Network Working Group
Request for Comments: 3700
Obsoletes: 3600
STD: 1
Category: Standards Track
Internet Engineering Task Force
J. Reynolds, Ed.
S. Ginoza, Ed.
July 2004

Internet Official Protocol Standards

Status of this Memo

This memo is an Internet Standard. Distribution of this memo is unlimited.

Copyright Notice

Copyright © The Internet Society (2004).

Abstract

This memo contains a snapshot of the state of standardization of protocols used in the Internet as of July 22, 2004. It lists official protocol standards and Best Current Practice RFCs; it is not a complete index to the RFC series. The latest version of this memo is designated STD 1.

Table of Contents

   1.  Overview . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
   2.  Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . .  2
       2.1.  Internet-Related Organizations . . . . . . . . . . . . .  2
       2.2.  Request for Comments Editor (RFC Editor) Web Pages . . .  2
       2.3   Retrieval using FTP  . . . . . . . . . . . . . . . . . .  3
       2.4   Search and Retrieval Using Email . . . . . . . . . . . .  4
   3.  Current Technical Specifications . . . . . . . . . . . . . . .  5
       3.1.  Standard Protocols Ordered by STD  . . . . . . . . . . .  5
       3.2.  Standard Protocols Ordered by RFC  . . . . . . . . . . .  8
       3.3.  Draft Standard Protocols . . . . . . . . . . . . . . . . 11
       3.4.  Proposed Standard Protocols  . . . . . . . . . . . . . . 14
       3.5.  Best Current Practice by BCP . . . . . . . . . . . . . . 40
       3.6.  Best Current Practice by RFC . . . . . . . . . . . . . . 44
       3.7.  Experimental Protocols . . . . . . . . . . . . . . . . . 48
   4.  Security Considerations  . . . . . . . . . . . . . . . . . . . 53
   5.  Editors' Addresses . . . . . . . . . . . . . . . . . . . . . . 53
   6.  Full Copyright Statement . . . . . . . . . . . . . . . . . . . 54

1. Overview

This memo contains a snapshot of the state of standardization of protocols used in the Internet, as determined by the Internet Engineering Task Force (IETF). It is a July 22, 2004 snapshot of the current official protocol standards list and the Best Current Practice list, which is updated daily and is available from the RFC Editor Web site.

The RFC Editor publishes Request for Comments (RFC) 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.

This memo is published by the RFC Editor for the IESG and IAB 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. Sections 3.1 - 3.7 of this memo contain the lists of protocols in each stage of standardization - Standard, Draft Standard, Proposed Standard, Experimental, as well as Best Current Practice documents. Protocols that are new to this document or have been moved from one protocol level to another, or that differ from the previous edition of this document are marked with an asterisk. Informational and Historic RFCs are not included. This memo lists the current standards track, Best Current Practice, and Experimental protocols; it is not a complete index to RFCs.

2. Resources

This section contains important contact information, for reference.

2.1. Internet-Related Organizations

   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
   
   Internet Assigned Numbers Authority (IANA) Contact: www.iana.org

2.2. Request for Comments Editor (RFC Editor) Web Pages

The RFC Editor maintains the official repository of all RFCs and indexes to them. The RFC Editor web site is:

http://www.rfc-editor.org.

At this URL, a user can:

(a) Obtain the current "Internet Official Protocol Standards" list.

See:

         http://www.rfc-editor.org/rfcxx00.html

This hyper-linked listing is updated daily.

(b) Retrieve the latest version of this STD 1 memo. See:

http://www.rfc-editor.org/go.html, and select STD and "1".

(c) Retrieve text of any RFC. See:

         http://www.rfc-editor.org/go.html

(d) Search for RFCs by category. See:

         http://www.rfc-editor.org/category.html
   
   (e) Search the RFC index for document number, author, title, and/or
       keywords, and retrieve the text of any matching documents.  See:
   
         http://www.rfc-editor.org/rfcsearch.html

RFC information can also be retrieved using FTP or email.

2.3. Retrieval using FTP

RFC-related files may be copied via FTP from the FTP.RFC-EDITOR.ORG computer using the FTP username "anonymous" and password "name@host.domain". An FTP user can:

(a) Retrieve the latest version of this STD 1 memo.

File:

               "in-notes/std/std1.txt"

(b) Retrieve text of any RFC.

File: "in-notes/rfcnnnn.txt" will retrieve the ASCII version. Some RFCs also have secondary Postscript and/or PDF versions, available from File: "in-notes/rfcnnnn.ps" and/or "in-notes/rfcnnnn.pdf", respectively.

Here "nnnn" is a 1-4 digit RFC number, with no leading zeros.

2.4. Search and Retrieval Using Email

To use the RFC Editor's email-based RFC-INFO service, send a request to:

      RFC-INFO@RFC-EDITOR.ORG

In the message body, include your information request. For example, the following message bodies may be used.

(a) To retrieve the latest version of this STD 1 memo:

Retrieve: STD

Doc-ID:

                    STD0001

(b) To retrieve ASCII text of any RFC:

Retrieve: RFC

Doc-ID:

                    RFCnnnn

Here "nnnn" must be filled with leading zeros to 4 digits.

   (c) The RFC-INFO@RFC-EDITOR.ORG server provides other capabilities,
   
       e.g., search and retrieval based on author, title, and/or
       keyword.  For more information, send the following message body
       to the server:

help:

               help

The server will email back the results.

3. Current Technical Specifications

3.1. Standard Protocols Ordered by STD

Mnemonic   Title                                               RFC# STD#
-----------------------------------------------------------------------
--------   Internet Official Protocol Standards                3700   1*
--------   [Reserved for Assigned Numbers.  See RFC 1700 and          2
              RFC 3232.]
--------   Requirements for Internet Hosts - Communication     1122   3
              Layers
--------   Requirements for Internet Hosts - Application       1123   3
              and Support
--------   [Reserved for Router Requirements.  See RFC 1812.]         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-SIZE  SMTP Service Extension for Message Size             1870  10
              Declaration
MAIL       Standard for the format of ARPA Internet text        822  11
              messages
--------   [Reserved for Network Time Protocol (NTP).                12
              See RFC 1305.]
DOMAIN     Domain names - concepts and facilities              1034  13
DOMAIN     Domain names - implementation and specification     1035  13
--------   [Was Mail Routing and the Domain System.                  14
              Now Historic.]
--------   [Was Simple Network Management Protocol.                  15
              Now Historic.]
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
--------   [Was Exterior Gateway Protocol (RFC 904).                 18
              Now Historic.]

NETBIOS    Protocol standard for a NetBIOS service on          1001  19
              a TCP/UDP transport: Concepts and methods
NETBIOS    Protocol standard for a NetBIOS service on          1002  19
              a TCP/UDP transport: Detailed specifications
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                                         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: List Option                 861  32
TFTP       The TFTP Protocol (Revision 2)                      1350  33
--------   [Was Routing Information Protocol (RIP).                  34
              Replaced by STD 56.]
TP-TCP     ISO transport services on top of the TCP:           1006  35
              Version 3
IP-FDDI    Transmission of IP and ARP over FDDI Networks       1390  36
ARP        Ethernet Address Resolution Protocol: Or             826  37
              converting network protocol addresses to 48.
              bit Ethernet address for transmission on
              Ethernet hardware
RARP       Reverse Address Resolution Protocol                  903  38
IP-ARPA    [Was BBN Report 1822 (IMP/Host Interface).                39
              Now Historic.]
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
              HYPERchannel: Protocol specification
IP-ARC     Transmitting IP traffic over ARCNET networks        1201  46
IP-SLIP    Nonstandard for transmission of IP datagrams        1055  47
              over serial lines: SLIP
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
--------   [Reserved for Definitions of Managed Objects for          50
              the Ethernet-like Interface Types.
              See RFC 3638.]
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 Service  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
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
RMON-MIB   Remote Network Monitoring Management Information    2819  59
              Base
SMTP-Pipe  SMTP Service Extension for Command Pipelining       2920  60
ONE-PASS   A One-Time Password System                          2289  61
ARCH-SNMP  An Architecture for Describing Simple Network       3411  62
              Management Protocol (SNMP) Management
              Frameworks
MPD-SNMP   Message Processing and Dispatching for the          3412  62
              Simple Network Management Protocol (SNMP)
SNMP-APP   Simple Network Management Protocol (SNMP)           3413  62
              Applications
USM-SNMPV3 User-based Security Model (USM) for version         3414  62
              3 of the Simple Network Management Protocol
              (SNMPv3)
VACM-SNMP  View-based Access Control Model (VACM) for          3415  62
              the Simple Network Management Protocol (SNMP)
OPS-MIB    Version 2 of the Protocol Operations for the        3416  62
              Simple Network Management Protocol (SNMP)
TRANS-MIB  Transport Mappings for the Simple Network           3417  62
              Management Protocol (SNMP)
SNMPv2-MIB Management Information Base (MIB) for the           3418  62
              Simple Network Management Protocol (SNMP)
UTF-8      UTF-8, a transformation format of ISO 10646         3629  63*
RTP        RTP: A Transport Protocol for Real-Time             3550  64*
              Applications
RTP-AV     RTP Profile for Audio and Video Conferences         3551  65*
              with Minimal Control

