MIB  IEEE 802.5 Token Ring MIB                               1748



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RFC 2500                   Internet Standards                  June 1999


RIP2-MIB   RIP Version 2 MIB Extension                             1724
SIP-MIB    SIP Interface Type MIB                                  1694
-------    Def Man Objs Parallel-printer-like                      1660
-------    Def Man Objs RS-232-like                                1659
-------    Def Man Objs Character Stream                           1658
BGP-4-MIB  BGP-4 MIB                                               1657
SMTP-8BIT  SMTP Service Ext or 8bit-MIMEtransport                  1652
OSI-NSAP   Guidelines for OSI NSAP Allocation                      1629
ISO-TS-ECHO Echo for ISO-8473                                      1575
DECNET-MIB DECNET MIB                                              1559
BRIDGE-MIB BRIDGE-MIB                                              1493
NTPV3      Network Time Protocol (Version 3)                       1305
FINGER     Finger Protocol                                         1288
IP-MTU     Path MTU Discovery                                      1191
TOPT-LINE  Linemode                                                1184
NICNAME    WhoIs Protocol                                           954

[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 2500                   Internet Standards                  June 1999


2.4.  Proposed Standard Protocols

Protocol   Name                                                     RFC
========   =====================================                   =====
--------   PKIX Operational Protocols: FTP and HTTP                2585*
--------   APPN/HPR in IP Networks MIB                             2584*
TCP-CC     TCP Congestion Control                                  2581*
APP-MIB    Application Management MIB                              2564*
--------   DHCP Auto-Configuration Option                          2563*
--------   TN3270E-RT-MIB                                          2562*
--------   TN3270E Using SMIv2 MIB                                 2561*
--------   Internet X.509 Public Key Infra. Op. Proto. LDAPv2      2559*
--------   SONET/SDH Interface Type MIB                            2558*
MHTML      MIME Encap. of Aggregate Documents, such as HTML        2557*
--------   SMTP Service Extension for Authentication               2554*
--------   Use of BGP-4 Multipro. Ext. for IPv6 IDR                2545*
SIP        Session Initiation Protocol                             2543*
DHK-DNS    Storage of Diffie-Hellman Keys in DNS                   2539*
SC-DNS     Storing Certificates in the DNS                         2538*
--------   RSA/MD5 KEYs and SIGs in the DNS                        2537*
--------   DSA KEYs and SIGs in the DNS                            2536*
DNS-SECEXT Domain Name System Security Extensions                  2535*
--------   Media Features for Display, Print, Fax                  2534*
--------   Transmission of IPv6 Packets over IPv4                  2529*
--------   Reserved IPv6 Subnet Anycast Addresses                  2526*
WEBDAV     HTTP Ext. for Distributed Authoring                     2518*
ATM-MIBMAN MIB for ATM Management                                  2515*
ATM-TC-OID ATM Textual Conventions and OIDs                        2514*
--------   Connection-Oriented Accounting MIB                      2513*
--------   Accounting Information for ATM Networks                 2512*
X.509-CRMF Internet X.509 CRMF                                     2511*
PKICMP     Internet X.509 PKI CMP                                  2510*
IPCOM-PPP  IP Header Compression over PPP                          2509*
--------   Compressing IP/UDP/RTP Headers                          2508*
--------   IP Header Compression                                   2507*
--------   IPv6 Datagrams on ARCnet                                2497*
DS3-E3-MIB DS3/E3 Interface Type MIB                               2496*
--------   DS1/E1/DS2/E2 MIB                                       2495*
--------   DSO MIB / DSOBUNDLE MIB                                 2494*
--------   15 Minute Based Performance History TCs                 2493*
IPv6ATMNET IPv6 over ATM Networks                                  2492*
IPv6-NBMA  IPv6 over Non-Broadcast Multiple Access                 2491*
--------   SMTP Serv. Ext. for Secure SMTP over TLS                2487*
NAI        Network Access Identifier                               2486*
--------   DCHP Option for the Open Group's UAP                    2485*
--------   PPP LCP Internationalization Option                     2484*
--------   Gateways and MIME Security Multiparts                   2480*
--------   GSS-API Negotiation Mechanism                           2478*



IETF                        Standards Track                     [Page 9]

RFC 2500                   Internet Standards                  June 1999


--------   Message Submission                                      2476*
DIFFSRV    Architecture for Differentiated Service                 2475*
--------   Differentiated Services Field                           2474*
--------   Generic Packet Tunneling in IPv6                        2473*
IPv6-PPP   IP Version 6 over PPP                                   2472*
--------   IPv6 Packets over Token Ring Networks                   2470*
--------   IPv6 Packets over FDDI Networks                         2467*
ICMPv6-MIB ICMPv6 Group MIB                                        2466*
--------   Textual Conventions, General Group MIB                  2465*
--------   IPv6 Packets over Ethernet Networks                     2464*
--------   Internet X.509 Public Key Infrastructure                2459*
EBN-MIB    Extended Border Node MIB                                2457*
--------   APPN TRAPS MIB                                          2456*
APPN-MIB   APPN MIB                                                2455*
--------   UDP MIB for IPv6                                        2454*
--------   TCP MIB for IPv6                                        2452*
--------   ESP CBC-Mode Cipher Algorithms                          2451*
POP3-EXT   POP3 Extension Mechanism                                2449*
IMIP       iCalendar Message-Based Interoperability                2447*
ITIP       iCalendar Message-Based Interoperability                2446*
ICALENDAR  Internet Calendaring, Scheduling Core..                 2445*
OTP-SASL   OTP 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 H.263+                           2429*
--------   FTP Extensions for IPv6 and NATs                        2428
MIME-VCARD vCard MIME Directory Profile                            2426
TXT-DIR    MIME Content-Type for Directory Info                    2425
CONT-DUR   Content-Duration MIME Header                            2424
MIME-VPIM  VPIM Voice Message                                      2423
MIME-ADPCM Toll Quality Voice - 32 kbit/s ADPC                     2422
MIME-VP2   Voice Profile for Internet Mail V2                      2421
--------   Multicast/UNI 3.0/3.1 based ATM MIB                     2417
--------   NULL Encryption Algorithm and Its Use With IPsec        2410*
IKE        The Internet Key Exchange                               2409*
ISAKMP     Internet Security Association and Key Management Pro.   2408*
ISAKMPSEC  IP Security Domain of Interpretation for ISAKMP         2407*
ESP        IP Encapsulating Security Payload                       2406*
ESPDES-CBC ESP DES-CBC Cipher Algorithm With Explicit IV           2405*
--------   Use of HMAC-SHA-1-96 within ESP and AH                  2404*
--------   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   "data" URL scheme                                       2397
CIDMID-URL Content-ID and Message-ID URLs                          2392
IPCOMP     IP Payload Compression Protocol                         2393*



