bottrap
Network Working Group                                        J. Reynolds
Request for Comments: 1000                                     J. Postel
                                                                     ISI
                                                             August 1987

Obsoletes: RFCs 084, 100, 160, 170, 200, 598, 699, 800, 899, 999


                THE REQUEST FOR COMMENTS REFERENCE GUIDE


STATUS OF THIS MEMO

   This RFC is a reference guide for the Internet community which
   summarizes of all the Request for Comments issued between April 1969
   and March 1987.  This guide also categorizes the RFCs by topic.

INTRODUCTION

   This RFC Reference Guide is intended to provide a historical account
   by categorizing and summarizing of the Request for Comments numbers 1
   through 999 issued between the years 1969-1987.  These documents have
   been crossed referenced to indicate which RFCs are current, obsolete,
   or revised.  Distribution of this memo is unlimited.

THE ORIGINS OF RFCS - by Stephen D. Crocker

   The DDN community now includes hundreds of nodes and thousands of
   users, but once it was all a gleam in Larry Roberts' eye.  While much
   of the development proceeded according to a grand plan, the design of
   the protocols and the creation of the RFCs was largely accidental.

   The procurement of the ARPANET was initiated in the summer of 1968 --
   Remember Vietnam, flower children, etc?  There had been prior
   experiments at various ARPA sites to link together computer systems,
   but this was the first version to explore packet-switching on a grand
   scale.  ("ARPA" didn't become "DARPA" until 1972.)  Unlike most of
   the ARPA/IPTO procurements of the day, this was a competitive
   procurement. The contract called for four IMPs to be delivered to
   UCLA, SRI, UCSB and The University of Utah.  These sites were running
   a Sigma 7 with the SEX operating system, an SDS 940 with the Genie
   operating system, an IBM 360/75 with OS/MVT (or perhaps OS/MFT), and
   a DEC PDP-10 with the Tenex operating system.  Options existed for
   additional nodes if the first experiments were successful.  BBN won
   the procurement in December 1968, but that gets ahead of this story.

   Part of the reason for selecting these four sites was these were
   existing ARPA computer science research contractors.  The precise
   usage of the ARPANET was not spelled out in advance, and the research
   community could be counted on to take some initiative.  To stimulate
   this process, a meeting was called during the summer with
   representatives from the selected sites, chaired by Elmer Shapiro


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   from SRI.  If memory serves me correctly, Jeff Rulifson came from
   SRI, Ron Stoughton from UCSB, Steve Carr from Utah and I came from
   UCLA. (Apologies to anyone I've left out; records are inaccessible or
   lost at this point.)  At this point we knew only that the network was
   coming, but the precise details weren't known.

   That first meeting was seminal.  We had lots of questions -- how IMPs
   and hosts would be connected, what hosts would say to each other, and
   what applications would be supported.  No one had any answers, but
   the prospects seemed exciting.  We found ourselves imagining all
   kinds of possibilities -- interactive graphics, cooperating
   processes, automatic data base query, electronic mail -- but no one
   knew where to begin.  We weren't sure whether there was really room
   to think hard about these problems; surely someone from the east
   would be along by and by to bring the word.  But we did come to one
   conclusion: We ought to meet again.  Over the next several months, we
   managed to parlay that idea into a series of exchange meetings at
   each of our sites, thereby setting the most important precedent in
   protocol design.

   The first few meetings were quite tenuous.  We had no official
   charter.  Most of us were graduate students and we expected that a
   professional crew would show up eventually to take over the problems
   we were dealing with.  Without clear definition of what the host-IMP
   interface would look like, or even what functions the IMP would
   provide, we focused on exotic ideas.  We envisioned the possibility
   of application specific protocols, with code downloaded to user
   sites, and we took a crack at designing a language to support this.
   The first version was known as DEL, for "Decode-Encode Language" and
   a later version was called NIL, for "Network Interchange Language."
   When the IMP contract was finally let and BBN provided some definite
   information on the host-IMP interface, all attention shifted to
   low-level matters and the ambitious ideas for automatic downloading
   of code evaporated.  It was several years before ideas like remote
   procedure calls and typed objects reappeared.

   In February of 1969 we met for the first time with BBN.  I don't
   think any of us were prepared for that meeting.  The BBN folks, led
   by Frank Heart, Bob Kahn, Severo Ornstein and Will Crowther, found
   themselves talking to a crew of graduate students they hadn't
   anticipated.  And we found ourselves talking to people whose first
   concern was how to get bits to flow quickly and reliably but hadn't
   -- of course -- spent any time considering the thirty or forty layers
   of protocol above the link level.  And while BBN didn't take over the
   protocol design process, we kept expecting that an official protocol
   design team would announce itself.

   A month later, after a particularly delightful meeting in Utah, it
   became clear to us that we had better start writing down our


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   discussions.  We had accumulated a few notes on the design of DEL and
   other matters, and we decided to put them together in a set of notes.
   I remember having great fear that we would offend whomever the
   official protocol designers were, and I spent a sleepless night
   composing humble words for our notes.  The basic ground rules were
   that anyone could say anything and that nothing was official.  And to
   emphasize the point, I labeled the notes "Request for Comments."  I
   never dreamed these notes would distributed through the very medium
   we were discussing in these notes.  Talk about Sorcerer's Apprentice!

   Over the spring and summer of 1969 we grappled with the detailed
   problems of protocol design.  Although we had a vision of the vast
   potential for intercomputer communication, designing usable protocols
   was another matter.  A custom hardware interface and custom intrusion
   into the operating system was going to be required for anything we
   designed, and we anticipated serious difficulty at each of the sites.
   We looked for existing abstractions to use.  It would have been
   convenient if we could have made the network simply look like a tape
   drive to each host, but we knew that wouldn't do.

   It was clear we needed to support remote login for interactive use --
   later known as Telnet -- and we needed to move files from machine to
   machine.  We also knew that we needed a more fundamental point of
   view for building a larger array of protocols.  Unfortunately,
   operating systems of that era tended to view themselves as the center
   of the universe; symmetric cooperation did not fit into the concepts
   currently available within these operating systems.  And time was
   pressing: The first IMP was due to be delivered to UCLA September 1,
   1969, and the rest were scheduled at monthly intervals.

   At UCLA we scrambled to build a host-IMP interface.  SDS, the builder
   of the Sigma 7, wanted many months and many dollars to do the job.
   Mike Wingfield, another grad student at UCLA, stepped in and offered
   to get interface built in six weeks for a few thousand dollars.  He
   had a gorgeous, fully instrumented interface working in five and one
   half weeks.  I was in charge of the software, and we were naturally
   running a bit late.  September 1 was Labor Day, so I knew I had a
   couple of extra days to debug the software.  Moreover, I had heard
   BBN was having some timing troubles with the software, so I had some
   hope they'd miss the ship date.  And I figured that first some
   Honeywell people would install the hardware -- IMPs were built out of
   Honeywell 516s in those days -- and then BBN people would come in a
   few days later to shake down the software.  An easy couple of weeks
   of grace.

   BBN fixed their timing trouble, air shipped the IMP, and it arrived
   on our loading dock on Saturday, August 30.  They arrived with the
   IMP, wheeled it into our computer room, plugged it in and the



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   software restarted from where it had been when the plug was pulled in
   Cambridge.  Still Saturday, August 30.  Panic time at UCLA.

   The second IMP was delivered to SRI at the beginning of October, and
   ARPA's interest was intense.  Larry Roberts and Barry Wessler came by
   for a visit on November 21, and we actually managed to demonstrate a
   Telnet-like connection to SRI.

   With the pressure to get something working and the general confusion
   as to how to achieve the high generality we all aspired to, we punted
   and defined the first set of protocols to include only Telnet and FTP
   functions.  In particular, only asymmetric, user-server relationships
   were supported.  In December 1969, we met with Larry Roberts in Utah,
   and suffered our first direct experience with "redirection".  Larry
   made it abundantly clear that our first step was not big enough, and
   we went back to the drawing board.  Over the next few months we
   designed a symmetric host-host protocol, and we defined an abstract
   implementation of the protocol known as the Network Control Program.
   ("NCP" later came to be used as the name for the protocol, but it
   originally meant the program within the operating system that managed
   connections.  The protocol itself was known blandly only as the
   host-host protocol.)  Along with the basic host-host protocol, we
   also envisioned a hierarchy of protocols, with Telnet, FTP and some
   splinter protocols as the first examples.  If we had only consulted
   the ancient mystics, we would have seen immediately that seven layers
   were required.