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

3.2. Standard Protocols Ordered by RFC

Mnemonic   Title                                               STD# RFC#
------------------------------------------------------------------------
--------   Internet Official Protocol Standards                 1  3700*
UTF-8      UTF-8, a transformation format of ISO 10646         63  3629*
RTP-AV     RTP Profile for Audio and Video Conferences         65  3551*
              with Minimal Control
RTP        RTP: A Transport Protocol for Real-Time             64  3550*
              Applications
SNMPv2-MIB Management Information Base (MIB) for the           62  3418
              Simple Network Management Protocol (SNMP)
TRANS-MIB  Transport Mappings for the Simple Network           62  3417
              Management Protocol (SNMP)
OPS-MIB    Version 2 of the Protocol Operations for the        62  3416
              Simple Network Management Protocol (SNMP)
VACM-SNMP  View-based Access Control Model (VACM) for          62  3415
              the Simple Network Management Protocol (SNMP)
USM-SNMPV3 User-based Security Model (USM) for version         62  3414
              3 of the Simple Network Management Protocol
              (SNMPv3)
SNMP-APP   Simple Network Management Protocol (SNMP)           62  3413
              Applications
MPD-SNMP   Message Processing and Dispatching for the          62  3412
              Simple Network Management Protocol (SNMP)
ARCH-SNMP  An Architecture for Describing Simple Network       62  3411
              Management Protocol (SNMP) Management Frameworks
SMTP-Pipe  SMTP Service Extension for Command Pipelining       60  2920
RMON-MIB   Remote Network Monitoring Management Information    59  2819
              Base
CONF-MIB   Conformance Statements for SMIv2                    58  2580
CONV-MIB   Textual Conventions for SMIv2                       58  2579
SMIv2      Structure of Management Information Version         58  2578
              2 (SMIv2)
RIP2       RIP Version 2                                       56  2453
IP-FR      Multiprotocol Interconnect over Frame Relay         55  2427
OSPF2      OSPF Version 2                                      54  2328
ONE-PASS   A One-Time Password System                          61  2289
POP3       Post Office Protocol - Version 3                    53  1939
SMTP-SIZE  SMTP Service Extension for Message Size Declaration 10  1870
RIP2-APP   RIP Version 2 Protocol Applicability Statement      57  1722
PPP-HDLC   PPP in HDLC-like Framing                            51  1662
PPP        The Point-to-Point Protocol (PPP)                   51  1661
IP-FDDI    Transmission of IP and ARP over FDDI Networks       36  1390
TFTP       The TFTP Protocol (Revision 2)                      33  1350
MIB-II     Management Information Base for Network Management  17  1213
              of TCP/IP-based internets:MIB-II
Concise-MI Concise MIB definitions                             16  1212
IP-SMDS    Transmission of IP datagrams over the SMDS Service  52  1209
IP-ARC     Transmitting IP traffic over ARCNET networks        46  1201
SMI        Structure and identification of management          16  1155
              information for TCP/IP-based internets
IP-IPX     Standard for the transmission of 802.2 packets      49  1132
              over IPX networks
--------   Requirements for Internet Hosts - Application        3  1123
              and Support
--------   Requirements for Internet Hosts - Communication      3  1122
              Layers
IGMP       Host extensions for IP multicasting                  5  1112
IP-NETBIOS Standard for the transmission of IP datagrams       48  1088
              over NetBIOS networks
IP-SLIP    Nonstandard for transmission of IP datagrams        47  1055
              over serial lines: SLIP
IP-HC      Internet Protocol on Network System's HYPERchannel: 45  1044
              Protocol specification
IP-IEEE    Standard for the transmission of IP datagrams       43  1042
              over IEEE 802 networks
DOMAIN     Domain names - implementation and specification     13  1035
DOMAIN     Domain names - concepts and facilities              13  1034
TP-TCP     ISO transport services on top of the TCP:           35  1006
              Version 3
NETBIOS    Protocol standard for a NetBIOS service on          19  1002
              a TCP/UDP transport: Detailed specifications
NETBIOS    Protocol standard for a NetBIOS service on          19  1001
              a TCP/UDP transport: Concepts and methods
FTP        File Transfer Protocol                               9   959
--------   Internet Standard Subnetting Procedure               5   950
---------  Broadcasting Internet datagrams in the presence      5   922
              of subnets
---------  Broadcasting Internet Datagrams                      5   919
IP-WB      Host Access Protocol specification                  40   907
RARP       Reverse Address Resolution Protocol                 38   903
IP-EE      Standard for the transmission of IP datagrams       42   895
              over experimental Ethernet networks
IP-E       Standard for the transmission of IP datagrams       41   894
              over Ethernet networks
IP-DC      DCN local-network protocols                         44   891
TIME       Time Protocol                                       26   868
DAYTIME    Daytime Protocol                                    25   867
USERS      Active users                                        24   866
QUOTE      Quote of the Day Protocol                           23   865
CHARGEN    Character Generator Protocol                        22   864
DISCARD    Discard Protocol                                    21   863
ECHO       Echo Protocol                                       20   862
TOPT-EXTOP Telnet Extended Options: List Option                32   861
TOPT-TIM   Telnet Timing Mark Option                           31   860
TOPT-STAT  Telnet Status Option                                30   859
TOPT-SUPP  Telnet Suppress Go Ahead Option                     29   858
TOPT-ECHO  Telnet Echo Option                                  28   857
TOPT-BIN   Telnet Binary Transmission                          27   856
TELNET     Telnet Option Specifications                         8   855
TELNET     Telnet Protocol Specification                        8   854
ARP        Ethernet Address Resolution Protocol: Or converting 37   826
              network protocol addresses to 48.bit Ethernet
              address for transmission on Ethernet hardware
MAIL       Standard for the format of ARPA Internet text       11   822
              messages
SMTP       Simple Mail Transfer Protocol                       10   821
TCP        Transmission Control Protocol                        7   793
ICMP       Internet Control Message Protocol                    5   792
IP         Internet Protocol                                    5   791
UDP        User Datagram Protocol                               6   768

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

3.3. Draft Standard Protocols

Mnemonic   Title                                                    RFC#
------------------------------------------------------------------------
CONT-DUR   Content Duration MIME Header Definition                 3803*
MIME-ADPCM Toll Quality Voice - 32 kbit/s Adaptive Differential    3802*
              Pulse Code Modulation (ADPCM) MIME Sub-type
              Registration
MIME-VP2   Voice Profile for Internet Mail - version 2 (VPIMv2)    3801*
EMF-MDN    Message Disposition Notification                        3798*
VRRP       Virtual Router Redundancy Protocol (VRRP)               3768*
--------   DNS Extensions to Support IP Version 6                  3596
--------   Textual Conventions for MIB Modules Using               3593
              Performance History Based on 15 Minute Intervals
--------   Definitions of Managed Objects for the Synchronous      3592
              Optical Network/Synchronous Digital Hierarchy
              (SONET/SDH) Interface Type
DSN        An Extensible Message Format for Delivery               3464
              Status Notifications
EMS-CODE   Enhanced Mail System Status Codes                       3463
MIME-RPT   The Multipart/Report Content Type for the               3462
              Reporting of Mail System Administrative Messages
SMTP-DSN   Simple Mail Transfer Protocol (SMTP) Service            3461
              Extension for Delivery Status Notifications (DSNs)
--------   Capabilities Advertisement with BGP-4                   3392
--------   Content Language Headers                                3282
--------   (Extensible Markup Language) XML-Signature              3275
              Syntax and Processing
MINFAX-IM  Minimal FAX address format in Internet Mail             3192
MIN-PSTN   Minimal GSTN address format in Internet Mail            3191
RMON-MIB   Remote Network Monitoring MIB Protocol Identifier       2895
              Reference
RADIUS     Remote Authentication Dial In User Service (RADIUS)     2865
INTERGRMIB The Interfaces Group MIB                                2863
--------   Host Resources MIB                                      2790
SNMP       Definitions of Managed Objects for Extensible           2742
              SNMP Agents
--------   Agent Extensibility (AgentX) Protocol Version 1         2741
--------   HTTP Authentication: Basic and Digest Access            2617
              Authentication
HTTP       Hypertext Transfer Protocol -- HTTP/1.1                 2616
ICMPv6     Internet Control Message Protocol (ICMPv6)              2463
              for 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): Generic Syntax      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
DHCP-BOOTP DHCP Options and BOOTP Vendor Extensions                2132
DHCP       Dynamic Host Configuration Protocol                     2131
FRAME-MIB  Management Information Base for Frame Relay             2115
              DTEs Using SMIv2
IP-HIPPI   IP over HIPPI                                           2067
MIME-CONF  Multipurpose Internet Mail Extensions (MIME)            2049
              Part Five: Conformance Criteria and Examples
MIME-MSG   MIME (Multipurpose Internet Mail Extensions)            2047
              Part Three: Message Header Extensions for
              Non-ASCII Text
MIME-MEDIA Multipurpose Internet Mail Extensions (MIME)            2046
              Part Two: Media Types
MIME       Multipurpose Internet Mail Extensions (MIME)            2045
              Part One: Format of Internet Message Bodies
PPP-CHAP   PPP Challenge Handshake Authentication Protocol (CHAP)  1994
PPP-MP     The PPP Multilink Protocol (MP)                         1990
PPP-LINK   PPP Link Quality Monitoring                             1989
MTU-IPV6   Path MTU Discovery for IP version 6                     1981*
CON-MD5    The Content-MD5 Header Field                            1864
OSPF-MIB   OSPF Version 2 Management Information Base              1850
XDR        XDR: External Data Representation Standard              1832
BGP-4-APP  Application of the Border Gateway Protocol              1772
              in the Internet
BGP-4      A Border Gateway Protocol 4 (BGP-4)                     1771
PPP-DNCP   The PPP DECnet Phase IV Control Protocol (DNCP)         1762
802.5-MIB  IEEE 802.5 MIB using SMIv2                              1748
RIP2-MIB   RIP Version 2 MIB Extension                             1724
SIP-MIB    Definitions of Managed Objects for SMDS Interfaces      1694
              using SMIv2
--------   Definitions of Managed Objects for Parallel-            1660
              printer-like Hardware Devices using SMIv2
--------   Definitions of Managed Objects for RS-232-              1659
              like Hardware Devices using SMIv2
--------   Definitions of Managed Objects for Character            1658
              Stream Devices using SMIv2
BGP-4-MIB  Definitions of Managed Objects for the Fourth           1657
              Version of the Border Gateway Protocol (BGP-
              4) using SMIv2
--------   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
              Protocol
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             1356
              in the Packet Mode
NTPV3      Network Time Protocol (Version 3) Specification,        1305
              Implementation
FINGER     The Finger User Information Protocol                    1288
IP-MTU     Path MTU discovery                                      1191
--------   Proposed Standard for the Transmission of               1188
              IP Datagrams over FDDI Networks
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.]