IETF                        Standards Track                    [Page 10]

RFC 2500                   Internet Standards                  June 1999


FTP-FNEGO  Feature negotiation mechanism for FTP                   2389
--------   MIME Multipart/form-data                                2388
MIME-RELAT MIME Multipart/Related Content-type                     2387
--------   Protection of BGP Sessions via TCP MD5                  2385
POP-URL    POP URL Scheme                                          2384
--------   Interoperation of CLS and GS with ATM                   2381
--------   RSVP over ATM Imple. Requirements                       2380
--------   IPv6 Aggreg. Global Unicast Addr. Format                2374
--------   IPv6 Addressing Architecture                            2373
TIPV3      Transaction Internet Protocol V3                        2371
OSPF-LSA   OSPF Opaque LSA Option                                  2370
--------   Use of URLs as Meta-Syntax...                           2369
URLMAILTO  mailto URL scheme                                       2368
PPP-AAL    PPP Over AAL                                            2364
PPP-FUNI   PPP Over FUNI                                           2363
IMAP4UIDPL IMAP4 UIDPLUS Extension                                 2359
--------   Ethernet-like Interface Types MIB                       2358
MOBILIPREV Reverse Tunneling for Mobile IP                         2344
IMAP4NAME  IMAP4 Namespace                                         2342
VRRP       Virtual Router Redundancy Protocol                      2338
NHRP-SCSP  Distributed NHRP Service Using SCSP                     2335
SCSP       Server Cache Synchronization Protocol                   2334
NHRP       NBMA Next Hop Resolution Protocol                       2332
UNI-SIG    ATM Sig Support (IPOA) UNI Signalling                   2331
SDP        Session Description Protocol                            2327
RTSP       Real Time Streaming Protocol                            2326
IPOA-MIB   Classical IP and ARP Over ATM MIB                       2320
DNS-NCACHE Negative Caching of DNS Queries                         2308
SMFAX-IM   Simple Mode of FAX Using Internet Mail                  2305
MINFAX-IM  Minimal FAX addr format in Internet Mail                2304
MIN-PSTN   Min. PSTN addr format in Internet Mail                  2303
TIFF       Tag Image File Format                                   2302
FFIF       File Format for Internet Fax                            2301
EMF-MDN    Extensible Message Format for MDN                       2298
OR-ADD     O/R Address hierarchy in X.500                          2294
SUBTABLE   Tables and Subtrees in X.500                            2293
--------   Mobile-IPv4 Config Opt for PPP IPCP                     2290
SLM-APP    System-Level Managed Objects for Apps                   2287
PPP-EAP    PPP Extensible Authentication Protocol                  2284
MEXT-BGP4  Multiprotocol Extensions for BGP-4                      2283
RPSL       Routing Policy Specification Language                   2280
UTF-8      UTF-8 transformation format of ISO 10646                2279
--------   IEEE 802.12 Repeater MIB                                2266
AGENTX     Agent Extensibility Protocol                            2257
--------   Summary of the X.500(96) with LDAPv3                    2256
LDAP-URL   LDAP URL Format                                         2255
STR-LDAP   String Rep of LDAP Search Filters                       2254
LDAP3-UTF8 LDAPv3: UTF-8 String Rep                                2253



IETF                        Standards Track                    [Page 11]

RFC 2500                   Internet Standards                  June 1999


LDAP3-ATD  LDAP3-: Attribute Syntax Definitions                    2252
LDAPV3     Lightweight Directory Access Protocol                   2251
RTP-MPEG   RTP Payload Format for MPEG1/MPEG2                      2250
MAIL-MIB   Mail Monitoring MIB                                     2249
NSM-MIB    Network Services Monitoring MIB                         2248
--------   Using Domains LDAP/X.500 Dist. Names                    2247
SASL-ANON  Anonymous SASL Mechanism                                2245
ACAP       Application Configuration Access                        2244
OTP-ER     OTP Extended Responses                                  2243
NETWAREIP  NetWare/IP Domain Name and Information                  2242
DHCP-NDS   DHCP Options for Novell Directory Serv.                 2241
MAUS-MIB   IEEE 802.3 Medium Attachment Units MIB                  2239
HPR-MIB    Definitions of Managed Objects for HPR                  2238
IGMP       Internet Group Management Protocol V2                   2236
ABNF       Augmented BNF for Syntax Specifications                 2234
INTERGRMIB Interfaces Group MIB                                    2233
DLUR-MIB   Definitions of Managed Objects for DLUR                 2232
MIME-EXT   MIME Parameter Value & Encoded Word Ext                 2231
FTPSECEXT  FTP Security Extensions                                 2228
---------  Simple Hit-Metering, Usage-Limiting HTTP                2227
---------  IP Broadcast over ATM Networks                          2226
SASL       Simple Authentication and Security Layer                2222
IMAP4LOGIN IMAP4 Login Referrals                                   2221
---------  Schema for Internet White Pages Service                 2218
---------  Characterization Parameters for ISNE                    2215
---------  Integrated Services MIB Guar Serv Ext                   2214
---------  Integrated Services MIB using SMIv2                     2213
GQOS       Spec. of Guaranteed Quality of Service                  2212
---------  Spec. of Controlled-Load Net Ele Serv                   2211
RSVP-IS    Use of RSVP with IETF Integrated Serv                   2210
RSVP-MPR   RSVP Messaging Processing Rules                         2209
RSVP-IPSEC RSVP Extensions for IPSEC Data Flows                    2207
RSVP-MIB   RSVP Management Information Base                        2206
RSVP       Resource ReSerVation Protocol V1                        2205
RPCSEC-GSS RPCSEC_GSS Protocol Specification                       2203
RTP-RAD    RTP Payload for Redundant Audio Data                    2198
IMAPPOPAU  IMAP/POP AUTHorize Extension                            2195
IMAP4MAIL  IMAP4 Mailbox Referrals                                 2193
IMAP-URL   IMAP URL Scheme                                         2192
---------  RTP Payload Format for H.263 Video ST                   2190
---------  The Content-Disposition Header Field                    2183
DNS-CLAR   Clarifications to the DNS Specification                 2181
IMAP4-IDLE IMAP4 IDLE command                                      2177
SLP        Service Location Protocol                               2165
---------  X.500/LDAP Directory/MIXER Address Map.                 2164
DNS-MCGAM  Using DNS to Distribute MCGAM                           2163
---------  Carrying PostScript in X.400 and MIME                   2160
---------  A MIME Body Part for FAX                                2159