   The initial experiment had been declared an immediate success and the
   network continued to grow.  More and more people started coming to
   meetings, and the Network Working Group began to take shape.  Working
   Group meetings started to have 50 and 100 people in attendance
   instead of the half dozen we had had in 1968 and early 1969.  We held
   one meeting in conjunction with the Spring Joint Computer Conference
   in Atlantic City in 1971.  In October 1971 we all convened at MIT for
   a major protocol "fly-off".  Representatives from each site were on
   hand, and everyone tried to log in to everyone else's site.  With the
   exception of one site that was completely down, the matrix was almost
   completely filled in, and we had reached a major milestone in
   connectivity.

   The rapid growth of the network and the working group also led to a
   large pile of RFCs.  When the 100th RFC was in sight, Peggy Karp took
   on the task of indexing them.  That seemed like a large task then,
   and we could have hardly anticipated seeing more than a 1000 RFCs
   several years later.

   Where will it end?  The network has the exceeded all estimates of its
   growth.  It has been transformed, extended, cloned, renamed and
   reimplemented.  I doubt if there is a single computer still on the


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   network that was on it in 1971.  But the RFCs march on.  Maybe I'll
   write a few words for RFC 10,000.

REQUEST FOR COMMENTS BY CATEGORIES

   The RFCs are categorized into several broad groups and within these
   groups are subdivided by topic.  For example, the RFCs relating to
   file transfer are in 5 (Applications) c (File Transfer).

   1.  Administrative

      1a.  Assigned Numbers RFCs

         997, 990, 960, 943, 923, 900, 870, 820, 790, 776, 770, 762,
         758, 755, 750, 739, 717, 604, 503, 433, 349, 322, 317, 204,
         179, 175, 167.

      1b.  Official Protocols RFCs

         991, 961, 944, 924, 901, 880, 840, 694, 661, 617, 582, 580,
         552.
         774 - Internet Protocol Handbook Table of Contents

      1c.  Meeting Notes and Minutes

         898 - Gateway Special Interest Group Meeting Notes
         808, 805, 469 - Computer Mail Meeting Notes
         910, 807 - Multimedia Mail Meeting Notes
         585 - ARPANET Users Interest Working Group Meeting
         549, 396, 282, 253 - Graphics Meeting Notes
         371 - International Computer Communications Conference
         327 - Data and File Transfer Workshop Notes
         316 - Data Management Working Group Meeting Report
         164, 131, 116, 108, 101, 082, 077, 066, 063, 037, 021 - Network
               Working Group Meeting

      1d.  Meeting Announcements and Group Overviews

         828 - Data Communications:  IFIP's International "Network" of
               Experts
         631 - Call for Papers:  International Meeting on Minicomputers
               and Data Communication
         584 - Charter for ARPANET Users Interest Working Group
         537 - Announcement of NGG Meeting
         526 - Technical Meeting - Digital Image Processing Software
               Systems
         504 - Workshop Announcement
         483 - Cancellation of the Resource Notebook Framework Meeting
         474, 314, 246, 232, 134 - Network Graphics Working Group


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         471 - Announcement of a (Tentative) Workshop on Multi-Site
               Executive Programs
         461 - Telnet Meeting Announcement
         457 - TIPUG
         456 - Memorandum
         454 - File Transfer Protocol Meeting Announcement
         453 - Meeting Announcement to Discuss a Network Mail System
         374 - IMP System Announcement
         359 - The Status of the Release of the New IMP System (2600)
         343, 331 - IMP System Change Notification
         324 - RJE Protocol Meeting
         323 - Formation of Network Measurement Group (NMG)
         320 - Workshop on Hard Copy Line Graphics
         309 - Data and File Transfer Workshop Announcement
         299 - Information Management System
         295 - Report of the Protocol Workshop
         291, 188, 173 - Data Management Meetings
         245, 234, 207, 188, 173, 140, 116, 099, 087, 085, 075, 043, 035
               - Network Working Group Meetings
         222 - System Programmer's Workshop
         212 - NWG Meeting on Network Usage
         157 - Invitation to the Second Symposium on Problems in the
               Optimization of Data Communication Systems
         149 - The Best Laid Plans...
         147 - The Definition of a Socket
         111 - Pressure from the Chairman
         048 - A Possible Protocol Plateau
         046 - ARPA Network Protocol Notes

      1e.  Distribution List

         402, 363, 329, 303, 300, 211, 168, 155 - ARPA Network Mailing
               Lists
         069 - Distribution List Change for MIT
         052 - Updated Distribution List

      1f.  Policies

         980 - Protocol Document Order Form
         952, 810, 608 - Host Table Specification
         945 - A DoD Statement on the NRC Report
         902 - ARPA-Internet Protocol Policy
         849 - Suggestions for Improved Host Table Distribution
         678 - Document Formats
         602 - The Stockings Were Hung by the Chimney With Care
         115 - Some Network Information Center Policies on Handling
               Documents
         053 - An Official Protocol Mechanism



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      1g.  Request for Comments Administrative

         999, 899, 800, 699 - Requests for Comments Summary
         825 - Request for Comments on Requests for Comments
         629 - Scenario for Using the Network Journal
         628 - Status of RFC Numbers and a Note on Pre-assigned Journal
               Numbers
         598, 200, 170, 160, 100, 084 - RFC Index

      1h.  Bibliographies

         829 - Packet Satellite Technology Reference Sources
         290 - Computer Network and Data Sharing: A Bibliography
         243 - Network and Data Sharing Bibliography

      1i.  Other

         637 - Change of Network Address for SU-DSL
         634 - Change in Network Address for Haskins Lab
         616 - Latest Network Maps
         609 - Statement of Upcoming Move of NIC/NLS Service
         590 - MULTICS Address Change
         588 - London Node is Now Up
         551 - NYU, ANL, and LBL Joining the Net
         544 - Locating On-Line Documentation at SRI-ARC
         543 - Network Journal Submission and Delivery
         518 - ARPANET Accounts
         511 - Enterprise Phone Service to NIC From ARPANET Sites
         510 - Request for Network Mailbox Addresses
         432 - Network Logical Map
         423, 389 - UCLA Campus Computing Network Liaison Staff for APRA
               Network
         421 - A Software Consulting Service for Network Users
         419 - MIT-DMS on Vacation
         416 - The ARC System will be Unavailable for Use During
               Thanksgiving Week
         405 - Correction to RFC 404
         404 - Host Address Changes Involving Rand and ISI
         403 - Desirability of a Network 1108 Service
         386 - Letter to TIP Users - 2
         384 - Official Site IDENTS for Organizations in the ARPA
               Networks
         381 - Three Aids to Improved Network Operation
         356 - ARPA Network Control Center
         334 - Network Use on May 8
         305 - Unknown Host Numbers
         301 - BBN IMP No. 5 and NCC Schedule for March 4, 1972
         276 - NIC Course
         249 - Coordination of Equipment and Supplies Purchase


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         223 - Network Information Center Schedule for Network Users
         185 - NIC Distribution of Manuals and Handbooks
         154 - Exposition Style
         136 - Host Accounting and Administrative Procedures
         118 - Information Required for Each Service Available to the
               Network
         095 - Distribution of NWG/RFC's Through the NIC
         016 - MIT

   2.  ARPANET Host to Host Protocol

      2a.  Network Control Protocol

         801 - NCP/TCP Transition Plan
         773 - Comments on NCP/TCP Mail Service Transition Strategy
         714 - A Host/Host Protocol for an ARPANET-type Network
         689 - Tenex NCP Finite State Machine for Connections
         663 - A Lost Message Detection and Recovery Protocol
         636 - TIP/TENEX Reliability Improvements
         635 - An Assessment of ARPANET Protocols
         534, 516, 512 - Lost Message Detection
         492, 467 - Proposed Change to Host-Host Protocol
               Resynchronization of Connection Status
         489 - Comment on Resynchronization of Connection Status
               Proposal
         425 - "But my NCP Costs $500 a day..."
         210 - Improvement of Flow Control
         197 - Initial Connection Protocol - Revised
         176 - Comments on Byte Size for Connections
         165 - A Proferred Official Initial Connection Protocol
         147 - The Definition of a Socket
         142 - Time-out Mechanism in the Host-Host Protocol
         132, 124, 107, 102 - Output of the Host-Host Protocol Glitch
               Cleaning Committee
         129 - A Request for Comments on Socket Name Structure
         128 - Bytes
         117 - Some Comments on the Official Protocol
         072 - Proposed Moratorium on Changes to Network Protocol
         068 - Comments on Memory Allocation Control Commands (CEASE,
               ALL, GVB, RET) and RFNM
         065 - Comments on Host-Host Protocol Document Number 1
         060 - A Simplified NCP Protocol
         059 - Flow Control-Fixed Versus Demand Allocation
         058 - Logical Message Synchronization
         057, 054 - An Official Protocol Proffering
         056 - Third Level Protocol
         055 - A Prototypical Implementation of the NCP
         050, 049, 048, 047, 046, 045, 044, 040, 039, 038, 036, 033 -
               New Host-Host Protocol