3.4. Proposed Standard Protocols

Mnemonic   Title                                                    RFC#
------------------------------------------------------------------------
--------   Language Tags and Ranges in the Lightweight Directory   3866*
              Access Protocol (LDAP)
SIP        S/MIME Advanced Encryption Standard (AES) Requirement   3853*
              for the Session Initiation Protocol (SIP)
--------   Cryptographic Message Syntax (CMS)                      3852*
--------   Secure/Multipurpose Internet Mail Extensions (S/MIME)   3851*
              Version 3.1 Message Specification
--------   Secure/Multipurpose Internet Mail Extensions (S/MIME)   3850*
              Version 3.1 Certificate Handling
--------   ESMTP and LMTP Transmission Types Registration          3848*
--------   Mobile IPv4 Extension for Carrying Network Access       3846*
              Identifiers
--------   RObust Header Compression (ROHC): A Compression         3843*
              Profile for IP
--------   MIME Type Registrations for 3rd Generation Partnership  3839*
              Project (3GPP) Multimedia files
--------   Transmission of IPv6 Packets over Fibre Channel         3831*
--------   The Lightweight User Datagram Protocol (UDP-Lite)       3828*
--------   The Advanced Encryption Standard (AES) Cipher           3826*
              Algorithm in the SNMP User-based Security Model
--------   Dynamic Host Configuration Protocol Option for          3825*
              Coordinate-based Location Configuration Information
--------   Finding Fibre Channel over TCP/IP (FCIP) Entities       3822*
              Using Service Location Protocol version 2 (SLPv2)
--------   Fibre Channel Over TCP/IP (FCIP)                        3821*
--------   Internet X.509 Public Key Infrastructure (PKI) Proxy    3820*
              Certificate Profile
--------   Definitions of Managed Objects for RObust Header        3816*
              Compression (ROHC)
--------   Definitions of Managed Objects for the Multiprotocol    3815*
              Label Switching (MPLS), Label Distribution Protocol
              (LDP)
--------   Multiprotocol Label Switching (MPLS) Forwarding         3814*
              Equivalence Class To Next Hop Label Forwarding Entry
              (FEC-To-NHLFE) Management Information Base (MIB)
--------   Multiprotocol Label Switching (MPLS) Traffic            3812*
              Engineering (TE) Management Information Base (MIB)
--------   Definitions of Textual Conventions (TCs) for            3811*
              Multiprotocol Label Switching (MPLS) Management
--------   Multicast Listener Discovery Version 2 (MLDv2) for      3810*
              IPv6
--------   V5.2-User Adaptation Layer (V5UA)                       3807*
Print-MIB  Printer MIB v2                                          3805*
--------   Voice Profile for Internet Mail (VPIM) Addressing       3804*
--------   Security Considerations for Signaling Transport         3788*
              (SIGTRAN) Protocols
--------   The NewReno Modification to TCP's Fast Recovery         3782*
              Algorithm
--------   X.509 Extensions for IP Addresses and AS Identifiers    3779*
--------   Using IPsec to Protect Mobile IPv6 Signaling Between    3776*
              Mobile Nodes and Home Agents
--------   Mobility Support in IPv6                                3775*
--------   Point-to-Point Protocol (PPP) Vendor Protocol           3772*
--------   The Lightweight Directory Access Protocol (LDAP)        3771*
              Intermediate Response Message
--------   Certificate Extensions and Attributes Supporting        3770*
              Authentication in Point-to-Point Protocol (PPP) and
              Wireless Local Area Networks (WLAN)
--------   Securely Available Credentials Protocol                 3767*
--------   enumservice registration for Session Initiation         3764*
              Protocol (SIP) Addresses-of-Record
--------   Telephone Number Mapping (ENUM) Service Registration    3762*
              for H.323
--------   The E.164 to Uniform Resource Identifiers (URI)         3761*
              Dynamic Delegation Discovery System (DDDS)
              Application (ENUM)
--------   Stream Control Transmission Protocol (SCTP) Partial     3758*
              Reliability Extension
--------   Domain Name System KEY (DNSKEY) Resource Record (RR)    3757*
              Secure Entry Point (SEP) Flag
--------   Legacy Resolver Compatibility for Delegation Signer     3755*
              (DS)
--------   Transport Layer Security Protocol Compression Methods   3749*
PPP-EAP    Extensible Authentication Protocol (EAP)                3748*
--------   The Differentiated Services Configuration MIB           3747*
--------   MIME Type Registrations for JPEG 2000 (ISO/IEC 15444)   3745*
--------   Web Distributed Authoring and Versioning (WebDAV)       3744*
              Access Control Protocol
--------   Internet X.509 Public Key Infrastructure: Qualified     3739*
              Certificates Profile
--------   IANA Guidelines for the Registry of Remote Monitoring   3737*
              (RMON) MIB modules
--------   Stateless Dynamic Host Configuration Protocol (DHCP)    3736*
              Service for IPv6
--------   Extensible Provisioning Protocol (EPP) Transport Over   3734*
              TCP
--------   Extensible Provisioning Protocol (EPP) Contact Mapping  3733*
--------   Extensible Provisioning Protocol (EPP) Host Mapping     3732*
--------   Extensible Provisioning Protocol (EPP) Domain Name      3731*
              Mapping
-------    Extensible Provisioning Protocol (EPP)                  3730*
--------   Application Performance Measurement MIB                 3729*
--------   Definitions of Managed Objects for Very High Speed      3728*
              Digital Subscriber Lines (VDSL)
--------   Securing Block Storage Protocols over IP                3723*
--------   String Profile for Internet Small Computer Systems      3722*
              Interface (iSCSI) Names
--------   Internet Small Computer Systems Interface (iSCSI)       3720*
--------   The Secure Real-time Transport Protocol (SRTP)          3711*
--------   Internet X.509 Public Key Infrastructure: Logotypes in  3709*
              X.509 Certificates
--------   High Capacity Textual Conventions for MIB Modules       3705*
              Using Performance History Based on 15 Minute
              Intervals
--------   Policy Core Lightweight Directory Access Protocol       3703*
              (LDAP) Schema
--------   Lightweight Directory Access Protocol (LDAP):           3698*
              Additional Matching Rules
--------   IPv6 Flow Label Specification                           3697*
--------   Internet Message Access Protocol (IMAP) UNSELECT        3691*
              command
--------   Lightweight Directory Access Protocol (LDAP) and X.500  3687*
              Component Matching Rules
--------   Using Advanced Encryption Standard (AES) Counter Mode   3686*
              With IPsec Encapsulating Security Payload (ESP)
--------   SIEVE Email Filtering: Spamtest and VirusTest           3685*
              Extensions
--------   A Session Initiation Protocol (SIP) Event Package for   3680*
              Registrations
--------   The Text/Plain Format and DelSp Parameters              3676*
--------   Feature Discovery in Lightweight Directory Access       3674*
              Protocol (LDAP)
--------   Lightweight Directory Access Protocol version 3         3673*
              (LDAPv3): All Operational Attributes
--------   Subentries in the Lightweight Directory Access          3672*
              Protocol (LDAP)
--------   Collective Attributes in the Lightweight Directory      3671*
              Access Protocol (LDAP)
--------   Information Model for Describing Network Device QoS     3670*
              Datapath Mechanisms
--------   The AES-XCBC-PRF-128 Algorithm for the Internet Key     3664*
              Exchange Protocol (IKE)
--------   Delegation Signer (DS) Resource Record (RR)             3658*
--------   Use of the Camellia Encryption Algorithm in             3657*
              Cryptographic Message Syntax (CMS)
--------   Redefinition of DNS Authenticated Data (AD) bit         3655*
--------   Web Distributed Authoring and Versioning (WebDAV)       3648*
              Ordered Collections Protocol
--------   DNS Configuration options for Dynamic Host              3646*
              Configuration Protocol for IPv6 (DHCPv6)
--------   Generic Security Service Algorithm for Secret Key       3645*
              Transaction Authentication for DNS (GSS-TSIG)
--------   Policy Quality of Service (QoS) Information Model       3644*
--------   Fibre Channel (FC) Frame Encapsulation                  3643*
--------   Common Elements of Generic String Encoding Rules        3642*
              (GSER) Encodings
--------   Generic String Encoding Rules (GSER) for ASN.1 Types    3641*
--------   RTP Payload Format for Transport of MPEG-4 Elementary   3640*
              Streams
--------   Definitions of Managed Objects for the Ethernet WAN     3637
              Interface Sublayer
MAU-MIB    Definitions of Managed Objects for IEEE 802.3 Medium    3636
              Attachment Units (MAUs)
--------   Definitions of Managed Objects for the Ethernet-like    3635
              Interface Types
--------   Key Distribution Center (KDC) Server Address            3634*
              Sub-option for the Dynamic Host Configuration
              Protocol (DHCP) CableLabs Client Configuration (CCC)
              Option
--------   IPv6 Prefix Options for Dynamic Host Configuration      3633*
              Protocol (DHCP) version 6
--------   Traffic Engineering (TE) Extensions to OSPF Version 2   3630
--------   Graceful OSPF Restart                                   3623*
--------   Power Ethernet MIB                                      3621*
--------   The TUNNEL Profile                                      3620*
--------   RTP Control Protocol Extended Reports (RTCP XR)         3611*
--------   Session Initiation Protocol (SIP) Extension Header      3608*
              Field for Service Route Discovery During
              Registration
--------   Definitions of Supplemental Managed Objects for ATM     3606*
              Interface
--------   Real Time Control Protocol (RTCP) attribute in Session  3605*
              Description Protocol (SDP)
--------   The AES-CBC Cipher Algorithm and Its Use with IPsec     3602
--------   Text String Notation for Dial Sequences and Global      3601
              Switched Telephone Network (GSTN) / E.164 Addresses
--------   Sieve Email Filtering -- Subaddress Extension           3598
--------   Handling of Unknown DNS Resource Record (RR) Types      3597
--------   Textual Conventions for IPv6 Flow Label                 3595
--------   PacketCable Security Ticket Control Sub-Option for the  3594
              DHCP CableLabs Client Configuration (CCC) Option
--------   Definitions of Managed Objects for the Optical          3591
              Interface Type
--------   Source Address Selection for the Multicast Listener     3590
              Discovery (MLD) Protocol
--------   Diameter Base Protocol                                  3588
--------   IP Security Policy (IPSP) Requirements                  3586
--------   IPsec Configuration Policy Information Model            3585
--------   An Extension to the Session Initiation Protocol (SIP)   3581
              for Symmetric Response Routing
--------   Mapping of Integrated Services Digital Network (ISDN)   3578
              User Part (ISUP) Overlap Signalling to the Session
              Initiation Protocol (SIP)
--------   IANA Considerations for RADIUS (Remote Authentication   3575
              Dial In User Service)
--------   Signalling of Modem-On-Hold status in Layer 2           3573
              Tunneling Protocol (L2TP)
--------   The AES-XCBC-MAC-96 Algorithm and Its Use With IPsec    3566
--------   Use of the Advanced Encryption Standard (AES)           3565
              Encryption Algorithm in Cryptographic Message Syntax
              (CMS)
--------   Use of the RSAES-OAEP Key Transport Algorithm in        3560
              Cryptographic Message Syntax (CMS)
--------   Multicast Address Allocation MIB                        3559
--------   RTP Payload Format for Enhanced Variable Rate Codecs    3558
              (EVRC) and Selectable Mode Vocoders (SMV)
--------   RTP Payload Format for European Telecommunications      3557
              Standards Institute (ETSI) European Standard ES 201
              108 Distributed Speech Recognition Encoding
--------   Session Description Protocol (SDP) Bandwidth Modifiers  3556
              for RTP Control Protocol (RTCP) Bandwidth
--------   MIME Type Registration of RTP Payload Formats           3555
--------   On the Use of Stream Control Transmission Protocol      3554
              (SCTP) with IPsec
--------   The Group Domain of Interpretation                      3547
--------   Transport Layer Security (TLS) Extensions               3546
--------   Enhanced Compressed RTP (CRTP) for Links with High      3545
              Delay, Packet Loss and Reordering
IPCOM-PPP  IP Header Compression over PPP                          3544
--------   Registration Revocation in Mobile IPv4                  3543
--------   Authentication, Authorization and Accounting (AAA)      3539
              Transport Profile
--------   Wrapping a Hashed Message Authentication Code (HMAC)    3537
              key with a Triple-Data Encryption Standard (DES) Key
              or an Advanced Encryption Standard (AES) Key
--------   The application/ogg Media Type                          3534
NFSv4      Network File System (NFS) version 4 Protocol            3530
--------   Link Selection sub-option for the Relay Agent           3527
              Information Option for DHCPv4
--------   More Modular Exponential (MODP) Diffie-Hellman groups   3526
              for Internet Key Exchange (IKE)
MEGACO     Gateway Control Protocol Version 1                      3525
--------   Mapping of Media Streams to Resource Reservation Flows  3524
--------   Session Authorization Policy Element                    3520
PPP-BCP    Point-to-Point Protocol (PPP) Bridging Control          3518
              Protocol (BCP)
--------   A Conservative Selective Acknowledgment (SACK)-based    3517
              Loss Recovery Algorithm for TCP
--------   IMAP4 Binary Content Extension                          3516
--------   The Session Initiation Protocol (SIP) Refer Method      3515
--------   Internet Protocol Version 6 (IPv6) Addressing           3513
              Architecture
IPP-E-T    Internet Printing Protocol/1.1: IPP URL Scheme          3510