IETF                        Standards Track                    [Page 12]

RFC 2500                   Internet Standards                  June 1999


---------  X.400 Image Body Parts                                  2158
---------  Mapping between X.400 and RFC-822/MIME                  2157
MIXER      Mime Internet X.400 Enhanced Relay                      2156
APPN-MIB   Definitions of Managed Objects for APPN                 2155
IPv6-Jumbo TCP and UDP over IPv6 Jumbograms                        2147
MAIL-SERV  Mailbox Names for Common Services                       2142
URN-SYNTAX URN Syntax                                              2141
RADIUS     Remote Authentication Dial In Service                   2138
SDNSDU     Secure Domain Name System Dynamic Update                2137
DNS-UPDATE Dynamic Updates in the DNS                              2136
DC-MIB     Dial Control MIB using SMIv2                            2128
ISDN-MIB   ISDN MIB using SMIv2                                    2127
ITOT       ISO Transport Service on top of TCP                     2126
BAP-BACP   PPP-BAP, PPP-BACP                                       2125
VEMMI-URL  VEMMI URL Specification                                 2122
ROUT-ALERT IP Router Alert Option                                  2113
MHTML      MIME E-mail Encapsulation                               2110
HTTP-STATE HTTP State Management Mechanism                         2109
802.3-MIB  802.3 Repeater MIB using SMIv2                          2108
PPP-NBFCP  PPP NetBIOS Frames Control Protocol                     2097
TABLE-MIB  IP Forwarding Table MIB                                 2096
RIP-TRIG   Trigger RIP                                             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 Auth. with Replay Prevention                2085
RIP2-MD5   RIP-2 MD5 Authentication                                2082
RIPNG-IPV6 RIPng for IPv6                                          2080
URI-ATT    URI Attribute Type and Object Class                     2079
GSSAP      Generic Security Service Application                    2078
MIME-MODEL Model Primary MIME Types                                2077
RMON-MIB   Remote Network Monitoring MIB                           2074
HTML-INT   HTML Internationalization                               2070
DAA        Digest Access Authentication                            2069
HTTP-1.1   Hypertext Transfer Protocol -- HTTP/1.1                 2068
DNS-SEC    Domain Name System Security Extensions                  2065
IMAPV4     Internet Message Access Protocol v4rev1                 2060
URLZ39.50  Uniform Resource Locators for Z39.50                    2056
SNANAU-APP SNANAU APPC MIB using SMIv2                             2051
PPP-SNACP  PPP SNA Control Protocol                                2043
ENTITY-MIB Entity MIB using SMIv2                                  2037
RTP-JPEG   RTP Payload Format for JPEG-compressed                  2035
SMTP-ENH   SMTP Enhanced Error Codes                               2034
RTP-H.261  RTP Payload Format for H.261                            2032
RTP-CELLB  RTP Payload Format of Sun's CellB                       2029
SPKM       Simple Public-Key GSS-API Mechanism                     2025
DLSW-MIB   DLSw MIB using SMIv2                                    2024
IPV6-PPP   IP Version 6 over PPP                                   2023



IETF                        Standards Track                    [Page 13]

RFC 2500                   Internet Standards                  June 1999


MULTI-UNI  Multicast over UNI 3.0/3.1 based ATM                    2022
RMON-MIB   RMON MIB using SMIv2                                    2021
802.12-MIB IEEE 802.12 Interface MIB                               2020
IPV6-FDDI  Transmission of IPv6 Packets Over FDDI                  2019
TCP-ACK    TCP Selective Acknowledgement Options                   2018
URL-ACC    URL Access-Type                                         2017
MIME-PGP   MIME Security with PGP                                  2015
MIB-UDP    SNMPv2 MIB for UDP                                      2013
MIB-TCP    SNMPv2 MIB for TCP                                      2012
MIB-IP     SNMPv2 MIB for IP                                       2011
MOBILEIPMIBMobile IP MIB Definition using SMIv2                    2006
MINI-IP    Minimal Encapsulation within IP                         2004
IPENCAPIP  IP Encapsulation within IP                              2003
MOBILEIPSUPIP Mobility Support                                     2002
TCPSLOWSRT TCP Slow Start, Congestion Avoidance...                 2001
BGP-COMM   BGP Communities Attribute                               1997
DNS-NOTIFY Mech. for Notification of Zone Changes                  1996
DNS-IZT    Incremental Zone Transfer in DNS                        1995
SMTP-ETRN  SMTP Service Extension ETRN                             1985
SNA        Serial Number Arithmetic                                1982
MTU-IPV6   Path MTU Discovery for IP version 6                     1981
PPP-FRAME  PPP in Frame Relay                                      1973
IPV6-ETHER Transmission IPv6 Packets Over Ethernet                 1972
PPP-ECP    PPP Encryption Control Protocol                         1968
GSSAPI-KER Kerberos Version 5 GSS-API Mechanism                    1964
PPP-CCP    PPP Compression Control Protocol                        1962
GSSAPI-SOC GSS-API Auth for SOCKS Version 5                        1961
LDAP-STR   String Rep. of LDAP Search Filters                      1960
LDAP-URL   LDAP URL Format                                         1959
TRANS-IPV6 Transition Mechanisms IPv6 Hosts/Routers                1933
AUTH-SOCKS Username Authentication for SOCKS V5                    1929
SOCKSV5    SOCKS Protocol Version 5                                1928
WHOIS++M   How to Interact with a Whois++ Mesh                     1914
WHOIS++A   Architecture of Whois++ Index Service                   1913
DSN        Delivery Status Notifications                           1894
EMS-CODE   Enhanced Mail System Status Codes                       1893
MIME-RPT   Multipart/Report                                        1892
SMTP-DSN   SMTP Delivery Status Notifications                      1891
RTP-AV     RTP Audio/Video Profile                                 1890
RTP        Transport Protocol for Real-Time Apps                   1889
DNS-IPV6   DNS Extensions to support IPv6                          1886
HTML       Hypertext Markup Language - 2.0                         1866
MIME-Sec   MIME Object Security Services                           1848
MIME-Encyp MIME: Signed and Encrypted                              1847
WHOIS++    Architecture of the WHOIS++ service                     1835
--------   Binding Protocols for ONC RPC Version 2                 1833
XDR        External Data Representation Standard                   1832
RPC        Remote Procedure Call Protocol V. 2                     1831