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         042 - Message Data Types
         023 - Transmission of Multiple Control Messages
         022 - Host-Host Control Message Formats
         018 - Comments Re: Host-Host control link
         015 - Network Subsystem for Time Sharing Hosts
         011 - Implementation of the Host-Host Software Procedures in
               GORDO
         009, 001 - Host Software
         008 - ARPA Network Functional Specifications
         005 - DEL
         002 - Links

      2b.  Initial Connection Protocol

         202 - Possible Deadlock in ICP
         197 - Initial Connection Protocol - Revised
         161 - A Solution to the Race Condition in the ICP
         151, 148, 143, 127, 123 - A Proferred Official ICP
         150 - The Use of IPC Facilities
         145 - Initial Connection Protocol Control Commands
         093 - Initial Connection Protocol
         080 - Protocol and Data Formats
         066 - 3rd Level Ideas and Other Noise

   3.  Internet Level

      3a.  Internet Protocol

         815 - IP Datagram Reassembly Algorithms
         791, 760 - Internet Protocol (IP)
         781 - A Specification of the Internet Protocol IP Timestamp
               Option

      3b.  Internet Control Message Protocol

         792, 777 - Internet Control Message Protocol (ICMP)

      3c.  Gateway Protocols

         985 - Requirements for Internet Gateways
         975 - Autonomous Confederations
         970 - On Packet Switches With Infinite Storage
         911 - EGP Gateway under Berkeley Unix
         904, 890, 888, 827 -  Exterior Gateway Protocol
         875 - Gateways, Architectures, and Heffalumps
         823 - Gateway Gateway Protocol





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      3d.  Other

         986 - Working Draft - Guidelines for the Use of Internet-IP
               Addressing in the ISO Connectionless-Mode Network
         981 - An Experimental Multiple-Path Routing Algorithm
         963 - Some Problems with the Specification of the Military
               Standard Internet Protocol
         950 - Internet Standard Subnetting Procedure
         947 - Multi-Network Broadcasting Within the Internet
         940, 917, 925, 932, 936, 922 - Internet Subnets Protocol
         925, 917, 826 - Multi-LAN Address Resolution Protocol
         919, 922 - Broadcasting Internet Datagrams
         891 - DCN Local-Network Protocols
         871 - A Perspective on the ARPANET Reference Model
         831 - Backup Access to the European Side of SATNET
         817 - Modularity and Efficiency in Protocol Implementation
         816 - Fault Isolation and Recovery
         814 - Name, Addresses, Ports, and Routes
         796 - Address Mapping
         795 - Service Mappings
         730 - Extensible Field Addressing

   4.  Host Level

      4a.  User Datagram Protocol

         768 - User Datagram Protocol

      4b.  Transmission Control Protocol

         983 - ISO Transport Services on Top of the TCP
         964 - Some Problems with the Specification of the Military
               Standard Transmission Control Protocol
         896 - Congestion Control in IP/TCP Internetworks
         889 - Internet Delay Experiments
         879 - The TCP Maximum Segment Size and Related Topics
         872 - TCP-ON-A-LAN
         817 - Modularity and Efficiency in Protocol Implementation
         816 - Fault Isolation and Recovery
         814 - Name, Addresses, Ports, and Routes
         794 - Pre-Emption
         793, 761, 675 - Transmission Control Protocol
         721 - Out of Band Control Signals in a Host to Host Protocol
         700 - A Protocol Experiment

      4c.  Transaction Protocols and Distributed Operating Systems

         955 - Towards a Transport Service for Transaction Processing
               Applications


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         938 - Internet Reliable Transaction Protocol Functional and
               Interface Specification
         908 - Reliable Data Protocol
         722 - Thoughts on Interactions in Distributed Services
         713 - MSDTP -- Message Services Data Transmission Protocol
         712 - A Distributed Capability Computing System DCCS
         708 - Elements of a Distributed Programming System
         707 - A High-Level Framework for Network-Based Resource Sharing
         684 - A Commentary on Procedure Calling as A Network Protocol
         677 - The Maintenance of Duplicate Databases
         674 - Procedure Call Documents--Version 2
         672 - A Multi-Site Data Collection Facility
         671 - A Note on Reconnection Protocol
         645 - Network Standard Data Specification Syntax
         615 - Proposed Network Standard Data Pathname Syntax
         610 - Further Datalanguage Design Concepts
         592 - Some Thoughts on System Design to Facilitate Resource
               Sharing
         578 - Using MIT-MATHLAB MACSYMA From MIT-DMS Muddle - An
               Experiment in Automated Resource Sharing
         515 - Specifications for Datalanguage, Version 0/9
         500 - The Integration of Data Management Systems on a Computer
               Network
         441 - Inter-Entity Communication - An Experiment
         437 - Data Reconfiguration Service at UCSB
         203 - Achieving Reliable Communication
         076 - Connection-by-Name: User-Oriented Protocol
         062 - A System for Interprocess Communication in a Resource
               Sharing Computer Network
         061 - A Note on Interprocess Communication in a Resource
               Sharing Computer Network
         051 - Proposal for a Network Interchange Language
         031 - Binary Message Forms in Computer Networks
         005 - DEL
         001 - Host Software

      4d.  Other

         998, 969 - NETBLT: A Bulk Data Transfer Protocol
         988 - Host Extensions for IP Multicasting
         979 - PSN End-to-End Functional Specification
         966 - A Multicast Extension to the Internet Protocol
         869 - Host Monitoring Protocol
         741 - Specifications for the Network Voice Protocol NVP
         643 - Cross Net Debugger
         162 - NETBUGGER3





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   5.  Application Level

      5a.  Telnet Protocol

         854, 764 - Telnet Protocol Specification
         818 - The Remote User Telnet Service
         801 - NCP/TCP Transition Plan
         782 - A Virtual Terminal Management Model
         764 - Telnet Protocol Specification
         728 - A Minor Pitfall in the Telnet Protocol
         688 - Tentative Schedule for the New Telnet Implementation for
               the TIP
         681 - Network Unix
         600 - Interfacing an Illinois Plasma Terminal to the ARPANET
         596 - Second Thoughts on Telnet Go-Ahead
         595 - Some Thoughts in Defense of the Telnet Go-Ahead
         593 - Telnet and FTP Implementation Schedule Change
         576 - Proposal for Modifying Linking
         570 - Experimental Input Mapping Between NVT ASCII and UCSB
               Online System
         562 - Modifications to the Telnet Specification
         559 - Comments on the New Telnet Protocol and Its
               Implementation
         529 - A Note on Protocol Synch Sequences
         513 - Comments on the New Telnet Specifications
         495 - Telnet Protocol Specification
         466 - Telnet Logger/Server for Host LL-67
         461 - Telnet Meeting Announcement
         452 - Telnet Command at Host LL
         435 - Telnet Issues
         426 - Reconnection Protocol
         393 - Comments on Telnet Protocol Changes
         377 - Using TSO Via ARPA Network Virtual Terminal
         357 - An Echoing Strategy for Satellite Links
         355, 346 - Satellite Considerations
         340 - Proposed Telnet Changes
         339 - MLTNET - A "Multi-Telnet" Subsystem for TENEX
         328 - Suggested Telnet Protocol Changes
         318 - Ad Hoc Telnet Protocol
         216 - Telnet Access to UCSB's On-Line System
         215 - NCP, ICP, and Telnet: The Terminal IMP Implementation
         206 - A User Telnet Description of an Initial Implementation
         205 - NETCRT - A Character Display Protocol
         190 - DEC PDP-10 - IMLAC Communication System
         158 - Proposed Telnet Protocol
         139 - Discussion of Telnet Protocol
         137 - Telnet Protocol - A Proposed Document
         135, 110 - Conventions for Using an IBM 2741 Terminal as a User
               Console for Access to Network Server Hosts