--------   Message Disposition Notification (MDN) profile for      3503
              Internet Message Access Protocol (IMAP)
--------   Internet Message Access Protocol (IMAP) - MULTIAPPEND   3502
              Extension
IMAPv4     INTERNET MESSAGE ACCESS PROTOCOL - VERSION 4rev1        3501
--------   Definitions of Managed Objects for Synchronous Optical  3498
              Network (SONET) Linear Automatic Protection
              Switching (APS) Architectures
--------   RTP Payload Format for Society of Motion Picture and    3497
              Television Engineers (SMPTE) 292M Video
--------   Dynamic Host Configuration Protocol (DHCP) Option for   3495
              CableLabs Client Configuration
--------   Punycode: A Bootstring encoding of Unicode for          3492
              Internationalized Domain Names in Applications
              (IDNA)
--------   Nameprep: A Stringprep Profile for Internationalized    3491
              Domain Names (IDN)
--------   Internationalizing Domain Names in Applications (IDNA)  3490
--------   STUN - Simple Traversal of User Datagram Protocol       3489
              (UDP) Through Network Address Translators (NATs)
--------   Compressing the Session Initiation Protocol (SIP)       3486
--------   The Session Initiation Protocol (SIP) and Session       3485
              Description Protocol (SDP) Static Dictionary for
              Signaling Compression (SigComp)
--------   Default Address Selection for Internet Protocol         3484
              version 6 (IPv6)
--------   Signalling Unnumbered Links in CR-LDP                   3480
              (Constraint-Routing Label Distribution Protocol)
--------   Fault Tolerance for the Label Distribution Protocol     3479
              (LDP)
--------   Graceful Restart Mechanism for Label Distribution       3478
              Protocol
--------   Signalling Unnumbered Links in Resource ReSerVation     3477
              Protocol - Traffic Engineering (RSVP-TE)
--------   Generalized Multi-Protocol Label Switching (GMPLS)      3473
              Signaling Resource ReserVation Protocol-Traffic
              Engineering (RSVP-TE) Extensions
--------   Generalized Multi-Protocol Label Switching (GMPLS)      3472
              Signaling Constraint-based Routed Label Distribution
              Protocol (CR-LDP) Extensions
--------   Generalized Multi-Protocol Label Switching (GMPLS)      3471
              Signaling Functional Description
CIM        Policy Core Information Model (PCIM) Extensions         3460
--------   Critical Content Multi-purpose Internet Mail            3459
              Extensions (MIME) Parameter
--------   Message Context for Internet Mail                       3458
--------   Dynamic Host Configuration Protocol (DHCPv4)            3456
              Configuration of IPsec Tunnel Mode
--------   Preparation of Internationalized Strings                3454
              ("stringprep")
---------  TCP Friendly Rate Control (TFRC): Protocol              3448
              Specification
---------  Limiting the Scope of the KEY Resource Record (RR)      3445
---------  Time To Live (TTL) Processing in Multi-Protocol Label   3443
              Switching (MPLS) Networks
---------  The Classless Static Route Option for Dynamic Host      3442
              Configuration Protocol (DHCP) version 4
--------   Definitions of Extension Managed Objects for            3440
              Asymmetric Digital Subscriber Lines
--------   Layer-Two Tunneling Protocol Extensions for PPP Link    3437
              Control Protocol Negotiation
--------   Transport Layer Security over Stream Control            3436
              Transmission Protocol
--------   Remote Monitoring MIB Extensions for High Capacity      3434
              Alarms
--------   Entity Sensor Management Information Base               3433
--------   Network performance measurement with periodic streams   3432
--------   Sieve Extension: Relational Tests                       3431
--------   Session Initiation Protocol (SIP) Extension for         3428
              Instant Messaging
--------   Obsoleting IQUERY                                       3425
--------   Internet Media Type message/sipfrag                     3420
--------   Textual Conventions for Transport Addresses             3419
--------   Zero-byte Support for Bidirectional Reliable Mode       3408
              (R-mode) in Extended Link-Layer Assisted RObust
              Header Compression (ROHC) Profile
--------   Session Description Protocol (SDP) Simple Capability    3407
              Declaration
NAPTR      Dynamic Delegation Discovery System (DDDS) Part Four:   3404
              The Uniform Resource Identifiers (URI)
NAPTR      Dynamic Delegation Discovery System (DDDS) Part Three:  3403
              The Domain Name System (DNS) Database
NAPTR      Dynamic Delegation Discovery System (DDDS) Part Two:    3402
              The Algorithm
--------   Integrated Services Digital Network (ISDN) User Part    3398
              (ISUP) to Session Initiation Protocol (SIP) Mapping
--------   Dynamic Host Configuration Protocol (DHCP) Domain       3397
              Search Option
--------   Encoding Long Options in the Dynamic Host               3396
              Configuration Protocol (DHCPv4)
RMON-MIB   Remote Network Monitoring MIB Protocol Identifier       3395
              Reference Extensions
--------   IP Packet Delay Variation Metric for IP Performance     3393
              Metrics (IPPM)
--------   Increasing TCP's Initial Window                         3390
--------   Real-time Transport Protocol (RTP) Payload for Comfort  3389
              Noise (CN)
--------   Grouping of Media Lines in the Session Description      3388
              Protocol (SDP)
IPP-E-T    Internet Printing Protocol (IPP): The 'collection'      3382
              attribute syntax
IPP-E-T    Internet Printing Protocol (IPP): Job Progress          3381
              Attributes
IPP-E-T    Internet Printing Protocol (IPP): Job and Printer Set   3380
              Operations
--------   Delegated Path Validation and Delegated Path Discovery  3379
              Protocol Requirements
--------   Lightweight Directory Access Protocol (v3): Technical   3377
              Specification
IGMP       Internet Group Management Protocol, Version 3           3376
--------   Layer Two Tunneling Protocol "L2TP" Management          3371
              Information Base
--------   Cryptographic Message Syntax (CMS) Algorithms           3370
--------   The 'go' URI Scheme for the Common Name Resolution      3368
              Protocol
--------   Common Name Resolution Protocol (CNRP)                  3367
--------   Real-time Facsimile (T.38) - image/t38 MIME Sub-type    3362
              Registration
--------   Dynamic Host Configuration Protocol (DHCP-for-IPv4)     3361
              Option for Session Initiation Protocol (SIP) Servers
--------   Layer Two Tunnelling Protocol (L2TP) Over ATM           3355
              Adaptation Layer 5 (AAL5)
--------   Small Computer Systems Interface protocol over the      3347
              Internet (iSCSI) Requirements and Design
              Considerations
MOBILEIPSU IP Mobility Support for IPv4                            3344
--------   The Application Exchange (APEX) Option Party Pack,      3342
              Part Deux!
--------   The Application Exchange (APEX) Access Service          3341
--------   The Application Exchange Core                           3340
--------   Date and Time on the Internet: Timestamps               3339
--------   Class Extensions for PPP over Asynchronous Transfer     3337
              Mode Adaptation Layer 2
--------   PPP Over Asynchronous Transfer Mode Adaptation Layer 2  3336
              (AAL2)
--------   MIME-based Secure Peer-to-Peer Business Data            3335
              Interchange over the Internet
--------   Signaling System 7 (SS7) Message Transfer Part 3        3332
              (MTP3) - User Adaptation Layer (M3UA)
--------   Signaling System 7 (SS7) Message Transfer Part 2        3331
              (MTP2) - User Adaptation Layer
--------   Security Mechanism Agreement for the Session            3329
              Initiation Protocol (SIP)
--------   Session Initiation Protocol (SIP) Extension Header      3327
              Field for Registering Non-Adjacent Contacts
--------   The Reason Header Field for the Session Initiation      3326
              Protocol (SIP)
--------   A Privacy Mechanism for the Session Initiation          3323
              Protocol (SIP)
--------   Signaling Compression (SigComp)                         3320
--------   Dynamic Host Configuration Protocol (DHCPv6) Options    3319
              for Session Initiation Protocol (SIP) Servers
--------   Dynamic Host Configuration Protocol for IPv6 (DHCPv6)   3315
--------   Integration of Resource Management and Session          3312
              Initiation Protocol (SIP)
--------   The Session Initiation Protocol (SIP) UPDATE Method     3311
--------   Stream Control Transmission Protocol (SCTP) Checksum    3309
              Change
--------   Layer Two Tunneling Protocol (L2TP) Differentiated      3308
              Services Extension
--------   Allocation Guidelines for IPv6 Multicast Addresses      3307
--------   Unicast-Prefix-based IPv6 Multicast Addresses           3306
TIFF       Tag Image File Format (TIFF) - image/tiff MIME          3302
              Sub-type Registration
--------   Layer Two Tunnelling Protocol (L2TP): ATM access        3301
              network extensions
--------   Content Negotiation for Messaging Services based on     3297
              Email
--------   Named Subordinate References in Lightweight Directory   3296
              Access Protocol (LDAP) Directories
--------   Definitions of Managed Objects for the General Switch   3295
              Management Protocol (GSMP)
--------   General Switch Management Protocol (GSMP) Packet        3293
              Encapsulations for Asynchronous Transfer Mode (ATM),
              Ethernet and Transmission Control Protocol (TCP)
--------   General Switch Management Protocol (GSMP) V3            3292
--------   Textual Conventions for Internet Network Addresses      3291
--------   Management Information Base for the Differentiated      3289
              Services Architecture
--------   Using the Simple Object Access Protocol (SOAP) in       3288
              Blocks Extensible Exchange Protocol (BEEP)
--------   Remote Monitoring MIB Extensions for Differentiated     3287
              Services
--------   The VCDIFF Generic Differencing and Compression Data    3284
              Format
--------   An Internet Attribute Certificate Profile for           3281
              Authorization
--------   Internet X.509 Public Key Infrastructure Certificate    3280
              and Certificate Revocation List (CRL) Profile
--------   Algorithms and Identifiers for the Internet X.509       3279
              Public Key Infrastructure Certificate and
              Certificate Revocation List (CRL) Profile
--------   Definitions of Managed Objects for High Bit-Rate DSL -  3276
              2nd generation (HDSL2) and Single-Pair High-Speed
              Digital Subscriber Line (SHDSL) Lines Processing
--------   Compressed Data Content Type for Cryptographic Message  3274
              Syntax (CMS)
--------   Remote Network Monitoring Management Information Base   3273
              for High Capacity Networks
--------   Multi-Protocol Label Switching (MPLS) Support of        3270
              Differentiated Services
--------   Advanced Encryption Standard (AES) Ciphersuites for     3268
              Transport Layer Security (TLS)
--------   Real-Time Transport Protocol (RTP) Payload Format and   3267
              File Storage Format for the Adaptive Multi-Rate
              (AMR) and Adaptive Multi-Rate Wideband (AMR-WB)
              Audio Codecs
--------   Support for IPv6 in Session Description Protocol (SDP)  3266
SIP        Session Initiation Protocol (SIP)-Specific Event        3265
              Notification
SIP        An Offer/Answer Model with Session Description          3264
              Protocol (SDP)
SIP        Session Initiation Protocol (SIP): Locating SIP         3263
              Servers
SIP        Reliability of Provisional Responses in Session         3262
              Initiation Protocol (SIP)
SIP        SIP: Session Initiation Protocol                        3261
--------   The DOCSIS (Data-Over-Cable Service Interface           3256
              Specifications) Device Class DHCP (Dynamic Host
              Configuration Protocol) Relay Agent Information
              Sub-option
--------   Extending Point-to-Point Protocol (PPP) over            3255
              Synchronous Optical NETwork/Synchronous Digital
              Hierarchy (SONET/SDH) with virtual concatenation,
              high order and low order payloads
--------   Versioning Extensions to WebDAV (Web Distributed        3253
              Authoring and Versioning)
FFIF       Tag Image File Format Fax eXtended (TIFF-FX) -          3250
              image/tiff-fx MIME Sub-type Registration
--------   An Expedited Forwarding PHB (Per-Hop Behavior)          3246
--------   RObust Header Compression (ROHC): A Link-Layer          3242
              Assisted Profile for IP/UDP/RTP
--------   Robust Header Compression (ROHC) over PPP               3241
--------   Definitions of Managed Objects for Scheduling           3231
              Management Operations
--------   Instance Digests in HTTP                                3230
--------   Delta encoding in HTTP                                  3229
--------   DNSSEC and IPv6 A6 aware server/resolver message size   3226
              requirements
--------   Indicating Resolver Support of DNSSEC                   3225
SLP        Vendor Extensions for Service Location Protocol,        3224
              Version 2
--------   Telephony Routing over IP (TRIP)                        3219
--------   LSP Modification Using CR-LDP                           3214
--------   Constraint-Based LSP Setup using LDP                    3212
--------   RSVP-TE: Extensions to RSVP for LSP Tunnels             3209
--------   SMTP Service Extension for Secure SMTP over Transport   3207
              Layer Security
--------   The SYS and AUTH POP Response Codes                     3206
--------   MIME media types for ISUP and QSIG Objects              3204
--------   Definitions of Managed Objects for Frame Relay Service  3202
              Level Definitions
--------   Definitions of Managed Objects for Circuit to           3201
              Interface Translation