IETF                        Standards Track                    [Page 14]

RFC 2500                   Internet Standards                  June 1999


--------   ESP DES-CBC Transform                                   1829
--------   IP Authentication using Keyed MD5                       1828
ESP        IP Encapsulating Security Payload                       1827
IPV6-AH    IP Authentication Header                                1826
--------   Security Architecture for IP                            1825
R          Requirements for IP Version 4 Routers                   1812
URL        Relative Uniform Resource Locators                      1808
CLDAP      Connection-less LDAP                                    1798
OSPF-DC    Ext. OSPF to Support Demand Circuits                    1793
OSI-Dir    OSI User Friendly Naming ...                            1781
MIME-EDI   MIME Encapsulation of EDI Objects                       1767
Lang-Tag   Tags for Identification of Languages                    1766
XNSCP      PPP XNS IDP Control Protocol                            1764
BVCP       PPP Banyan Vines Control Protocol                       1763
Print-MIB  Printer MIB                                             1759
ATM-SIG    ATM Signaling Support for IP over ATM                   1755
IPNG       Recommendation for IP Next Generation                   1752
802.5-SSR  802.5 SSR MIB using SMIv2                               1749
SDLCSMIv2  SNADLC SDLC MIB using SMIv2                             1747
BGP4/IDRP  BGP4/IDRP for IP/OSPF Interaction                       1745
AT-MIB     Appletalk MIB                                           1742
MacMIME    MIME Encapsulation of Macintosh files                   1740
URL        Uniform Resource Locators                               1738
POP3-AUTH  POP3 AUTHentication command                             1734
IMAP4-AUTH IMAP4 Authentication Mechanisms                         1731
RDBMS-MIB  RDMS MIB - using SMIv2                                  1697
MODEM-MIB  Modem MIB - using SMIv2                                 1696
ATM-MIB    ATM Management Version 8.0 using SMIv2                  1695
TMUX       Transport Multiplexing Protocol                         1692
SNANAU-MIB SNA NAUs MIB using SMIv2                                1666
PPP-TRANS  PPP Reliable Transmission                               1663
--------   Postmaster Convention X.400 Operations                  1648
PPP-BCP    PPP Bridging Control Protocol                           1638
UPS-MIB    UPS Management Information Base                         1628
PPP-SONET  PPP over SONET/SDH                                      1619
PPP-ISDN   PPP over ISDN                                           1618
DNS-R-MIB  DNS Resolver MIB Extensions                             1612
DNS-S-MIB  DNS Server MIB Extensions                               1611
FR-MIB     Frame Relay Service MIB                                 1604
PPP-X25    PPP in X.25                                             1598
OSPF-NSSA  The OSPF NSSA Option                                    1587
OSPF-Multi Multicast Extensions to OSPF                            1584
SONET-MIB  MIB SONET/SDH Interface Type                            1595
RIP-DC     Extensions to RIP to Support Demand Cir.                1582
--------   Evolution of the Interfaces Group of MIB-II Elective    1573
TOPT-ENVIR Telnet Environment Option                               1572
PPP-LCP    PPP LCP Extensions                                      1570
X500-MIB   X.500 Directory Monitoring MIB                          1567



IETF                        Standards Track                    [Page 15]