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         103 - Implementation of Interrupt Keys
         097 - A First Cut at a Proposed Telnet Protocol
         091 - A Proposed User-User Protocol
         015 - Network Subsystem for Time Sharing Hosts

      5b.  Telnet Options

         946 - Telnet Terminal Location Number Option
         933 - Output Marking Telnet Option
         930 - Telnet Terminal Type Option
         927 - TACACS User Identification Telnet Option
         885 - Telnet End of Record Option
         884 - Telnet Terminal Type Option
         861 - Telnet Extended Options - List Option
         860 - Telnet Timing Mark Option
         859 - Telnet Status Option
         858 - Telnet Suppress Go Ahead Option
         857 - Telnet Echo Option
         856 - Telnet Binary Transmission
         855 - Telnet Option Specifications
         854 - Telnet Protocol Specifications
         779 - Telnet Send-Location Option
         749 - Telnet SUPDUP-OUTPUT Option
         748 - Telnet Randomly-Lose Option
         736 - Telnet SUPDUP Option
         735 - Revised Telnet Byte Macro Option
         734 - SUPDUP Protocol
         747 - Recent Extensions to the SUPDUP Protocol
         746 - The SUPDUP Graphics Extension
         732 - Telnet Data Entry Terminal Option
         731 - Telnet Data Entry Terminal Option
         729 - Telnet Byte Macro Option
         727 - Telnet Logout Option
         726 - Remote Controlled Transmission and Echoing Telnet Option
         719 - Discussion on RCTE
         718 - Comments on RCTE from the Tenex Implementation Experience
         703, 702, 701 - Survey of New-Protocol Telnet Servers
         698 - Telnet Extended ASCII Option
         679 - February, 1975, Survey of  New-Protocol Telnet Servers
         669 - November 1974, Survey of New-Protocol Telnet Servers
         659 - Announcing Additional Telnet Options
         658 - Telnet Output Line Feed Disposition
         657 - Telnet Output Vertical Tab Disposition Option
         656 - Telnet Output Vertical Tab Stops Option
         655 - Telnet Output Form Feed Disposition Option
         654 - Telnet Output Horizontal Tab Disposition Option
         653 - Telnet Output Horizontal Tab Stops Option
         652 - Telnet Output Carriage Return Disposition Option
         651 - Revised Telnet Status Option


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         587 - Announcing New Telnet Options
         581 - Corrections to RFC 560 - Remote Controlled Transmission
               and Echoing Telnet Option
         563 - Comments on the RCTE Telnet Option
         560 - Remote Controlled Transmission and Echoing Telnet Option

      5c.  File Transfer Protocol

         987 - Mapping Between X.400 and RFC 822
         959, 542, 354, 265, 172, 114 - The File Transfer Protocol
         949 - FTP Unique-Named Store Command
         913 - Simple File Transfer Protocol
         906 - Bootstrap Loading Using TFTP
         822 - Standard for the Format of ARPA Internet Text Messages
         821, 788 - Simple Mail Transfer Protocol
         783, 768, 764 - The TFTP Protocol Revision 2
         775 - Directory Oriented FTP Commands
         743 - FTP Extension: XRSQ/XRCP
         737 - FTP Extension: XSEN
         697 - CWD Command of FTP
         691 - One More Try on the FTP
         686 - Leaving Well Enough Alone
         683 - FTPSRV -- Tenex Extension for Paged Files
         678 - Document File Format Standards
         662 - Performance Improvement in ARPANET File Transfers from
               Multics
         640 - Revised FTP Reply Codes
         630 - FTP Error Code Usage for More Reliable Mail Service
         624 - Comments on the File Transfer Protocol
         614 - Response to RFC 607 - Comments on the FTP
         607 - NIC-21255 Comments on the File Transfer Protocol
         573 - Data and File Transfer - Some Measurement Results
         571 - Tenex FTP Problem
         535 - Comments on File Access Protocol
         532 - The UCSD-CC Server-FTP Facility
         520 - Memo to FTP Group (Proposal for File Access Protocol)
         506 - An FTP Command Naming Problem
         505 - Two Solutions to a File Transfer Access Problem
         501 - Un-Muddling "Free File Transfer"
         487 - Host-Dependent FTP Parameters
         486 - Data Transfer Revisited
         480 - Host-Dependent FTP Parameters
         479 - Use of FTP by the NIC Journal
         478 - FTP Server-Server Interaction - II
         475 - FTP and the Network Mail System
         468 - FTP Data Compression
         463 - FTP Comments and Response to RFC 430
         458 - Mail Retrieval via FTP



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RFC 1000 - Request for Comments Reference Guide              August 1987


         454 - File Transfer Protocol - Meeting Announcement and a New
               Proposed Document
         448 - Print Files in FTP
         438 - FTP Server-Server Interaction
         430 - Comments on File Transfer Protocol
         418 - Server File Transfer Under TSS/360 at NASA/Ames Research
               Center
         414 - File Transfer Protocols (FTP): Status and Further
               Comments
         412 - User FTP Documentation
         385 - Comments on the File Transfer Protocol (RFC 354)
         310  - Another Look at Data and File Transfer Protocols
         294 - The Use of "Set Data Type" Transaction in the File
               Transfer Protocol
         281 - A Suggested Addition to File Transfer Protocol
         269 - Some Experience with File Transfer
         264, 171 - The Data Transfer Protocol
         250 - Some Thoughts on File Transfer
         242 - Data Descriptive Language for Shared Data
         238 - Comments on DTP and FTP Protocols
         163 - Data Transfer Protocols
         141 - Comments on RFC 114 (A File Transfer Protocol)
         133 - File Transfer and Error Recovery

      5d.  Domain Name System

         974 - Mail Routing and the Domain System
         973 - Domain System Changes and Observations
         953, 811, 810 - HOSTNAME Protocol
         921, 897 - Domain Name System Implementation Schedule
         920 - Domain Requirements
         883 - Domain Names - Implementation and Specification
         882 - Domain Names - Concepts and Facilities
         881 - The Domain Names Plan and Schedule
         830 - A Distributed System for Internet Name Service
         819 - The Domain Naming Convention for Internet User
               Applications
         799 - Internet Name Domains
         756 - The NIC Name Server -- A Datagram-Based Information
               Utility
         752 - A Universal Host Table

      5e.  Mail and Message Systems

         994, 983 - PCMAIL: A Distributed Mail System
         977 - Network News Transfer Protocol
         976 - UUCP Mail Interchange Format Standard
         974 - Mail Routing and the Domain System
         934 - Proposed Standard for Message Encapsulation


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         915 - Network Mail Path Service
         886 - Proposed Standard for Message Header Munging
         850 - Standard for Interchange of USENET Messages
         841 - Specification for Message Format for Computer Based
               Message Systems
         822 - Standard for the Format of ARPA Internet Text Messages
         821 - Simple Mail Transfer Protocol
         806 - Specification for Message Format for Computer Based
               Message Systems
         780, 772 - Mail Transfer Protocol
         786 - Mail Transfer Protocol - ISI TOPS-20 MTP-NIMAIL Interface
         785 - Mail Transfer Protocol - ISI TOPS-20 File Definitions
         784 - Mail Transfer Protocol - ISI TOPS-20 Implementation
         771 - Mail Transition Plan
         763 - Role Mailboxes
         757 - A Suggested Solution to the Naming, Addressing, and
               Delivery Problem for ARPANET Message Systems
         754 - Out-of-Net Host Addresses for Mail
         753 - Internet Message Protocol
         751 - Survey of FTP Mail and MLFL
         733 - Standard for the Format of ARPA Network Text Messages
         724 - Proposed Official Standard for the Format of ARPA Network
               Messages
         720 - Address Specification Syntax for Network Mail
         706 - On the Junk Mail Problem
         680 - Message Transmission Protocol
         644 - On the Problem of Signature Authentication for Network
               Mail
         577 - Mail Priority
         574 - Announcement of a Mail Facility at UCSB
         561 - Standardizing Network Mail Headers
         555 - Responses to Critiques of the Proposed Mail Protocol
         539, 524 - A Proposed Mail Protocol
         498 - On Mail Service to CCN
         491 - What is "Free"?
         475 - On FTP and the Network Mail System
         458 - Mail Retrieval via FTP
         333 - A Proposed Experiment with a Message Switching Protocol
         278, 224, 221, 196 - A Mail Box Protocol