--------   Reliable Delivery for syslog                            3195
--------   Securing L2TP using IPsec                               3193
--------   RTP Payload Format for 12-bit DAT Audio and 20- and     3190
              24-bit Linear Sampled Audio
--------   RTP Payload Format for DV (IEC 61834) Video             3189
--------   Reuse of CMS Content Encryption Keys                    3185
--------   Identity Representation for RSVP                        3182
--------   Signaled Preemption Priority Policy Element             3181
--------   Aggregation of RSVP for IPv4 and IPv6 Reservations      3175
IPCOMP     IP Payload Compression Protocol (IPComp)                3173
--------   The Addition of Explicit Congestion Notification (ECN)  3168
              to IP
--------   Definitions of Managed Objects for the Delegation of    3165
              Management Scripts
--------   RADIUS and IPv6                                         3162
TSA        Internet X.509 Public Key Infrastructure Time-Stamp     3161
              Protocol (TSP)
PIB        Structure of Policy Provisioning Information (SPPI)     3159
MIME-PGP   MIME Security with OpenPGP                              3156
--------   PPP Multiplexing                                        3153
--------   Transmission of IPv6 Packets over IEEE 1394 Networks    3146
--------   L2TP Disconnect Cause Information                       3145
--------   Remote Monitoring MIB Extensions for Interface          3144
              Parameters Monitoring
--------   Per Hop Behavior Identification Codes                   3140
--------   The Congestion Manager                                  3124
--------   Extensions to IPv6 Neighbor Discovery for Inverse       3122
              Discovery Specification
--------   A More Loss-Tolerant RTP Payload Format for MP3 Audio   3119
--------   Authentication for DHCP Messages                        3118
--------   Mobile IP Vendor/Organization-Specific Extensions       3115
--------   Service Location Protocol Modifications for IPv6        3111
--------   RSA/SHA-1 SIGs and RSA KEYs in the Domain Name System   3110
              (DNS)
--------   Conventions for the use of the Session Description      3108
              Protocol (SDP) for ATM Bearer Connections
SDP        Carrying Label Information in BGP-4                     3107
OSPF-NSSA  The OSPF Not-So-Stubby Area (NSSA) Option               3101
RSVP       RSVP Cryptographic Authentication -- Updated Message    3097
              Type Value
--------   RObust Header Compression (ROHC): Framework and four    3095
              profiles
--------   DNS Security Extension Clarification on Zone Status     3090
COPS-PR    COPS Usage for Policy Provisioning (COPS-PR)            3084
--------   Mapping the BEEP Core onto TCP                          3081
BEEP       The Blocks Extensible Exchange Protocol Core            3080
--------   A Link-Layer Tunneling Mechanism for Unidirectional     3077
              Links
--------   DHC Load Balancing Algorithm                            3074
L2TP-FR    Layer Two Tunneling Protocol (L2TP) over Frame Relay    3070
--------   An Anycast Prefix for 6to4 Relay Routers                3068
BGP-ASC    Autonomous System Confederations for BGP                3065
--------   LDAP Password Modify Extended Operation                 3062
CIM        Policy Core Information Model -- Version 1              3060
              Specification
SLPv2      Attribute List Extension for the Service Location       3059
              Protocol
--------   ISDN Q.921-User Adaptation Layer                        3057
--------   Connection of IPv6 Domains via IPv4 Clouds              3056
--------   Management Information Base for the PINT Services       3055
              Architecture
--------   TN3270E Service Location and Session Balancing          3049
--------   RTP Payload Format for ITU-T Recommendation G.722.1     3047
--------   DHCP Relay Agent Information Option                     3046
--------   Enhancing TCP's Loss Recovery Using Limited Transmit    3042
--------   Privacy Extensions for Stateless Address                3041
              Autoconfiguration in IPv6
--------   VCID Notification over ATM link for LDP                 3038
--------   LDP Specification                                       3036
--------   MPLS using LDP and ATM VC Switching                     3035
--------   Use of Label Switching on Frame Relay Networks          3034
              Specification
--------   The Assignment of the Information Field and Protocol    3033
              Identifier in the Q.2941 Generic Identifier and
              Q.2957 User-to-user Signaling for the Internet
              Protocol
--------   MPLS Label Stack Encoding                               3032
MPLS       Multiprotocol Label Switching Architecture              3031
--------   SMTP Service Extensions for Transmission of Large and   3030
              Binary MIME Messages
--------   Sieve: A Mail Filtering Language                        3028
--------   Reverse Tunneling for Mobile IP, revised                3024
--------   XML Media Types                                         3023
--------   Using 31-Bit Prefixes on IPv4 Point-to-Point Links      3021
--------   Definitions of Managed Objects for Monitoring and       3020
              Controlling the UNI/NNI Multilink Frame Relay
              Function
--------   IP Version 6 Management Information Base for The        3019
              Multicast Listener Discovery Protocol
--------   XML DTD for Roaming Access Phone Book                   3017
--------   RTP Payload Format for MPEG-4 Audio/Visual Streams      3016
--------   Notification Log MIB                                    3014
--------   Mobile IPv4 Challenge/Response Extensions               3012
--------   The IPv4 Subnet Selection Option for DHCP               3011
--------   Registration of parityfec MIME types                    3009
DNSSEC     Domain Name System Security (DNSSEC) Signing Authority  3008
--------   Secure Domain Name System (DNS) Dynamic Update          3007
--------   Integrated Services in the Presence of Compressible     3006
              Flows
--------   The User Class Option for DHCP                          3004
--------   The audio/mpeg Media Type                               3003
--------   Specification of the Null Service Type                  2997
--------   Format of the RSVP DCLASS Object                        2996
--------   Computing TCP's Retransmission Timer                    2988
--------   Registration of Charset and Languages Media Features    2987
              Tags
--------   Use of the CAST-128 Encryption Algorithm in CMS         2984
--------   Distributed Management Expression MIB                   2982
--------   Event MIB                                               2981
--------   The SIP INFO Method                                     2976
--------   IMAP4 ID extension                                      2971
--------   HTTP State Management Mechanism                         2965
--------   RSVP Refresh Overhead Reduction Extensions              2961
--------   Stream Control Transmission Protocol                    2960
--------   Real-Time Transport Protocol Management Information     2959
              Base
--------   Definitions of Managed Objects for Monitoring and       2955
              Controlling the Frame Relay/ATM PVC Service
              Interworking Function
FR-MIB     Definitions of Managed Objects for Frame Relay Service  2954
--------   Telnet Encryption: CAST-128 64 bit Cipher Feedback      2950
--------   Telnet Encryption: CAST-128 64 bit Output Feedback      2949
--------   Telnet Encryption: DES3 64 bit Output Feedback          2948
--------   Telnet Encryption: DES3 64 bit Cipher Feedback          2947
--------   Telnet Data Encryption Option                           2946
--------   The SRP Authentication and Key Exchange System          2945
--------   Telnet Authentication: SRP                              2944
--------   TELNET Authentication Using DSA                         2943
--------   Telnet Authentication: Kerberos Version 5               2942
TOPT-AUTH  Telnet Authentication Option                            2941
--------   Definitions of Managed Objects for Common Open Policy   2940
              Service (COPS) Protocol Clients
--------   Identifying Composite Media Features                    2938
--------   The Name Service Search Option for DHCP                 2937
IOTP-HTTP  Internet Open Trading Protocol (IOTP) HTTP Supplement   2935
--------   Internet Group Management Protocol MIB                  2933
--------   IPv4 Multicast Routing MIB                              2932
--------   DNS Request and Transaction Signatures ( SIG(0)s )      2931
TKEY-RR    Secret Key Establishment for DNS (TKEY RR)              2930
--------   Definitions of Managed Objects for Remote Ping,         2925
              Traceroute, and Lookup Operations
--------   List-Id: A Structured Field and Namespace for the       2919
              Identification of Mailing Lists
--------   Route Refresh Capability for BGP-4                      2918
--------   MIME Content Types in Media Feature Expressions         2913
--------   Indicating Media Features for MIME Content              2912
IPP-M-S    Internet Printing Protocol/1.1: Model and Semantics     2911
IPP-E-T    Internet Printing Protocol/1.1: Encoding and Transport  2910
--------   MADCAP Multicast Scope Nesting State Option             2907
--------   Router Renumbering for IPv6                             2894
TRANS-IPV6 Transition Mechanisms for IPv6 Hosts and Routers        2893
--------   LDAP Control Extension for Server Side Sorting of       2891
              Search Results
--------   Key and Sequence Number Extensions to GRE               2890
SACK       An Extension to the Selective Acknowledgement (SACK)    2883
              Option for TCP
--------   Content Feature Schema for Internet Fax (V2)            2879
--------   Diffie-Hellman Proof-of-Possession Algorithms           2875
--------   TCP Processing of the IPv4 Precedence Field             2873
--------   Application and Sub Application Identity Policy         2872
              Element for Use with RSVP
--------   The Inverted Stack Table Extension to the Interfaces    2864
              Group MIB
--------   RTP Payload Format for Real-Time Pointers               2862
MEXT-BGP4  Multiprotocol Extensions for BGP-4                      2858
--------   The Use of HMAC-RIPEMD-160-96 within ESP and AH         2857
--------   Textual Conventions for Additional High Capacity Data   2856
              Types
--------   DHCP for IEEE 1394                                      2855
--------   Generic Security Service API Version 2 : Java Bindings  2853
--------   Deliver By SMTP Service Extension                       2852
LDIF       The LDAP Data Interchange Format (LDIF) - Technical     2849
              Specification
--------   The PINT Service Protocol: Extensions to SIP and SDP    2848
              for IP Access to Telephone Call Services
LIPKEY     LIPKEY - A Low Infrastructure Public Key Mechanism      2847
              Using SPKM
--------   GSTN Address Element Extensions in E-mail Services      2846
TSIG       Secret Key Transaction Authentication for DNS (TSIG)    2845
--------   Definitions of Managed Objects for the Fabric Element   2837
              in Fibre Channel Standard
GSN        IP and ARP over HIPPI-6400 (GSN)                        2835
--------   ARP and IP Broadcast over HIPPI-800                     2834
--------   RTP Payload for DTMF Digits, Telephony Tones and        2833
              Telephony Signals
--------   Using Digest Authentication as a SASL Mechanism         2831
LDAP       Lightweight Directory Access Protocol (v3): Extension   2830
              for Transport Layer Security
--------   Authentication Methods for LDAP                         2829
MAIL       Internet Message Format                                 2822
SMTP       Simple Mail Transfer Protocol                           2821
--------   Integrated Service Mappings on IEEE 802 Networks        2815
--------   SBM (Subnet Bandwidth Manager): A Protocol for          2814
              RSVP-based Admission Control over IEEE 802-style
              networks
--------   URLs for Telephone Calls                                2806
--------   Certificate Management Messages over CMS                2797
--------   BGP Route Reflection - An Alternative to Full Mesh      2796
              IBGP
--------   Mobile IP Network Access Identifier Extension for IPv4  2794
--------   RTP Payload for Text Conversation                       2793
--------   Mail Monitoring MIB                                     2789
--------   Network Services Monitoring MIB                         2788
--------   Definitions of Managed Objects for the Virtual Router   2787
              Redundancy Protocol
GRE        Generic Routing Encapsulation (GRE)                     2784
DNS-SRV    A DNS RR for specifying the location of services (DNS   2782
              SRV)
MZAP       Multicast-Scope Zone Announcement Protocol (MZAP)       2776
RPSL       Routing Policy System Replication                       2769
NAT-PT     Network Address Translation - Protocol Translation      2766
              (NAT-PT)
SIIT       Stateless IP/ICMP Translation Algorithm (SIIT)          2765
--------   RSVP Extensions for Policy Control                      2750
--------   COPS usage for RSVP                                     2749
COPS       The COPS (Common Open Policy Service) Protocol          2748
--------   RSVP Cryptographic Authentication                       2747
--------   RSVP Operation Over IP Tunnels                          2746
--------   RSVP Diagnostic Messages                                2745
--------   Generic Security Service API Version 2 : C-bindings     2744
--------   Generic Security Service Application Program Interface  2743
              Version 2, Update 1
--------   OSPF for IPv6                                           2740
--------   Calendar Attributes for vCard and LDAP                  2739
--------   Corrections to "A Syntax for Describing Media Feature   2738
              Sets"
--------   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
              Correction
--------   Format for Literal IPv6 Addresses in URL's              2732
MADCAP     Multicast Address Dynamic Client Allocation Protocol    2730
              (MADCAP)
--------   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: Meter MIB                     2720
TLS        Addition of Kerberos Cipher Suites to Transport Layer   2712
              Security (TLS)