RFC 2500                   Internet Standards                  June 1999


CIPX       Compressing IPX Headers Over WAM Media                  1553
IPXCP      PPP Internetworking Packet Exchange Control Elective    1552
SRB-MIB    Source Routing Bridge MIB                               1525
CIDR-STRA  CIDR Address Assignment...                              1519
CIDR-ARCH  CIDR Architecture...                                    1518
--------   802.3 MAU MIB                                           1515
HOST-MIB   Host Resources MIB                                      1514
--------   Token Ring Extensions to RMON MIB                       1513
FDDI-MIB   FDDI Management Information Base                        1512
KERBEROS   Kerberos Network Authentication Ser (V5)                1510
GSSAPI     Generic Security Service API: C-bindings                1509
DASS       Distributed Authentication Security...                  1507
--------   X.400 Use of Extended Character Sets                    1502
HARPOON    Rules for Downgrading Messages...                       1496
Equiv      X.400/MIME Body Equivalences                            1494
IDPR       Inter-Domain Policy Routing Protocol                    1479
IDPR-ARCH  Architecture for IDPR                                   1478
PPP/Bridge MIB Bridge PPP MIB                                      1474
PPP/IP MIB  IP Network Control Protocol of PPP MIB                 1473
PPP/SEC MIB Security Protocols of PPP MIB                          1472
PPP/LCP MIB Link Control Protocol of PPP MIB                       1471
X25-MIB    Multiprotocol Interconnect on X.25 MIB                  1461
SNMPv2     Introduction to SNMPv2                                  1441
PEM-KEY    PEM - Key Certification                                 1424
PEM-ALG    PEM - Algorithms, Modes, and Identifiers                1423
PEM-CKM    PEM - Certificate-Based Key Management                  1422
PEM-ENC    PEM - Message Encryption and Auth                       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
DS3/E3-MIB DS3/E3 Interface Type                                   1407
DS1/E1-MIB DS1/E1 Interface Type                                   1406
BGP-OSPF   BGP OSPF Interaction                                    1403
--------   Route Advertisement In BGP2 And BGP3                    1397
SNMP-X.25  SNMP MIB Extension for X.25 Packet Layer                1382
SNMP-LAPB  SNMP MIB Extension for X.25 LAPB                        1381
PPP-ATCP   PPP AppleTalk Control Protocol                          1378
PPP-OSINLCP PPP OSI Network Layer Control Protocol                 1377
TOPT-RFC   Remote Flow Control                                     1372
SNMP-PARTY-MIB Administration of SNMP                              1353
SNMP-SEC   SNMP Security Protocols                                 1352
SNMP-ADMIN SNMP Administrative Model                               1351
TOS        Type of Service in the Internet                         1349
PPP-IPCP   PPP Control Protocol                                    1332
-------    X.400 1988 to 1984 downgrading                          1328



IETF                        Standards Track                    [Page 16]

RFC 2500                   Internet Standards                  June 1999


TCP-EXT    TCP Extensions for High Performance                     1323
NETFAX     File Format for the Exchange of Images                  1314
FDDI-MIB   FDDI-MIB                                                1285
-------    Encoding Network Addresses                              1277
-------    Replication and Distributed Operations                  1276
-------    COSINE and Internet X.500 Schema                        1274
BGP-MIB    Border Gateway Protocol MIB (Version 3)                 1269
ICMP-ROUT  ICMP Router Discovery Messages                          1256
OSI-UDP    OSI TS on UDP                                           1240
STD-MIBs   Reassignment of Exp MIBs to Std MIBs                    1239
IPX-IP     Tunneling IPX Traffic through IP Nets                   1234
IS-IS      OSI IS-IS for TCP/IP Dual Environments                  1195
IP-CMPRS   Compressing TCP/IP Headers                              1144
TOPT-XDL   X Display Location                                      1096
TOPT-TERM  Terminal Type                                           1091
TOPT-TS    Terminal Speed                                          1079
TOPT-NAWS  Negotiate About Window Size                             1073
TOPT-X.3   X.3 PAD                                                 1053
TOPT-DATA  Data Entry Terminal                                     1043
TOPT-3270  Telnet 3270 Regime                                      1041
NNTP       Network News Transfer Protocol                           977
TOPT-TLN   Terminal Location Number                                 946
TOPT-OM    Output Marking                                           933
TOPT-TACACS  TACACS User Identification                             927
TOPT-EOR   End of Record                                            885
TOPT-SNDL  Send Location                                            779
TOPT-SUPO  SUPDUP Output                                            749
TOPT-SUP   SUPDUP                                                   736
TOPT-BYTE  Byte Macro                                               735
TOPT-REM   Remote Controlled Trans and Echo                         726
TOPT-LOGO  Logout                                                   727
TOPT-EXT   Extended ASCII                                           698

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
















IETF                        Standards Track                    [Page 17]

RFC 2500                   Internet Standards                  June 1999


2.5.  Experimental Protocols

Protocol   Name                                                     RFC
========   =====================================                   =====
-------    NewReno Modification to TCP's Fast Recovery Algorithm   2582*
-------    Mapping between LPD and IPP Protocols                   2569*
IPP-RAT    Rationale for the Structure of IPP                      2568*
IPP-DG     Design Goals for an Internet Printing Protocol          2567*
IPP-M-S    Internet Printing Protocol/1.0: Model and Semantics     2566*
IPP-E-T    Internet Printing Protocol/1.0: Encoding and Transport  2565*
DNS-INFO   Detached Domain Name System (DNS) Information           2540*
PHOTURIS-E Photuris: Extended Schemes and Attributes               2523*
PHOTURIS-S Photuris: Session-Key Management Protocol               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                                 2483*
ECN-IP     Explicit Congestion Notification (ECN) to IP            2481*
-------    IPv6 Testing Address Allocation                         2471*
TCP-WIN    Increasing TCP's Initial Window                         2414
PIM-SM     Protocol Independent Multicast-Sparse Mode              2362
-------    Domain Names and Company Name Retrieva                  2345
RTP-MPEG   RTP Payload Format for Bundled MPEG                     2343
-------    Intra-LIS IP Multicast/Routers over ATM using PIM       2337
-------    Safe Response Header Field                              2310
LDAP-NIS   Approach Using LDAP as a Network Information Service    2307
HTTP-RVSA  HTTP Remote Variant Selection Algorithm                 2296
TCN-HTTP   Transparent Content Negotiation in HTTP                 2295
TOPT-COMPORT Telnet Com Port Control                               2217
-------    Core Based Trees (CBT) Multicast Routing Architecture   2201
-------    Core Based Trees (CBT version 2) Multicast Routing      2189
-------    Trivial Convention using HTTP in URN Resolution         2169
-------    Resolution of URIs using DNS                            2168
MAP-MAIL   X.400 Mapping and Mail-11                               2162
MIME-ODA   A MIME Body Part for ODA                                2161
OSPF-DIG   OSPF with Digital Signature                             2154
GKMP-ARCH  Group Key Management Protocol (GKMP) Architecture       2094
GKMP-SPEC  Group Key Management Protocol (GKMP) Specification      2093
TOPT-CHARSET Telnet CHARSET                                        2066
IP-SCSI    Encapsulating IP with the SCSI                          2143
X.500-NAME Managing the X.500 Root Naming Context                  2120
TFTP-MULTI TFTP Multicast Option                                   2090
IP-Echo    IP Echo Host Service                                    2075
METER-MIB  Traffic Flow Measurement Meter MIB                      2064
TFM-ARCH   Traffic Flow Measurement Architecture                   2063
DNS-SRV    Location of Services in the DNS                         2052
URAS       Uniform Resource Agents                                 2016
GPS-AR     GPS-Based Addressing and Routing                        2009