      5f.  Facsimile and Bitmaps

         809 - UCL Facsimile System
         804 - Facsimile Formats
         803 - Dacom 450/500 Facsimile Date Transcoding
         798 - Decoding Facsimile Data From the Rapicom 450
         797 - Bitmap Formats
         769 - Rapicom 450 Facimile File Format



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      5g.  Graphics

         965 - A Format for a Graphical Communication Protocol
         553 - Draft Design for a Text/Graphics Protocol
         493 - Graphics Protocol
         401 - Conversion of NGP-0 Coordinates to Device Specific
               Coordinates
         398 - UCSB Online Graphics
         387 - Some Experiences in Implementing Network Graphics
               Protocol Level 0
         351 - Information Form for the ARPANET Graphics Resources
               Notebook
         336 - Level 0 Graphics Input Protocol
         296 - DS-1 Display System
         292 - Graphics Protocol - Level 0 only
         285 - Network Graphics
         268 - Graphics Facilities Information
         199 - Suggestions for a Network Data-Telnet Graphics Protocol
         192 - Some Factors Which a Network Graphics Protocol Must
               Consider
         191 - Graphics Implementation and Conceptualization at ARC
         186 - A Network Graphics Loader
         184 - Proposed Graphic Display Modes
         181, 177 - A Device Independent Graphical Display Description
         178 - Network Graphics Attention Handling
         125, 086 - Proposal for a Network Standard Format for a Data
               Stream to Control Graphics Display
         094 - Some Thoughts on Network Graphics

      5h.  Data Management

         304 - A Data Management System Proposal for the ARPA Network
         195 - Data Computers - Data Descriptions and Access Language
         194 - The Data Reconfiguration Service - Compiler/Interpreter
               Implementation Notes
         166 - Data Reconfiguration Service - An Implementation
               Specification
         144 - Data Sharing on Computer Networks
         138 - Status Report on Proposed Data Reconfiguration Service
         083 - Language-Machine for Data Reconfiguration

      5i.  Remote Job Entry

         740, 599, 589, 325, 189, 088 - CCN Network Remote Job Entry
               Program - NETRJS
         725 - An RJE Protocol for a Resource Sharing Network
         499 - Harvard's Network RJE
         490 - Surrogate RJS for UCLA-CCN
         477, 436 - Remote Job Service at UCSB


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         407 - Remote Job Entry
         368 - Comments on "Proposed Remote Job Entry Protocol"
         360 - Proposed Remote Job Entry Protocol
         338 - EBCDIC/ASCII Mapping for Network RJE
         307 - Using Network Remote Job Entry
         283 - NETRJT - Remote Job Service Protocol for TIPS
         105 - Network Specification for Remote Job Entry and Remote Job
               Output Retrieval at UCSB

      5j.  Time

         958, 957, 956 - Network Time Protocol
         868 - Time Server Protocol
         867 - Daytime Protocol
         778 - DCNET Time Server Protocol
         738 - Time Server
         685 - Response Time in Cross-network Debugging
         034 - Some Brief Preliminary Notes on the ARC Clock
         032 - Some Thoughts on SRI's Proposed Real Time Clock
         028 - Time Standards

      5k.  Other

         978 - Voice File Interchange Protocol (VFIP)
         972 - Password Generator Protocol
         954, 812 - Whois Protocol
         951 - Bootstrap Protocol
         937, 918 - Post Office Protocol
         931, 912 - Authentication Service
         913 - Simple File Transfer Protocol
         909 - Loader Debugger Protocol
         891 - DCN Local Net Protocol
         887 - Resource Location Protocol
         866 - Active Users Protocol
         865 - Quote of the Day Protocol
         864 - Character Generator Protocol
         863, 361, 348 - Discard Protocol
         862, 361, 347 - Echo Protocol
         821, 822 - Simple Mail Transfer Protocol
         783 - Trivial File Transfer Protocol
         767 - Document Formats
         759 - Internet Message Protocol
         742 - Finger Protocol
         734 - SUPDUP Protocol
         726 - Remote Controlled Transmission and Echoing Telnet Option
         666 - Specification of the Unified User-Level Protocol
         621 - NIC User Directories at SRI-ARC
         569 - Network Standard Text Editor
         470 - Change in Socket for TIP News Facility


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         451 - Tentative Proposal for a Unified User Level Protocol
         098, 079 - Logger Protocol
         029 - Note in Response to Bill English's Request for Comments

   6.  Program Documentation

      6a.  General

         496 - A TNLS Quick Reference Card is Available
         494 - Availability of MIX and MIXAL in the Network
         488 - NLS Classes at Network Sites
         485 - MIS and MIXAL at UCSB
         431 - Update on SMFS Login and Logout
         411 - New Multics Network Software Features
         409 - TENEX Interface to UCSB's Simple-Minded File System
         399 - SMFS Login and Logout
         390 - TSO Scenario Batch Compilation and Foreground Execution
         382 - Mathematical Software on the ARPA Network
         379 - Using TSO at CCN
         373 - Arbitrary Character Sets
         350 - User Accounts for UCSB On-Line System
         345 - Interest Mixed Integer Programming (MPSX on 360/91 at
               CCN)
         321 - CBI Networking Activity at MITRE
         317 - Official Host-Host Protocol Modification: Assigned Link
               Numbers
         311 - New Console Attachments to the UCSB Host
         251 - Weather Data
         223 - Network Information Center Schedule for Network Users
         217 - Specification Changes for OLS, RJE/RJOR, and SMFS
         174 - UCLA-Computer Science Graphics Overview
         122 - Network Specifications for UCSB's Simple-Minded File
               System
         121 - Network On-Line Operators
         120 - Network PL1 Subprograms
         119 - Network FORTRAN Subprograms
         074 - Specifications for Network Use of the UCSB On-Line System

   7.  Network Specific

      7a.  ARPANET

         878, 851, 802 - The ARPANET 1822L Host Access Protocol
         852 - The ARPANET Short Blocking Feature
         789 - Vulnerabilities of Network Control Protocols: An Example
         716 - Interim Revision to Appendix F of BBN 1822
         704 - IMP/Host and Host/IMP Protocol Change
         696 - Comments on the IMP/HOST and HOST/IMP Protocol Changes
         695 - Official Change in Host-Host Protocol


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RFC 1000 - Request for Comments Reference Guide              August 1987


         692 - Comments on IMP/Host Protocol Changes
         690 - Comments on the Proposed Host/IMP Protocol Changes
         687 - IMP/Host and Host/IMP Protocol
         667 - BBN Host Ports
         660 - Some Changes to the IMP and the IMP/Host Interface
         642 - Ready Line Philosophy and Implementation
         638, 633 - IMP/TIP Preventive Maintenance Schedule
         632 - Throughput Degradation for Single Packet Message
         627 - ASCII Text File of Hostnames
         626 - On a possible Lockup Condition in IMP Subnet due to
               Message Sequencing
         625 - On Line Hostnames Service
         623 - Comments on On-line Host Name Service
         622 - Scheduling IMP/TIP Down Time
         620 - Request for Monitor Host Table Updates
         619 - Mean Round-Trip Times in the ARPANET
         613 - Network Connectivity: A Response to RFC 603
         611 - Two Changes to the IMP/Host Protocol
         606 - Host Names On-Line
         594 - Speedup of Host-IMP Interface
         591 - Addition to the Very Distant Host Specification
         568, 567 - Cross-Country Network Bandwidth
         548 - Hosts Using the IMP Going Down Message Specification
         547 - Change to the Very Distant Host Specification
         533 - Message-ID Numbers
         534 - Lost Message Detection
         528 - Software Checksumming in the IMP and Network Reliability
         521 - Restricted Use of IMP DDT
         508 - Real-Time Data Transmission on the ARPANET
         476, 434 - IMP/TIP Memory Retrofit Schedules
         449, 442 - The Current Flow-Control Scheme for IMPSYS
         447, 445 - IMP/TIP Preventive Maintenance Schedule
         417 - LINK Usage Violation
         410 - Removal of the 30-second Delay When Hosts Come Up
         406 - Scheduled IMP Software Releases
         395 - Switch Settings on IMPs and TIPs
         394 - Two Proposed Changes to the IMP-HOST Protocol
         369 - Evaluation of ARPANET Services (January through March,
               1972)
         335 - New Interface-IMP/360
         312 - Proposed Change in IMP-to-Host Protocol
         297 - TIP Message Buffers
         280 - A Draft Set of Host Names
         274 - Establishing a Local Guide for Network Usage
         271 - IMP System Change Notification
         270 - Correction to the BBN Report No. 1822
         263 - "Very Distant" Host Interface
         254 - Scenarios for Using ARPANET Computers
         247 - Proffered Set of Standard Host Names