--------   IPv6 Router Alert Option                                2711
MLD-IPv6   Multicast Listener Discovery (MLD) for IPv6             2710
--------   Integrated Services Mappings for Low Speed Networks     2688
--------   PPP in a Real-time Oriented HDLC-like Framing           2687
--------   The Multi-Class Extension to Multi-Link PPP             2686
VPNI       Virtual Private Networks Identifier                     2685
--------   Multiprotocol Encapsulation over ATM Adaptation Layer   2684
              5
--------   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
NHRP-MIB   Definitions of Managed Objects for the NBMA Next Hop    2677
              Resolution Protocol (NHRP)
--------   IPv6 Jumbograms                                         2675
--------   Definitions of Managed Objects for Bridges with         2674
              Traffic Classes, Multicast Filtering and Virtual LAN
              Extensions
--------   Non-Terminal DNS Name Redirection                       2672
EDNS0      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
--------   IP Tunnel MIB                                           2667
--------   Definitions of Managed Objects for the ADSL Lines       2662
L2TP       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)
CIP        The Architecture of the Common Indexing Protocol (CIP)  2651
ODMR-SMTP  ON-DEMAND MAIL RELAY (ODMR) SMTP with Dynamic IP        2645
              Addresses
--------   Internationalization of the File Transfer Protocol      2640
--------   Enhanced Security Services for S/MIME                   2634
--------   Diffie-Hellman Key Agreement Method                     2631
--------   IP and ARP over Fibre Channel                           2625
--------   NFS Version 2 and Version 3 Security Issues and the     2623
              NFS Protocol's Use of RPCSEC_GSS and Kerberos V5
RPSL       Routing Policy Specification Language (RPSL)            2622
--------   RADIUS Authentication Server MIB                        2619
--------   RADIUS Authentication Client MIB                        2618
--------   PPP over SONET/SDH                                      2615
--------   Remote Network Monitoring MIB Extensions for Switched   2613
              Networks Version 1.0
--------   DHCP Options for Service Location Protocol              2610
--------   Service Templates and Service: Schemes                  2609
--------   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
--------   Assured Forwarding PHB Group                            2597
--------   Using TLS with IMAP, POP3 and ACAP                      2595
--------   Definitions of Managed Objects for WWW Services         2594
--------   Transmission of IPv6 Packets over Frame Relay Networks  2590
              Specification
LDAPv3     Lightweight Directory Access Protocol (v3): Extensions  2589
              for Dynamic Directory Services
--------   Internet X.509 Public Key Infrastructure LDAPv2 Schema  2587
--------   Internet X.509 Public Key Infrastructure Operational    2585
              Protocols: FTP and HTTP
--------   Definitions of Managed Objects for APPN/HPR in IP       2584
              Networks
TCP-CC     TCP Congestion Control                                  2581
APP-MIB    Application Management MIB                              2564
--------   DHCP Option to Disable Stateless Auto-Configuration in  2563
              IPv4 Clients
TN2370E-RT Definitions of Protocol and Managed Objects for         2562
              TN3270E Response Time Collection Using SMIv2
              (TN3270E-RT-MIB)
--------   Base Definitions of Managed Objects for TN3270E Using   2561
              SMIv2
PKIX       X.509 Internet Public Key Infrastructure Online         2560
              Certificate Status Protocol - OCSP
MHTML      MIME Encapsulation of Aggregate Documents, such as      2557
              HTML (MHTML)
--------   SMTP Service Extension for Authentication               2554
--------   Use of BGP-4 Multiprotocol Extensions for IPv6          2545
              Inter-Domain Routing
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
--------   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
--------   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 and      2513
              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
--------   Compressing IP/UDP/RTP Headers for Low-Speed Serial     2508
              Links
--------   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
              Type
--------   Definitions of Managed Objects for the DS1, E1, DS2     2495
              and E2 Interface Types
--------   Definitions of Managed Objects for the DS0 and DS0      2494
              Bundle Interface Type
IPv6ATMNET IPv6 over ATM Networks                                  2492
IPv6-NBMA  IPv6 over Non-Broadcast Multiple Access (NBMA)          2491
              networks
NAI        The Network Access Identifier                           2486
--------   DHCP Option for The Open Group's User Authentication    2485
              Protocol
--------   PPP LCP Internationalization Configuration Option       2484
--------   Gateways and MIME Security Multiparts                   2480
--------   The Simple and Protected GSS-API Negotiation Mechanism  2478
--------   Message Submission                                      2476
--------   Definition of the Differentiated Services Field (DS     2474
              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: ICMPv6    2466
              Group
--------   Management Information Base for IP Version 6: Textual   2465
              Conventions and General Group
--------   Transmission of IPv6 Packets over Ethernet Networks     2464
EBN-MIB    Definitions of Managed Objects for Extended Border      2457
              Node
--------   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 User   2454
              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
              (iMIP)
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-T Rec.   2429
              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
MIME-VPIM  VPIM Voice Message MIME Sub-type Registration           2423
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 UNI   2417
              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 for   2407
              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
CIDMID-URL Content-ID and Message-ID Uniform Resource Locators     2392
--------   Feature negotiation mechanism for the File Transfer     2389
              Protocol
--------   Returning Values from Forms: multipart/form-data        2388
MIME-RELAT The MIME Multipart/Related Content-type                 2387
--------   Protection of BGP Sessions via the TCP MD5 Signature    2385
              Option
POP-URL    POP URL Scheme                                          2384
--------   Interoperation of Controlled-Load Service and           2381
              Guaranteed Service with ATM
--------   RSVP over ATM Implementation Requirements               2380
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
IMAP4NAME  IMAP4 Namespace                                         2342
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        SDP: Session Description Protocol                       2327
RTSP       Real Time Streaming Protocol (RTSP)                     2326
IPOA-MIB   Definitions of Managed Objects for Classical IP and     2320
              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
FFIF       File Format for Internet Fax                            2301
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
              Directory
--------   Mobile-IPv4 Configuration Option for PPP IPCP           2290
SLM-APP    Definitions of System-Level Managed Objects for         2287
              Applications
--------   Definitions of Managed Objects for IEEE 802.12          2266
              Repeater Devices
--------   A Summary of the X.500(96) User Schema for use with     2256
              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): UTF-8       2253
              String Representation of Distinguished Names
LDAP3-ATD  Lightweight Directory Access Protocol (v3): Attribute   2252
              Syntax Definitions
LDAPV3     Lightweight Directory Access Protocol (v3)              2251
RTP-MPEG   RTP Payload Format for MPEG1/MPEG2 Video                2250
---------  Using Domains in LDAP/X.500 Distinguished Names         2247
--------   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
HPR-MIB    Definitions of Managed Objects for HPR using SMIv2      2238
ABNF       Augmented BNF for Syntax Specifications: ABNF           2234
DLUR-MIB   Definitions of Managed Objects for DLUR using SMIv2     2232
MIME-EXT   MIME Parameter Value and Encoded Word Extensions:       2231
              Character Sets, Languages, and Continuations
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 using   2213
              SMIv2
GQOS       Specification of Guaranteed Quality of Service          2212
---------  Specification of the Controlled-Load Network Element    2211
              Service
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 1       2205
              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
              Challenge/Response
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
              Messages: The Content-Disposition Header Field
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): Mapping     2156
              between X.400 and RFC 822/MIME
MAIL-SERV  Mailbox Names for Common Services, Roles and Functions  2142
URN-SYNTAX URN Syntax                                              2141
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 PPP   2125
              Bandwidth Allocation Control Protocol (BACP)
VEMMI-URL  VEMMI URL Specification                                 2122
ROUT-ALERT IP Router Alert Option                                  2113
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
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
              Codes
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
              Networks
RMON-MIB   Remote Network Monitoring Management Information Base   2021
              Version 2 using SMIv2
802.12-MIB IEEE 802.12 Interface MIB                               2020
TCP-ACK    TCP Selective Acknowledgement Options                   2018
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
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
              Starting
SNA        Serial Number Arithmetic                                1982
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
AUTH-SOCKS Username/Password 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 the Whois++ Index Service               1913
MIME-Sec   MIME Object Security Services                           1848
MIME-Encyp Security Multiparts for MIME: Multipart/Signed and      1847
              Multipart/Encrypted
WHOIS++    Architecture of the WHOIS++ service                     1835
--------   Binding Protocols for ONC RPC Version 2                 1833
RPC        RPC: Remote Procedure Call Protocol Specification       1831
              Version 2
--------   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
OSPF-DC    Extending OSPF to Support Demand Circuits               1793
MIME-EDI   MIME Encapsulation of EDI Objects                       1767
XNSCP      The PPP XNS IDP Control Protocol (XNSCP)                1764
BVCP       The PPP Banyan Vines Control Protocol (BVCP)            1763
ATM        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
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
              SMIv2
PPP-TRANS  PPP Reliable Transmission                               1663
--------   Postmaster Convention for X.400 Operations              1648
UPS-MIB    UPS Management Information Base                         1628
PPP-ISDN   PPP over ISDN                                           1618
PPP-X25    PPP in X.25                                             1598
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)
SRB-MIB    Definitions of Managed Objects for Source Routing       1525
              Bridges
CIDR-STRA  Classless Inter-Domain Routing (CIDR): an Address       1519
              Assignment and Aggregation Strategy
CIDR-ARCH  An Architecture for IP Address Allocation with CIDR     1518
CIDR       Applicability Statement for the Implementation of       1517
              Classless Inter-Domain Routing (CIDR)
--------   Token Ring Extensions to the Remote Network Monitoring  1513
              MIB
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
Equiv      Equivalences between 1988 X.400 and RFC-822 Message     1494
              Bodies
IDPR       Inter-Domain Policy Routing Protocol Specification:     1479
              Version 1
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 over  1461
              X.25
PEM-KEY    Privacy Enhancement for Internet Electronic Mail:       1424
              Part IV
PEM-ALG    Privacy Enhancement for Internet Electronic Mail:       1423
              Part III
PEM-CKM    Privacy Enhancement for Internet Electronic Mail:       1422
              Part II
PEM-ENC    Privacy Enhancement for Internet Electronic Mail:       1421
              Part I
SNMP-IPX   SNMP over IPX                                           1420
SNMP-AT    SNMP over AppleTalk                                     1419
SNMP-OSI   SNMP over OSI                                           1418
FTP        FTP-FTAM Gateway Specification                          1415
IDENT-MIB  Identification MIB                                      1414
IDENT      Identification Protocol                                 1413
---------  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
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
TOPT-RFC   Telnet Remote Flow Control Option                       1372
--------   Applicability Statement for OSPF                        1370
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
              Internet
FDDI-MIB   FDDI Management Information Base                        1285
--------   Encoding Network Addresses to Support Operation over    1277
              Non-OSI Lower Layers
--------   Replication and Distributed Operations extensions to    1276
              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
              Protocol: Version 3
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
              environments
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: DODIIS               1043
              implementation
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        726
              option
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.]