IETF                        Standards Track                    [Page 18]

RFC 2500                   Internet Standards                  June 1999


ETFTP      Enhanced Trivial File Transfer Protocol                 1986
BGP-RR     BGP Route Reflection                                    1966
BGP-ASC    Autonomous System Confederations for BGP                1965
SMKD       Scalable Multicast Key Distribution                     1949
HTML-TBL   HTML Tables                                             1942
SNMPV2SM   User-based Security Model for SNMPv2                    1910
SNMPV2AI   SNMPv2 Administrative Infrastructure                    1909
SNMPV2CB   Introduction to Community-based SNMPv2                  1901
-------    IPv6 Testing Address Allocation                         1897
DNS-LOC    Location Information in the DNS                         1876
SGML-MT    SGML Media Types                                        1874
CONT-MT    Access Type Content-ID                                  1873
UNARP      ARP Extension - UNARP                                   1868
-------    Form-based File Upload in HTML                          1867
-------    BGP/IDRP Route Server Alternative                       1863
-------    IP Authentication using Keyed SHA                       1852
ESP3DES    ESP Triple DES Transform                                1851
-------    SMTP 521 Reply Code                                     1846
-------    SMTP Serv. Ext. for Checkpoint/Restart                  1845
-------    SMTP Serv. Ext. Large and Binary MIME Msgs.             1830
ST2        Stream Protocol Version 2                               1819
-------    Content-Disposition Header                              1806
-------    Schema Publishing in X.500 Directory                    1804
-------    X.400-MHS use X.500 to support X.400-MHS Routing        1801
-------    Class A Subnet Experiment                               1797
TCP/IPXMIB TCP/IPX Connection Mib Specification                    1792
-------    TCP And UDP Over IPX Networks With Fixed Path MTU       1791
ICMP-DM    ICMP Domain Name Messages                               1788
CLNP-MULT  Host Group Extensions for CLNP Multicasting             1768
OSPF-OVFL  OSPF Database Overflow                                  1765
RWP        Remote Write ProtocolL - Version 1.0                    1756
NARP       NBMA Address Resolution Protocol                        1735
DNS-ENCODE DNS Encoding of Geographical Location                   1712
TCP-POS    An Extension to TCP: Partial Order Service              1693
T/TCP      TCP Extensions for Transactions                         1644
MIME-UNI   Using Unicode with MIME                                 1641
FOOBAR     FTP Operation Over Big Address Records                  1639
X500-CHART Charting Networks in the X.500 Directory                1609
X500-DIR   Representing IP Information in the X.500 Directory      1608
SNMP-DPI   SNMP Distributed Protocol Interface                     1592
CLNP-TUBA  Use of ISO CLNP in TUBA Environments                    1561
REM-PRINT  TPC.INT Subdomain Remote Printing - Technical           1528
EHF-MAIL   Encoding Header Field for Internet Messages             1505
RAP        Internet Route Access Protocol                          1476
TP/IX      TP/IX: The Next Internet                                1475
X400       Routing Coordination for X.400 Services                 1465
DNS        Storing Arbitrary Attributes in DNS                     1464
IRCP       Internet Relay Chat Protocol                            1459



IETF                        Standards Track                    [Page 19]

RFC 2500                   Internet Standards                  June 1999


TOS-LS     Link Security TOS                                       1455
SIFT/UFT   Sender-Initiated/Unsolicited File Transfer              1440
DIR-ARP    Directed ARP                                            1433
TOPT-AUTH  Telnet Authentication Option                            1416
TEL-SPX    Telnet Authentication: SPX                              1412
TEL-KER    Telnet Authentication: Kerberos V4                      1411
TRACE-IP   Traceroute Using an IP Option                           1393
DNS-IP     Experiment in DNS Based IP Routing                      1383
RMCP       Remote Mail Checking Protocol                           1339
TCP-HIPER  TCP Extensions for High Performance                     1323
MSP2       Message Send Protocol 2                                 1312
DSLCP      Dynamically Switched Link Control                       1307
--------   X.500 and Domains                                       1279
IN-ENCAP   Internet Encapsulation Protocol                         1241
CLNS-MIB   CLNS-MIB                                                1238
CFDP       Coherent File Distribution Protocol                     1235
IP-AX.25   IP Encapsulation of AX.25 Frames                        1226
ALERTS     Managing Asynchronously Generated Alerts                1224
MPP        Message Posting Protocol                                1204
SNMP-BULK  Bulk Table Retrieval with the SNMP                      1187
DNS-RR     New DNS RR Definitions                                  1183
IMAP2      Interactive Mail Access Protocol                        1176
NTP-OSI    NTP over OSI Remote Operations                          1165
DMF-MAIL   Digest Message Format for Mail                          1153
RDP        Reliable Data Protocol                              908,1151
TCP-ACO    TCP Alternate Checksum Option                           1146
IP-DVMRP   IP Distance Vector Multicast Routing                    1075
VMTP       Versatile Message Transaction Protocol                  1045
COOKIE-JAR Authentication Scheme                                   1004
NETBLT     Bulk Data Transfer Protocol                              998
IRTP       Internet Reliable Transaction Protocol                   938
LDP        Loader Debugger Protocol                                 909
RLP        Resource Location Protocol                               887
NVP-II     Network Voice Protocol                              ISI-memo
PVP        Packet Video Protocol                               ISI-memo

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













IETF                        Standards Track                    [Page 20]