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RFC 1000 - Request for Comments Reference Guide              August 1987


         241 - Connecting Computers to NLC Ports
         239 - Host Mnemonics Proposed in RFC 226
         237 - The NIC's View of Standard Host Names
         236 - Standard Host Names
         233 - Standardization of Host Call Letters
         230 - Toward Reliable Operation of Minicomputer-based Terminals
               on a TIP
         229 - Standard Host Names
         228 - Clarification
         226 - Standardization of Host Mnemonics
         218 - Changing the IMP Status Reporting
         213 - IMP System Change Notification
         209 - Host/IMP Interface Documentation
         208 - Address Tables
         073, 067 - Proposed Change to Host/IMP Spec to Eliminate
               Marking
         071 - Reallocation in Case of Input Error
         070 - A Note On Padding
         064 - Getting Rid of Marking
         041 - IMP/IMP Teletype Communication
         025 - No High Link Numbers
         019 - Two Protocol Suggestions to Reduce Congestion at
               Swap-Bound Nodes
         017a, 017 - Some Questions Re: HOST-IMP Protocol
         012 - IMP-HOST Interface Flow Diagrams
         007 - HOST-IMP Interface
         006 - Conversation with Bob Kahn

      7b.  Internet Protocol On Networks

         948 - Two Methods for the Transmission of IP Datagrams Over
               IEEE 802.3 Networks
         907 - Host Access Protocol
         903 - A Reverse Address Resolution Protocol
         895 - A Standard for the Transmission of IP Datagrams over
               Experimental Ethernet Networks
         894 - A Standard for the Transmission of IP Datagrams over
               Ethernet Networks
         893 - Trailer Encapsulations
         891 - Internet Protocol on DC Networks
         877 - A Standard for the Transmission of IP Datagrams Over
               Public Data Networks
         826 - Address Resolution Protocol
         796 - Address Mappings
         795 - Service Mappings

      7c.  Host Front End Protocols

         929, 928, 705, 647 - Host-Front End Protocol


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      7d.  Other

         935 - Reliable Link Layer Protocols
         916 - Reliable Asynchronous Transfer Protocol
         914 - Thinwire Protocol
         824 - The Cronus Virtual Local Network

   8.  Measurement

      8a.  General

         573 - Data and File Transfer - Some Measurement Results
         557 - Revelations in Network Host Measurements
         546 - Tenex Load Averages for July 1973
         462 - Responding to User Needs
         415 - TENEX Bandwidth
         392 - Measurement of Host Costs for Transmitting Network Data
         352 - TIP Site Information Form
         308 - ARPANET Host Availability Data
         286 - Network Library Information System
         274 - Establishing a Local Guide for Network Usage
         214, 193 - Network Checkout
         198 - Site Certification - Lincoln Labs
         182 - Compilation of List of Revelant Site Reports
         180 - File System Questionnaire
         156 - Status of the Illinois Site (Response to RFC 116)
         153 - SRI ARC-NIC Status
         152 - SRI Artificial Intelligence Status Report
         126 - Ames Graphics Facilities at Ames Research Center
         112 - User/Server Site Protocol Network HOST Questionnaire
         104 - Link 191
         106 - USER/SERVER Site Protocol Network Host Questionnaire

      8b.  Surveys

         971 - A Survey of Data Representation Standards
         876 - Survey of SMTP Implementations
         848 - Who Provides the "Little" TCP Services?
         847 - Summary of Smallberg Surveys
         844 - Who Talks ICMP, too?  Survey of 18 February 1983
         846, 845, 843, 842, 839, 838, 837, 836, 835, 834, 833, 832 -
               Who Talks TCP?
         787 - Connectionless Data Transmission Survey/Tutorial
         703, 702, 701, 679, 669 - Survey of New-Protocol Telnet Servers
         565 - Storing Network Survey Data at the Datacomputer
         545 - Of What Quality be the UCSB Resource Evaluators?
         530 - A Report on the SURVEY Project
         523 - SURVEY is in Operation Again
         519 - Resource Evaluation


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         514 - Network Make-Work
         464 - Resource Notebook Framework
         460 - NCP Survey
         459 - Network Questionnaire
         450 - Multics Sampling Timeout Change
         446 - Proposal to Consider a Network Program Resource Notebook
         096 - An Interactive Network Experiment to Study Modes of
               Access to the Network Information Center
         090 - CCN as a Network Service Center
         081 - Request for Reference Information
         078 - NCP Status Report: UCSB/Rand

      8c.  Statistics

         996 - Statistics Server
         618 - A Few Observations on NCP Statistics
         612, 601, 586, 579, 566, 556, 538, 522, 509, 497, 482, 455,
               443, 422, 413, 400, 391, 378 - Traffic Statistics
         603, 597, 376, 370, 367, 366, 362, 352, 344, 342, 332, 330,
               326, 319, 315, 306, 298, 293, 288, 287, 267, 266 -
               Network Host Status
         550 - NIC NCP Experiment
         388 - NCP Statistics
         255, 252, 240, 235 - Site Status

   9.  Network Experience and Demonstrations

      9a.  General

         968 - 'Twas the Night Before Start-up
         967 - All Victims Together
         573 - Data and File Transfer - Some Measurement Results
         527 - ARPAWOCKY
         525 - MIT-Mathlab Meets UCSB-OLS
         439 - PARRY Encounters the Doctor
         420 - CCA ICC Weather Demo
         372 - Notes on a Conversation with Bob Kahn on the ICCC
         364 - Serving Remote Users on the ARPANET
         302 - Excercising the ARPANET
         231 - Service Center Standards for Remote Usage - A User's View
         227 - Data Transfer Rates (RAND/UCLA)
         113 - Network Activity Report: UCSB and Rand
         089 - Some Historic Moments in Networking
         004 - Network Timetable







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   10. Site Documentation

      10a.  General

         30, 27, 24, 16, 10, 3 - Documentation Conventions

   11. Other Standards

      11a.  ANSI

         570 - Experimental Input Mapping Between NVT ASCII and UCSB
               Online System
         183 - The EBCDIC Codes and Their Mapping to ASCII
         020 - ASCII Format for Network Interchange

      11b.  CCITT

         987 - Mapping Between X.400 and RFC 822
         874 - A Critique of X.25

      11c.  NRC

         942 - Transport Protocols for Department of Defense Data
               Networks
         939 - Executive Summary of the NRC Report on Transport
               Protocols for Department of Defense Data Networks

      11d.  ISO

         995 - End System to Intermediate System Routing Exchange
               Protocol for Use in Conjunction with ISO 8473
         994 - Final Text of DIS 8473, Protocol for Providing the
               Connectionless Mode Network Service
         982 - Guidelines for the Specification of the Structure of the
               Domain Specific Part (DSP) of the ISO Standard NSAP
               Address
         941 - Addendum to the Network Service Definition Covering
               Network Layer Addressing
         926 - Protocol for Providing the Connectionless-Mode Network
               Services
         905 - ISO Transport Protocol Specification (ISO DP 8073)
         892 - ISO Transport Protocol
         873 - The Illusion of Vendor Support








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   12. Never Issued

      12a.  Never Issued

         014, 026, 092, 159, 201, 220, 244, 248, 257, 258, 259, 260,
         261, 262, 272, 275, 277, 279, 284, 337, 341, 358, 375, 380,
         383, 397, 424, 427, 428, 444, 465, 481, 484, 502, 507, 517,
         536, 540, 541, 554, 558, 564, 572, 575, 583, 605, 639, 641,
         646, 648, 649, 650, 664, 665, 668, 670, 673, 676, 682, 693,
         709, 710, 711, 715, 723, 853.









































Reynolds & Postel                                              [Page 25]
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REQUEST FOR COMMENTS LIST WITH ABSTRACTS

   RFC     Author       Date        Title
   ---     ------       ----        -----

   999     Westine      Mar 87      Requests For Comments Summary

      A summary of the Request for Comments Documents from RFC 900-999.

   998     Lambert      Mar 87      NETBLT:  A Bulk Data Transfer
                                    Protocol

      This document is a description of and a specification for the
      NETBLT protocol.  It is a revision of the specification published
      in RFC-969.  NETBLT (NETwork BLock Transfer) is a transport level
      protocol intended for the rapid transfer of a large quantity of
      data between computers.  It provides a transfer that is reliable
      and flow controlled, and is designed to provide maximum throughput
      over a wide variety of networks.  Although NETBLT currently runs
      on top of the Internet Protocol (IP), it should be able to operate
      on top of any datagram protocol similar in function to IP.