3.5. Best Current Practice by BCP

Mnemonic   Title                                               RFC# BCP#
------------------------------------------------------------------------
--------  Best Current Practices                               1818  1
--------  Addendum to RFC 1602 -- Variance Procedure           1871  2
--------  Variance for The PPP Compression Control Protocol    1915  3
             and The PPP Encryption Control Protocol
--------  An Appeal to the Internet Community to Return        1917  4
             Unsed IP Networks (Prefixes) to the IANA
--------  Address Allocation for Private Internets             1918  5
--------  Guidelines for creation, selection, and              1930  6
             registration of an Autonomous System (AS)
--------  Implications of Various Address Allocation           2008  7
             Policies for Internet Routing
--------  IRTF Research Group Guidelines and Procedures        2014  8
--------  The Internet Standards Process -- Revision 3         2026  9
--------  IAB and IESG Selection, Confirmation, and Recall     3777 10
             Process: Operation of the Nominating and Recall
             Committees
--------  The Organizations Involved in the IETF Standards     2028 11
             Process
--------  Internet Registry IP Allocation Guidelines           2050 12
--------  Multipurpose Internet Mail Extensions (MIME) Part    2048 13
             Four: Registration Procedures
--------  Key words for use in RFCs to Indicate Requirement    2119 14
             Levels
--------  Deployment of the Internet White Pages Service       2148 15
--------  Selection and Operation of Secondary DNS Servers     2182 16
--------  Use of DNS Aliases for Network Services              2219 17
--------  IETF Policy on Character Sets and Languages          2277 18
--------  IANA Charset Registration Procedures                 2978 19
--------  Classless IN-ADDR.ARPA delegation                    2317 20
--------  Expectations for Computer Security Incident          2350 21
             Response
--------  Guide for Internet Standards Writers                 2360 22
--------  Administratively Scoped IP Multicast                 2365 23
--------  RSVP over ATM Implementation Guidelines              2379 24
--------  IETF Working Group Guidelines and Procedures         2418 25
--------  Guidelines for Writing an IANA Considerations        2434 26
             Section in RFCs
--------  Advancement of MIB specifications on the IETF        2438 27
             Standards Track
--------  Enhancing TCP Over Satellite Channels using          2488 28
             Standard Mechanisms
--------  Procedure for Defining New DHCP Options              2489 29
--------  Anti-Spam Recommendations for SMTP MTAs              2505 30
--------  Media Feature Tag Registration Procedure             2506 31
--------  Reserved Top Level DNS Names                         2606 32
--------  URN Namespace Definition Mechanisms                  2611 33
--------  Changing the Default for Directed Broadcasts in      2644 34
             Routers
--------  Registration Procedures for URL Scheme Names         2717 35
--------  Guidelines for Writers of RTP Payload Format         2736 36
             Specifications
--------  IANA Allocation Guidelines For Values In the         2780 37
             Internet Protocol and Related Headers
--------  Network Ingress Filtering: Defeating Denial of       2827 38
             Service Attacks which employ IP Source Address
             Spoofing
--------  Charter of the Internet Architecture Board (IAB)     2850 39
--------  Root Name Server Operational Requirements            2870 40
--------  Congestion Control Principles                        2914 41
--------  Domain Name System (DNS) IANA Considerations         2929 42
--------  Procedures and IANA Guidelines for Definition of     2939 43
             New DHCP Options and Message Types
--------  Use of HTTP State Management                         2964 44
--------  IETF Discussion List Charter                         3005 45
--------  Recommended Internet Service Provider Security       3013 46
             Services and Procedures
--------  Tags for the Identification of Languages             3066 47
--------  End-to-end Performance Implications of Slow Links    3150 48
--------  Delegation of IP6.ARPA                               3152 49
--------  End-to-end Performance Implications of Links with    3155 50
             Errors
--------  IANA Guidelines for IPv4 Multicast Address           3171 51
             Assignments
--------  Management Guidelines & Operational Requirements     3172 52
             for the Address and Routing Parameter Area
             Domain  ("arpa")
--------  GLOP Addressing in 233/8                             3180 53
--------  IETF Guidelines for Conduct                          3184 54
--------  Guidelines for Evidence Collection and Archiving     3227 55
--------  On the use of HTTP as a Substrate                    3205 56
--------  IANA Considerations for IPv4 Internet Group          3228 57
             Management Protocol (IGMP)
--------  Defining the IETF                                    3233 58
--------  A Transient Prefix for Identifying Profiles under    3349 59
             Development
--------  Inappropriate TCP Resets Considered Harmful          3360 60
--------  Strong Security Requirements for Internet            3365 61
             Engineering Task Force Standard Protocols
--------  Advice to link designers on link Automatic Repeat    3366 62
             reQuest (ARQ)
--------  Session Initiation Protocol (SIP) for Telephones     3372 63
             (SIP-T): Context and Architectures
--------  Internet Assigned Numbers Authority (IANA)           3383 64
             Considerations for the Lightweight Directory
             Access Protocol (LDAP)
--------  Dynamic Delegation Discovery System (DDDS)           3405 65
             Part Five: URI.ARPA Assignment Procedures
--------  Uniform Resource Names (URN) Namespace Definition    3406 66
             Mechanisms
--------  Change Process for the Session Initiation            3427 67
             Protocol (SIP)
--------  Layer Two Tunneling Protocol (L2TP) Internet         3438 68
             Assigned Numbers Authority (IANA)
             Considerations Update
--------  TCP Performance Implications of Network Path         3449 69
             Asymmetry
--------  Guidelines for the Use of Extensible Markup          3470 70
             Language (XML) within IETF Protocols
--------  TCP over Second (2.5G) and Third (3G) Generation     3481 71
             Wireless Networks
--------  Guidelines for Writing RFC Text on Security          3552 72
             Considerations
--------  An IETF URN Sub-namespace for Registered Protocol    3553 73
             Parameters
--------  Coexistence between Version 1, Version 2, and        3584 74
             Version 3 of the Internet-standard Network
             Management Framework
--------  Session Initiation Protocol (SIP) Basic Call Flow    3665 75*
             Examples
--------  Session Initiation Protocol (SIP) Public Switched    3666 76*
             Telephone
--------  IETF ISOC Board of Trustee Appointment Procedures    3677 77*
--------  IETF Rights in Contributions                         3667 78*
--------  Intellectual Property Rights in IETF Technology      3668 79*
--------  Delegation of E.F.F.3.IP6.ARPA                       3681 80*
--------  The IETF XML Registry                                3688 81*
--------  Assigning Experimental and Testing Numbers           3692 82*
             Considered Useful
--------  A Practice for Revoking Posting Rights to IETF       3683 83*
             Mailing Lists
--------  Ingress Filtering for Multihomed Networks            3704 84*
--------  Best Current Practices for Third Party Call          3725 85*
             Control (3pcc) in the Session Initiation
             Protocol (SIP)
--------  Determining Strengths For Public Keys Used For       3766 86*
             Exchanging Symmetric Keys
--------  Use of Interior Gateway Protocol (IGP) Metric as     3785 87*
             a second MPLS Traffic Engineering (TE) Metric
--------  IANA Considerations for the Point-to-Point           3818 88*
             Protocol (PPP)
--------  Advice for Internet Subnetwork Designers             3819 89*

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

3.6. Best Current Practice by RFC

Mnemonic   Title                                               BCP# RFC#
------------------------------------------------------------------------
--------  Advice for Internet Subnetwork Designers              89 3819*
--------  IANA Considerations for the Point-to-Point            88 3818*
             Protocol (PPP)
--------  Use of Interior Gateway Protocol (IGP) Metric as      87 3785*
             a second MPLS Traffic Engineering (TE) Metric
--------  IAB and IESG Selection, Confirmation, and Recall      10 3777*
             Process: Operation of the Nominating and Recall
             Committees
--------  Determining Strengths For Public Keys Used For        86 3766*
             Exchanging Symmetric Keys
--------  Best Current Practices for Third Party Call           85 3725*
             Control (3pcc) in the Session Initiation Protocol
             (SIP)
--------  Ingress Filtering for Multihomed Networks             84 3704*
--------  Assigning Experimental and Testing Numbers            82 3692*
             Considered Useful
--------  The IETF XML Registry                                 81 3688*
--------  A Practice for Revoking Posting Rights to IETF        83 3683*
             Mailing Lists
--------  Delegation of E.F.F.3.IP6.ARPA                        80 3681*
--------  IETF ISOC Board of Trustee Appointment Procedures     77 3677*
--------  Intellectual Property Rights in IETF Technology       79 3668*
--------  IETF Rights in Contributions                          78 3667*
--------  Session Initiation Protocol (SIP) Public Switched     76 3666*
             Telephone
--------  Session Initiation Protocol (SIP) Basic Call Flow     75 3665*
             Examples
--------  Coexistence between Version 1, Version 2, and         74 3584
             Version 3 of the Internet-standard Network
             Management Framework
--------  An IETF URN Sub-namespace for Registered Protocol     73 3553
             Parameters
--------  Guidelines for Writing RFC Text on Security           72 3552
             Considerations
--------  TCP over Second (2.5G) and Third (3G) Generation      71 3481
             Wireless Networks
--------  Guidelines for the Use of Extensible Markup           70 3470
             Language (XML) within IETF Protocols
--------  TCP Performance Implications of Network Path          69 3449
             Asymmetry
--------  Layer Two Tunneling Protocol (L2TP) Internet          68 3438
             Assigned Numbers Authority (IANA) Considerations
             Update
--------  Change Process for the Session Initiation             67 3427
             Protocol (SIP)
--------  Uniform Resource Names (URN) Namespace Definition     66 3406
             Mechanisms
--------  Dynamic Delegation Discovery System (DDDS) Part       65 3405
             Five: URI.ARPA Assignment Procedures
--------  Internet Assigned Numbers Authority (IANA)            64 3383
             Considerations for the Lightweight Directory
             Access Protocol (LDAP)
--------  Session Initiation Protocol (SIP) for Telephones      63 3372
             (SIP-T): Context and Architectures
--------  Advice to link designers on link Automatic Repeat     62 3366
             reQuest (ARQ)
--------  Strong Security Requirements for Internet             61 3365
             Engineering Task Force Standard Protocols
--------  Inappropriate TCP Resets Considered Harmful           60 3360
--------  A Transient Prefix for Identifying Profiles under     59 3349
             Development
--------  Defining the IETF                                     58 3233
--------  IANA Considerations for IPv4 Internet Group           57 3228
             Management Protocol (IGMP)
--------  Guidelines for Evidence Collection and Archiving      55 3227
--------  On the use of HTTP as a Substrate                     56 3205
--------  IETF Guidelines for Conduct                           54 3184
--------  GLOP Addressing in 233/8                              53 3180
--------  Management Guidelines & Operational Requirements      52 3172
             for the Address and Routing Parameter Area Domain
             ("arpa")
--------  IANA Guidelines for IPv4 Multicast Address            51 3171
             Assignments
--------  End-to-end Performance Implications of Links with     50 3155
             Errors
--------  Delegation of IP6.ARPA                                49 3152
--------  End-to-end Performance Implications of Slow Links     48 3150
--------  Tags for the Identification of Languages              47 3066
--------  Recommended Internet Service Provider Security        46 3013
             Services and Procedures
--------  IETF Discussion List Charter                          45 3005
--------  IANA Charset Registration Procedures                  19 2978
--------  Use of HTTP State Management                          44 2964
--------  Procedures and IANA Guidelines for Definition of      43 2939
             New DHCP Options and Message Types
--------  Domain Name System (DNS) IANA Considerations          42 2929
--------  Congestion Control Principles                         41 2914
--------  Root Name Server Operational Requirements             40 2870
--------  Charter of the Internet Architecture Board (IAB)      39 2850
--------  Network Ingress Filtering: Defeating Denial of        38 2827
             Service Attacks which employ IP Source Address
             Spoofing
--------  IANA Allocation Guidelines For Values In the          37 2780
             Internet Protocol and Related Headers
--------  Guidelines for Writers of RTP Payload Format          36 2736
             Specifications
--------  Registration Procedures for URL Scheme Names          35 2717
--------  Changing the Default for Directed Broadcasts in       34 2644
             Routers
--------  URN Namespace Definition Mechanisms                   33 2611
--------  Reserved Top Level DNS Names                          32 2606
--------  Media Feature Tag Registration Procedure              31 2506
--------  Anti-Spam Recommendations for SMTP MTAs               30 2505
--------  Procedure for Defining New DHCP Options               29 2489
--------  Enhancing TCP Over Satellite Channels using           28 2488
             Standard Mechanisms
--------  Advancement of MIB specifications on the IETF         27 2438
             Standards Track
--------  Guidelines for Writing an IANA Considerations         26 2434
             Section in RFCs
--------  IETF Working Group Guidelines and Procedures          25 2418
--------  RSVP over ATM Implementation Guidelines               24 2379
--------  Administratively Scoped IP Multicast                  23 2365
--------  Guide for Internet Standards Writers                  22 2360
--------  Expectations for Computer Security Incident           21 2350
             Response
--------  Classless IN-ADDR.ARPA delegation                     20 2317
--------  IETF Policy on Character Sets and Languages           18 2277
--------  Use of DNS Aliases for Network Services               17 2219
--------  Selection and Operation of Secondary DNS Servers      16 2182
--------  Deployment of the Internet White Pages Service        15 2148
--------  Key words for use in RFCs to Indicate Requirement     14 2119
             Levels
--------  Internet Registry IP Allocation Guidelines            12 2050
--------  Multipurpose Internet Mail Extensions (MIME) Part     13 2048
             Four: Registration Procedures
--------  The Organizations Involved in the IETF Standards      11 2028
             Process
--------  The Internet Standards Process -- Revision 3          9  2026
--------  IRTF Research Group Guidelines and Procedures         8  2014
--------  Implications of Various Address Allocation            7  2008
             Policies for Internet Routing
--------  Guidelines for creation, selection, and               6  1930
             registration of an Autonomous System (AS)
--------  Address Allocation for Private Internets              5  1918
--------  An Appeal to the Internet Community to Return         4  1917
             Unused IP Networks (Prefixes) to the IANA
--------  Variance for The PPP Compression Control Protocol     3  1915
             and The PPP Encryption Control Protocol
--------  Addendum to RFC 1602 -- Variance Procedure            2  1871
--------  Best Current Practices                                1  1818