RFC 2500                   Internet Standards                  June 1999


3. Current Applicability Statements

   RFC1122 - Requirements for Internet hosts - communication layers
             (STD 3)
   RFC1123 - Requirements for Internet hosts - application and support
             (STD 3)
   RFC1370 - Applicability Statement for OSPF
   RFC1517 - Applicability Statement for the Implementation of Classless
             Inter-Domain Routing (CIDR)
   RFC1722 - RIP Version 2 Protocol Applicability Statement
   RFC1923 - RIPv1 Applicability Statement for Historic Status
   RFC2005 - Applicability Statement for IP Mobility Support
   RFC2039 - Applicability of Standards Track MIBs to Management of
             World Wide Web Servers
   RFC2081 - RIPng Protocol Applicability Statement
   RFC2208 - Resource ReSerVation Protocol (RSVP) -- Version 1
             Applicability Statement - Some Guidelines on Deployment
   RFC2333 - NHRP Protocol Applicability Statement
   RFC2556 - OSI connectionless transport services on top of UDP
             Applicability Statement for Historic Status































IETF                        Standards Track                    [Page 21]

RFC 2500                   Internet Standards                  June 1999


4.  Non-Standard Protocols

4.1.  Informational Protocols

Please note that there are informational RFCs that do not specify
protocols and are not listed here.

Protocol   Name                                                     RFC
=======    ====================================                    =====
AUDIO/L16  Audio/L16 MIME content type                             2586*
FTP-SEC    FTP Security Considerations                             2577*
--------   6Bone Routing Practice                                  2546*
DNS-SOC    DNS Security Operational Considerations                 2541*
--------   Internet X.509 Public Key Infrastructure KEA            2528*
--------   Internet X.509 Public Key Infrastructure CP & CPF       2527*
--------   Known TCP Implementation Problems                       2525*
EMSD       Neda's Efficient Mail Submission and Delivery Protocol  2524*
IDRA       Framework for Inter-Domain Route Aggregation            2519*
PPPOE      Method for Transmitting PPP Over Ethernet               2516*
--------   MIME Types for Use with the ISO ILL Protocol            2503*
MANET      Mobile Ad hoc Networking Performance Issues             2501*
--------   ST2+ over ATM Protocol Spec - UNI 3.1 Version           2383
--------   Mapping Airline Reservation, Ticketing, Messaging       2351
KOI8-U     Ukrainian Character Set KOI8-U                          2319
TEXT-CSS   The text/css Media Type                                 2318
PKCS-7     PKCS #7: Cryptographic Message Syntax Version 1.5       2315
PKCS-10    PKCS #10: Certification Request Syntax Version 1.5      2314
PKCS-1     PKCS #1: RSA Encryption Version 1.5                     2313
SMIME-CERT S/MIME Version 2 Certificate Handling                   2312
SMIME-MSG  S/MIME Version 2 Message Specification                  2311
TIFF       Tag Image File Format F Profile for Facsimile           2302
GSMP       Ipsilon's General Switch Management Protocol            2297
HSRP       Cisco Hot Standby Router Protocol (HSRP)                2281
RC2-ENCRP  A Description of the RC2(r) Encryption Algorithm        2268
SNQP       Simple Nomenclator Query Protocol                       2259
--------   Japanese Character Encoding for Internet Messages       2237
KEYX-DNS   Key Exchange Delegation Record for the DNS              2230
DSP        A Dictionary Server Protocol                            2229
NFS-URL    NFS URL Scheme                                          2224
APP-MARC   The Application/MARC Content-type                       2220
ODETTE-FTP ODETTE File Transfer Protocol                           2204
ESRO       AT&T/Neda's Efficient Short Remote Operations Protocol  2188
ICP        Internet Cache Protocol Version 2                       2186
IPV4-MAPOS IPv4 over MAPOS Version 1                               2176
MAPOS-SONET Multiple Access Protocol over SONET/SDH Version 1      2171
RWHOIS     Referral Whois Protocol                                 2167
PPP-EXT    PPP Vendor Extensions                                   2153
UTF-7      UTF-7                                                   2152



IETF                        Standards Track                    [Page 22]

RFC 2500                   Internet Standards                  June 1999


CAST-128   CAST-128 Encryption Algorithm                           2144
RADIUS-ACC RADIUS Accounting                                       2139
DLSCAP     Data Link Switching Client Access Protocol              2114
PNG        Portable Network Graphics Version 1.0                   2083
RC5        RC5, RC5-CBC, RC5-CBC-Pad, and RC5-CTS Algorithms       2040
SNTP       Simple Network Time Protocol v4 for IPv4, IPv6 and OSI  2030
PGP-MEF    PGP Message Exchange Formats                            1991
PPP-DEFL   PPP Deflate Protocol                                    1979
PPP-PRED   PPP Predictor Compression Protocol                      1978
PPP-BSD    PPP BSD Compression Protocol                            1977
PPP-DCE    PPP for Data Compression in DCE                         1976
PPP-MAG    PPP Magnalink Variable Resource Compression             1975
PPP-STAC   PPP Stac LZS Compression Protocol                       1974
GZIP       GZIP File Format Specification Version 4.3              1952
DEFLATE    DEFLATE Compressed Data Format Specification V. 1.3     1951
ZLIB       ZLIB Compressed Data Format Specification V. 3.3        1950
HTTP-1.0   Hypertext Transfer Protocol -- HTTP/1.0                 1945
--------   text/enriched MIME Content-type                         1896
--------   Application/CALS-1840 Content-type                      1895
--------   PPP IPCP Extensions for Name Server Addresses           1877
SNPP       Simple Network Paging Protocol - Version 2              1861
--------   ISO Transport Class 2 Non-use Explicit Flow Control     1859
           over TCP RFC1006 extension
--------   IP in IP Tunneling                                      1853
--------   PPP Network Control Protocol for LAN Extension          1841
TESS       The Exponential Security System                         1824
NFSV3      NFS Version 3 Protocol Specification                    1813
--------   A Format for Bibliographic Records                      1807
-------    Data Link Switching: Switch-to-Switch Protocol          1795
BGP-4      Experience with the BGP-4 Protocol                      1773
SDMD       IPv4 Option for Sender Directed MD Delivery             1770
SNOOP      Snoop Version 2 Packet Capture File Format              1761
BINHEX     MIME Content Type for BinHex Encoded Files              1741
DNS-NSAP   DNS NSAP Resource Records                               1706
RADIO-PAGE TPC.INT Subdomain: Radio Paging -- Technical Procedures 1703
GRE-IPv4   Generic Routing Encapsulation over IPv4                 1702
GRE        Generic Routing Encapsulatio                            1701
ADSNA-IP   Advanced SNA/IP: A Simple SNA Transport Protocol        1538
TACACS     Terminal Access Control Protocol                        1492
MD4        MD4 Message Digest Algorithm                            1320
SUN-NFS    Network File System Protocol                            1094
SUN-RPC    Remote Procedure Call Protocol Version 2                1057
GOPHER     The Internet Gopher Protocol                            1436
LISTSERV   Listserv Distribute Protocol                            1429
-------    Replication Requirements                                1275
PCMAIL     Pcmail Transport Protocol                               1056
MTP        Multicast Transport Protocol                            1301
BSD Login  BSD Login                                               1282