      This document is published for discussion and comment, and does
      not constitute a standard.  The proposal may change and certain
      parts of the protocol have not yet been specified; implementation
      of this document is therefore not advised.

   997     Reynolds     Mar 87      Internet Numbers

      This memo is an official status report on the network numbers used
      in the Internet community.  As of 1-Mar-87 the Network Information
      Center (NIC) at SRI International has assumed responsibility for
      assignment of Network Numbers and Autonomous System Numbers.  This
      RFC documents the current assignments of these numbers at the time
      of this transfer of responsibility.

   996     Mills        Feb 87      Statistics Server

      This RFC specifies a standard for the ARPA Internet community.
      Hosts and gateways on the DARPA Internet that choose to implement
      a remote statistics monitoring facility may use this protocol to
      send statistics data upon request to a monitoring center or
      debugging host.

   995     ANSI         Apr 86      End System to Intermediate System
                                    Routing Exchange Protocol for use in
                                    conjunction with ISO 8473.

      This Protocol is one of a set of International Standards produced


Reynolds & Postel                                              [Page 26]
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      to facilitate the interconnection of open systems.  The set of
      standards covers the services and protocols required to achieve
      such interconnection.

      This Protocol is positioned with respect to other related
      standards by the layers defined in the Reference Model for Open
      Systems Interconnection (ISO 7498) and by the structure defined in
      the Internal Organization of the Network Layer (DIS 8648).  In
      particular, it is a protocol of the Network Layer.  This Protocol
      permits End Systems and Intermediate Systems to exchange
      configuration and routing information to facilitate the operation
      of the routing and relaying functions of the Network Layer.

   994     ANSI         Mar 86      Final Text of DIS 8473, Protocol for
                                    Providing the Connectionless Mode
                                    Network Service

      This Protocol Standard is one of a set of International Standards
      produced to facilitate the interconnection of open systems.  The
      set of standards covers the services and protocols required to
      achieve such interconnection.

      This Protocol Standard is positioned with respect to other related
      standards by the layers defined in the Reference Model for Open
      Systems Interconnection (ISO 7498).  In particular, it is a
      protocol of the Network Layer.  This Protocol may be used between
      network-entities in end systems or in Network Layer relay systems
      (or both).  It provides the Connectionless-mode Network Service as
      defined in Addendum 1 to the Network Service Definition Covering
      Connectionless-mode Transmission (ISO 8348/AD1).

   993     Clark        Dec 86      PCMAIL:  A Distributed Mail System
                                    for Personal Computers

      This document is a discussion of the PCMAIL workstation-based
      distributed mail system.  It is a revision of the design published
      in NIC RFC 984.  The revision is based on discussion and comments
      from a variety of sources, as well as further research into the
      design of interactive PCMAIL clients and the use of client code on
      machines other than IBM PCs.  As this design may change,
      implementation of this document is not advised.

   992     Birman       Nov 86      On Communication Support for
                                    Fault-Tolerant Process Groups

      This memo describes a collection of multicast communication
      primitives integrated with a mechanism for handling process
      failure and recovery.  These primitives facilitate the
      implementation of fault-tolerant process groups, which can be used


Reynolds & Postel                                              [Page 27]
RFC 1000 - Request for Comments Reference Guide              August 1987


      to provide distributed services in an environment subject to
      non-malicious crash failures.

      Here, we argue that the form of "best effort" reliability provided
      by host groups may not address the requirements of those
      researchers who are building fault tolerant software.  Our basic
      premise is that reliable handling of failures, recoveries, and
      dynamic process migration are important aspects of programming in
      distributed environments, and that communication support that
      provides unpredictable behavior in the presence of such events
      places an unacceptable burden of complexity on higher level
      application software.  This complexity does not arise when using
      the fault-tolerant process group alternative.

   991     Reynolds     Nov 86      Official ARPA-Internet Protocols

      This RFC identifies the documents specifying the official
      protocols used in the Internet.  Comments indicate any revisions
      or changes planned.  This memo is an official status report on the
      numbers used in protocols in the ARPA-Internet community.  This
      memo obsoletes RFCs 961, 944, 924, 901, 880, 840, 694, 661, 617,
      582, 580, 552.

   990     Reynolds     Nov 86      Assigned Numbers

      This Network Working Group Request for Comments documents the
      currently assigned values from several series of numbers used in
      network protocol implementations.  This memo is an official status
      report on the numbers used in protocols in the ARPA-Internet
      community.  This memo obsoletes RFCs 960, 943, 923, 900, 870, 820,
      790, 776, 770, 762, 758, 755, 750, 739, 717, 604, 503, 433, 349,
      322, 317, 204, 179, 175, 167.

   989     Linn         Feb 87      Privacy Enhancement for Internet
                                    Electronic Mail:  Part I:  Message
                                    Encipherment and Authentication
                                    Procedures

      This RFC suggests a proposed protocol for the Internet community
      and requests discussion and suggestions for improvements.  This
      RFC is the outgrowth of a series of IAB Privacy Task Force
      meetings and of internal working papers distributed for those
      meetings.  This RFC defines message encipherment and
      authentication procedures, as the initial phase of an effort to
      provide privacy enhancement services for electronic mail transfer
      in the Internet.  It is intended that the procedures defined here
      be compatible with a wide range of key management approaches,
      including both conventional (symmetric) and public-key
      (asymmetric) approaches for encryption of data encrypting keys.


Reynolds & Postel                                              [Page 28]
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      Use of conventional cryptography for message text encryption
      and/or authentication is anticipated.

      Privacy enhancement services (confidentiality, authentication, and
      message integrity assurance) are offered through the use of
      end-to- end cryptography between originator and recipient User
      Agent processes, with no special processing requirements imposed
      on the Message Transfer System at endpoints or at intermediate
      relay sites. This approach allows privacy enhancement facilities
      to be incorporated on a site-by-site or user-by-user basis without
      impact on other Internet entities.  Interoperability among
      heterogeneous components and mail transport facilities is
      supported.

   988     Deering      Jul 86      Host Extensions for IP Multicasting

      This memo specifies the extensions required of a host
      implementation of the Internet Protocol (IP) to support
      internetwork multicasting.  This specification supersedes that
      given in RFC 966, and constitutes a proposed protocol standard for
      IP multicasting in the ARPA-Internet.  The reader is directed to
      RFC 966 for a discussion of the motivation and rationale behind
      the multicasting extension specified here.

   987     Kille        Jun 86      Mapping Between X.400 and RFC 822

      The X.400 series of protocols have been defined by CCITT to
      provide an Interpersonal Messaging Service (IPMS), making use of a
      store and forward Message Transfer Service.  It is expected that
      this standard will be implemented very widely.  This document
      describes a set of mappings which will enable interworking between
      systems operating the X.400 protocols and systems using RFC 822
      mail protocol or protocols derived from RFC 822.  This RFC
      suggests a proposed protocol for the ARPA-Internet community, and
      requests discussion and suggestions for improvements.

   986     Callon       Jun 86      Working Draft -- Guidelines for the
                                    Use of Internet-IP addressing in the
                                    ISO Connectionless-Mode Network
                                    Protocol

      This RFC suggests a method to allow the existing IP addressing,
      including the IP protocol field, to be used for the ISO
      Connectionless Network Protocol (CLNP).  This is a draft solution
      to one of the problems inherent in the use of "ISO-grams" in the
      DoD Internet.  Related issues will be discussed in subsequent
      RFCs.  This RFC suggests a proposed protocol for the ARPA-Internet
      community, and requests discussion and suggestions for
      improvements.


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   985     Mills        May 86      Requirements for Internet Gateways

      This RFC summarizes the requirements for gateways to be used on
      networks supporting the DARPA Internet protocols.  While it
      applies specifically to the National Science Foundation research
      programs, the requirements are stated in a general context and are
      believed applicable throughout the Internet community.  The
      purpose of this document is to present guidance for vendors
      offering products that might be used or adapted for use in an
      Internet application.  It enumerates the protocols required and
      gives references to RFCs and other documents describing the
      current specification.  Suggestions and comments on this document
      are welcomed and can be sent to Dave Mills (Mills@D.ISI.EDU) or
      Dave Farber (Farber@HUEY.UDEL.EDU).