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

3.7. Experimental Protocols

Mnemonic   Title                                                    RFC#
------------------------------------------------------------------------
--------   SMIng - Next Generation Structure of Management         3780*
              Information
--------   Limited Slow-Start for TCP with Large Congestion        3742*
              Windows
--------   Wave and Equation Based Rate Control (WEBRC) Building   3738*
              Block
--------   Using TCP Duplicate Selective Acknowledgement           3708*
              (DSACKs) and Stream Control Transmission Protocol
              (SCTP) Duplicate Transmission Sequence Numbers
              (TSNs) to Detect Spurious Retransmissions
--------   Compact Forward Error Correction (FEC) Schemes          3695*
--------   Topology Dissemination Based on Reverse-Path Forwarding 3684*
              (TBRPF)
--------   The Generalized TTL Security Mechanism (GTSM)           3682*
--------   Domain Administrative Data in Lightweight Directory     3663*
              Access Protocol (LDAP)
--------   The Mailbox Update (MUPDATE) Distributed Mailbox        3656*
              Database Protocol
--------   HighSpeed TCP for Large Congestion Windows              3649*
--------   Optimized Link State Routing Protocol (OLSR)            3626*
--------   Multicast Source Discovery Protocol (MSDP)              3618*
--------   Ad hoc On-Demand Distance Vector (AODV) Routing         3561*
--------   Robust Explicit Congestion Notification (ECN)           3540
              Signaling with Nonces
--------   Using Extensible Markup Language-Remote Procedure       3529
              Calling (XML-RPC) in Blocks Extensible Exchange
              Protocol (BEEP)
--------   Mesh-enhanced Service Location Protocol (mSLP)          3528
--------   The Eifel Detection Algorithm for TCP                   3522
--------   TCP Congestion Control with Appropriate Byte Counting   3465
              (ABC)
--------   Forward Error Correction (FEC) Building Block           3452
--------   Layered Coding Transport (LCT) Building Block           3451
--------   Simple Network Management Protocol Over Transmission    3430
              Control Protocol Transport Mapping
--------   Select and Sort Extensions for the Service Location     3421
              Protocol (SLP)
--------   The Application Exchange (APEX) Presence Service        3343
--------   Dual Stack Hosts Using "Bump-in-the-API" (BIA)          3338
--------   Policy-Based Accounting                                 3334
--------   PGM Reliable Transport Protocol Specification           3208
--------   Domain Security Services using S/MIME                   3183
SMX        Script MIB Extensibility Protocol Version 1.1           3179
--------   ISO/IEC 9798-3 Authentication SASL Mechanism            3163
--------   Electronic Signature Policies                           3125
--------   A DNS RR Type for Lists of Address Prefixes (APL RR)    3123
--------   Finding an RSIP Server with SLP                         3105
--------   RSIP Support for End-to-end IPsec                       3104
--------   Realm Specific IP: Protocol Specification               3103
--------   Realm Specific IP: Framework                            3102
--------   OpenLDAP Root Service An experimental LDAP referral     3088
              service
--------   Notification and Subscription for SLP                   3082
--------   MPLS Loop Prevention Mechanism                          3063
--------   Internet X.509 Public Key Infrastructure Data           3029
              Validation and Certification Server Protocols
--------   Unified Memory Space Protocol Specification             3018
SAP        Session Announcement Protocol                           2974
--------   Protocol Independent Multicast MIB for IPv4             2934
MASC       The Multicast Address-Set Claim (MASC) Protocol         2909
--------   Generic AAA Architecture                                2903
--------   DNS Extensions to Support IPv6 Address Aggregation      2874
              and Renumbering
--------   TCP Congestion Window Validation                        2861
TSWTCM     A Time Sliding Window Three Colour Marker (TSWTCM)      2859
--------   OSPF over ATM and Proxy-PAR                             2844
PPP-SDL    PPP over Simple Data Link (SDL) using SONET/SDH         2823
              with ATM-like framing
--------   Diffie-Helman USM Key Management Information Base       2786
              and Textual Convention
--------   An HTTP Extension Framework                             2774
--------   Encryption using KEA and SKIPJACK                       2773
--------   Sampling of the Group Membership in RTP                 2762
--------   Definitions of Managed Objects for Service Level        2758
              Agreements Performance Monitoring
HTCP       Hyper Text Caching Protocol (HTCP/0.0)                  2756
--------   RTFM: New Attributes for Traffic Flow Measurement       2724
--------   PPP EAP TLS Authentication Protocol                     2716
--------   SPKI Certificate Theory                                 2693
--------   SPKI Requirements                                       2692
--------   QoS Routing Mechanisms and OSPF Extensions              2676
DNS        Binary Labels in the Domain Name System                 2673
--------   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
--------   A Tagged Index Object for use in the Common Indexing    2654
              Protocol
--------   An LDAP Control and Schema for Holding Operation        2649
              Signatures
--------   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
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
--------   URI Resolution Services Necessary for URN Resolution    2483
MARS-SCSP  A Distributed MARS Service Using SCSP                   2443
PIM-SM     Protocol Independent Multicast-Sparse Mode              2362
              (PIM-SM): Protocol Specification
--------   Domain Names and Company Name Retrieval                 2345
RTP-MPEG   RTP Payload Format for Bundled MPEG                     2343
--------   Intra-LIS IP multicast among routers over ATM           2337
              using Sparse Mode PIM
--------   The Safe Response Header Field                          2310
LDAP-NIS   An Approach for Using LDAP as a Network Information     2307
              Service
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
              -- Protocol Specification --
--------   A Trivial Convention for using HTTP in URN Resolution   2169
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
              Interface
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
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
SMKD       Scalable Multicast Key Distribution                     1949
--------   OSI NSAPs and IPv6                                      1888
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
BGP-IDRP   A BGP/IDRP Route Server alternative to a full           1863
              mesh routing
ESP3DES    The ESP Triple DES Transform                            1851
--------   SMTP 521 Reply Code                                     1846
--------   SMTP Service Extension for Checkpoint/Restart           1845
ST2        Internet Stream Protocol Version 2 (ST2) Protocol       1819
              Specification - Version ST2+
--------   Communicating Presentation Information in Internet      1806
              Messages: The Content-Disposition Header
--------   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 : Partial Order Service             1693
T/TCP      T/TCP -- TCP Extensions for Transactions Functional     1644
              Specification
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
              Remote Printing -- Technical Procedures
DASS       DASS - Distributed Authentication Security Service      1507
EHF-MAIL   Encoding Header Field for Internet Messages             1505
RAP        RAP: Internet Route Access Protocol                     1476
TP-IX      TP/IX: The Next Internet                                1475
--------   Routing Coordination for X.400 MHS Services Within      1465
              a Multi Protocol / Multi Network Environment
              Table Format V3 for Static Routing
--------   Using the Domain Name System To Store Arbitrary         1464
              String Attributes
IRCP       Internet Relay Chat Protocol                            1459
SIFT       SIFT/UFT: Sender-Initiated/Unsolicited File Transfer    1440
DIR-ARP    Directed ARP                                            1433
TEL-SPX    Telnet Authentication: SPX                              1412
TEL-KER    Telnet Authentication: Kerberos Version 4               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
              Version 1
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
              alerts
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: Version 2             1176
NTP-OSI    Network Time Protocol (NTP) over the OSI Remote         1165
              Operations Service
DMF-MAIL   Digest message format                                   1153
RDP        Version 2 of the Reliable Data Protocol (RDP)           1151
--------   Standard for the transmission of IP datagrams           1149
              on avian carriers
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: Versatile Message Transaction Protocol            1045
COOKIE-JAR Distributed-protocol authentication scheme              1004
NETBLT     NETBLT: A bulk data transfer protocol                    998
IRTP       Internet Reliable Transaction Protocol functional        938
              and interface specification
LDP        Loader Debugger Protocol                                 909
RDP        Reliable Data Protocol                                   908
RLP        Resource Location Protocol                               887*

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

4. Security Considerations

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

5. 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

Sandy Ginoza
USC/Information Sciences Institute
4676 Admiralty Way
Marina del Rey, CA 90292

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

6. Full Copyright Statement

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Acknowledgement

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