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DIXIE      DIXIE Protocol Specification                            1249
IP-X.121   IP to X.121 Address Mapping for DDN                     1236
OSI-HYPER  OSI and LLC1 on HYPERchannel                            1223
HAP2       Host Access Protocol                                    1221
SUBNETASGN On the Assignment of Subnet Numbers                     1219
SNMP-TRAPS Defining Traps for use with SNMP                        1215
DAS        Directory Assistance Service                            1202
LPDP       Line Printer Daemon Protocol                            1179

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

4.2.  Historic Protocols

Protocol   Name                                                RFC  STD
========   =====================================              ===== ===
CONTENT    Content Type Header Field                          1049  11 *
IPV6-UNI   IPv6 Provider-Based Unicast Address                2073
IPV6-Addr  IPv6 Addressing Architecture                       1884
L2F        Cisco Layer Two Forwarding Protocol                2341
IPSO       DoD Security Options for IP                        1108
SNMPv2     Manager-to-Manager MIB                             1451
SNMPv2     Party MIB for SNMPv2                               1447
SNMPv2     Security Protocols for SNMPv2                      1446
SNMPv2     Administrative Model for SNMPv2                    1445
RIP        Routing Information Protocol                       1058  34
--------   Mapping full 822 to Restricted 822                 1137
BGP3       Border Gateway Protocol 3 (BGP-3)             1267,1268
--------   Gateway Requirements                               1009   4
EGP        Exterior Gateway Protocol                           904  18
SNMP-MUX   SNMP MUX Protocol and MIB                          1227
OIM-MIB-II OSI Internet Management: MIB-II                    1214
IMAP3      Interactive Mail Access Protocol Version 3         1203
SUN-RPC    Remote Procedure Call Protocol Version 1           1050
802.4-MIP  IEEE 802.4 Token Bus MIB                           1230
CMOT       Common Management Information Services             1189
--------   Mail Privacy: Procedures                           1113
--------   Mail Privacy: Key Management                       1114
--------   Mail Privacy: Algorithms                           1115
NFILE      A File Access Protocol                             1037
HOSTNAME   HOSTNAME Protocol                                   953
SFTP       Simple File Transfer Protocol                       913
SUPDUP     SUPDUP Protocol                                     734
BGP        Border Gateway Protocol                       1163,1164
MIB-I      MIB-I                                              1156
TOPT-ENVIR Telnet Environment Option                          1408
SGMP       Simple Gateway Monitoring Protocol                 1028
HEMS       High Level Entity Management Protocol              1021



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STATSRV    Statistics Server                                   996
POP2       Post Office Protocol, Version 2                     937
RATP       Reliable Asynchronous Transfer Protocol             916
HFEP       Host - Front End Protocol                           929
THINWIRE   Thinwire Protocol                                   914
HMP        Host Monitoring Protocol                            869
GGP        Gateway Gateway Protocol                            823
RTELNET    Remote Telnet Service                               818
CLOCK      DCNET Time Server Protocol                          778
MPM        Internet Message Protocol                           759
NETRJS     Remote Job Service                                  740
TOPT-OLD   Output Linefeed Disposition                         658
TOPT-OVTD  Output Vertical Tab Disposition                     657
TOPT-OVT   Output Vertical Tabstops                            656
TOPT-OFD   Output Formfeed Disposition                         655
TOPT-OHTD  Output Horizontal Tab Disposition                   654
TOPT-OHT   Output Horizontal Tabstops                          653
TOPT-OCRD  Output Carriage-Return Disposition                  652
NETED      Network Standard Text Editor                        569
RJE        Remote Job Entry                                    407
XNET       Cross Net Debugger                              IEN-158
NAMESERVER Host Name Server Protocol                       IEN-116
MUX        Multiplexing Protocol                            IEN-90
GRAPHICS   Graphics Protocol                             NIC-24308

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

5.  Contacts

5.1.  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

5.2.  Internet Assigned Numbers Authority Contact

      See: www.iana.org

      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".



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5.3.  Request for Comments Editor Contact

      See: www.rfc-editor.org

   Documents may be submitted via electronic mail to the RFC Editor for
   consideration for publication as RFC.  If you are not familiar with
   the format or style requirements please request the "Instructions for
   RFC Authors".  In general, the style of any recent RFC may be used as
   a guide.

5.4.  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

5.5.  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

6.  Security Considerations

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





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7.  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





























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Full Copyright Statement

   Copyright (C) The Internet Society (1999).  All Rights Reserved.

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it
   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kind, provided that the above copyright notice and this paragraph are
   included on all such copies and derivative works.  However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
   Internet organizations, except as needed for the purpose of
   developing Internet standards in which case the procedures for
   copyrights defined in the Internet Standards process must be
   followed, or as required to translate it into languages other than
   English.

   The limited permissions granted above are perpetual and will not be
   revoked by the Internet Society or its successors or assigns.

   This document and the information contained herein is provided on an
   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Acknowledgement

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



















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