   984     Clark        May 86      PCMAIL: A Distributed Mail System
                                    for Personal Computers

      This document is a preliminary discussion of the design of a
      personal-computer-based distributed mail system.  Pcmail is a
      distributed mail system that provides mail service to an arbitrary
      number of users, each of which owns one or more personal computers
      (PCs).  The system is divided into two halves.  The first consists
      of a single entity called the "repository".  The repository is a
      storage center for incoming mail.  Mail for a Pcmail user can
      arrive externally from the Internet or internally from other
      repository users.  The repository also maintains a stable copy of
      each user's mail state.  The repository is therefore typically a
      computer with a large amount of disk storage. It is published for
      discussion and comment, and does not constitute a standard.  As
      the proposal may change, implementation of this document is not
      advised.

   983     Cass         Apr 86      ISO Transport Services on Top of the
                                    TCP

      This memo describes a proposed protocol standard for the
      ARPA-Internet community.  The CCITT and the ISO have defined
      various session, presentation, and application recommendations
      which have been adopted by the international community and
      numerous vendors.  To the largest extent possible, it is desirable
      to offer these higher level services directly to the
      ARPA-Internet, without disrupting existing facilities.  This
      permits users to develop expertise with ISO and CCITT applications
      which previously were not available in the ARPA-Internet.  The
      intention is that hosts within the ARPA-Internet that choose to
      implement ISO TSAP services on top of the TCP be expected to adopt
      and implement this standard.  Suggestions for improvement are
      encouraged.


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   982     ANSI         Apr 86      Guidelines for the Specification of
                                    the Structure of the Domain Specific
                                    Part (DSP) of the ISO Standard NSAP
                                    Address

      This RFC is a draft working document of the ANSI "Guidelines for
      the Specification of the Structure of the Domain Specific Part
      (DSP) of the ISO Standard NSAP Address".  It provides guidance to
      private address administration authorities on preferred formats
      and semantics for the Domain Specific Part (DSP) of an NSAP
      address.  This RFC specifies the way in which the DSP may be
      constructed so as to facilitate efficient address assignment.
      This RFC is for informational purposes only and its distribution
      is unlimited and does not specify a standard of the ARPA-Internet.

   981     Mills        Mar 86      An Experimental Multiple-Path
                                    Routing Algorithm

      This document introduces wiretap algorithms, a class of
      experimental, multiple routing algorithms that compute
      quasi-optimum routes for stations sharing a packet-radio broadcast
      channel.  The primary route (a minimum-distance path), and
      additional paths ordered by distance, which serve as alternate
      routes should the primary route fail, are computed.  This
      prototype is presented as an example of a class of routing
      algorithms and data-base management techniques that may find wider
      application in the Internet community.  Discussions and
      suggestions for improvements are welcomed.

   980     Jacobsen     Mar 86      Protocol Document Order Information

      This RFC indicates how to obtain various protocol documents used
      in the DARPA research community.  Included is an overview of the
      new 1985 DDN Protocol Handbook and available sources for obtaining
      related documents (such as DOD, ISO, and CCITT).

   979     Malis        Mar 86      PSN End-to-End Functional
                                    Specification

      This memo is an updated version of BBN Report 5775, "End-to-End
      Functional Specification".  It describes important changes to the
      functionality of the interface between a host and the PSN (Packet
      Switch Node), and should be carefully reviewed by anyone involved
      in supporting a host on either the ARPANET or MILNET.  The new
      End-to-End Protocol (EE) is being developed in order to correct a
      number of deficiencies in the old End-to-End Protocol, to improve
      its performance and overall throughput, and to better equip the
      Packet Switch Node (also known as the IMP) to support its current
      and anticipated host population.


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   978     Reynolds     Feb 86      Voice File Interchange Protocol
                                    (VFIP)

      The purpose of the Voice File Interchange Protocol (VFIP) is to
      permit the interchange of various types of speech files between
      different systems in the ARPA-Internet community.  Suggestions for
      improvement are encouraged.

   977     Kantor       Feb 86      Network News Transfer Protocol

      NNTP specifies a protocol for the distribution, inquiry,
      retrieval, and posting of news articles using a reliable
      stream-based transmission of news among the ARPA-Internet
      community.  NNTP is designed so that news articles are stored in a
      central database allowing a subscriber to select only those items
      he wishes to read.  Indexing, cross-referencing, and expiration of
      aged messages are also provided. This RFC suggests a proposed
      protocol for the ARPA-Internet community, and requests discussion
      and suggestions for improvements.

   976     Horton       Feb 86      UUCP Mail Interchange Format
                                    Standard

      This document defines the standard format for the transmission of
      mail messages between computers in the UUCP Project.  It does not
      however, address the format for storage of messages on one
      machine, nor the lower level transport mechanisms used to get the
      date from one machine to the next.  It represents a standard for
      conformance by hosts in the UUCP zone.

   975     Mills        Feb 86      Autonomous Confederations

      This RFC proposes enhancements to the Exterior Gateway Protocol
      (EGP) to support a simple, multiple-level routing capability while
      preserving the robustness features of the current EGP model.  The
      enhancements generalize the concept of core system to include
      multiple communities of autonomous systems, called autonomous
      confederations.  Discussion and suggestions for improvement are
      requested.

   974     Partridge    Jan 86      Mail Routing and the Domain System

      This RFC presents a description of how mail systems on the
      Internet are expected to route messages based on information from
      the domain system.  This involves a discussion of how mailers
      interpret MX RRs, which are used for message routing.





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   973     Mockapetris  Jan 86      Domain System Changes and
                                    Observations

      This RFC documents updates to Domain Name System specifications
      RFC-882 and RFC-883, suggests some operational guidelines, and
      discusses some experiences and problem areas in the present
      system.

   972     Wancho       Jan 86      Password Generator Protocol

      This RFC specifies a standard for the ARPA-Internet community.
      The Password Generator Service (PWDGEN) provides a set of six
      randomly generated eight-character "words" with a reasonable level
      of pronounceability, using a multi-level algorithm.  Hosts on the
      ARPA-Internet that choose to implement a password generator
      service are expected to adopt and implement this standard.

   971     DeSchon      Dec 85      A Survey of Data Representation
                                    Standards

      This RFC is a comparison of several data representation standards
      that are currently in use.  The standards discussed are the CCITT
      X.409 recommendation, the NBS Computer Based Message System (CBMS)
      standard, DARPA Multimedia Mail system, the Courier remote
      procedure call protocol, and the SUN Remote Procedure Call
      package.  No proposals in this document are intended as standards
      for the ARPA-Internet at this time.  Rather, it is hoped that a
      general consensus will emerge as to the appropriate approach to a
      data representation standard, leading eventually to the adoption
      of an ARPA-Internet standard.

   970     Nagle        Dec 85      On Packet Switches With Infinite
                                    Storage

      The purpose of this RFC is to focus discussion on a particular
      problem in the ARPA-Internet and possible methods of solution.
      Most prior work on congestion in datagram systems focuses on
      buffer management.  In this memo, the case of a packet switch with
      infinite storage is considered.  Such a packet switch can never
      run out of buffers.  It can, however, still become congested.  The
      meaning of congestion in an infinite-storage system is explored.
      An unexpected result is found that shows a datagram network with
      infinite storage, first-in-first-out queuing, at least two packet
      switches, and a finite packet lifetime will, under overload, drop
      all packets.  By attacking the problem of congestion for the
      infinite-storage case, new solutions applicable to switches with
      finite storage may be found.  No proposed solutions this document
      are intended as standards for the ARPA-Internet at this time.



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   969     Clark        Dec 85      NETBLT: A Bulk Data Transfer
                                    Protocol

      This RFC has been replaced by RFC 998.  This is a preliminary
      discussion of the Network Block Transfer (NETBLT) protocol.
      NETBLT is intended for the rapid transfer of a large quantity of
      data between computers.  It provides a transfer that is reliable
      and flow controlled, and is structured to provide maximum
      throughput over a wide variety of networks.  This description is
      published for discussion and comment, and does not constitute a
      standard.  As the proposal may change, implementation of this
      document is not advised.

   968     Cerf         Dec 85      'Twas the Night Before Start-up'

      This memo discusses problems that arise and debugging techniques
      used in bringing a new network into operation.

   967     Padlipsky    Dec 85      All Victims Together

      This RFC proposes a new set of RFCs on how the networking code is
      integrated with various operating systems.  It appears that this
      topic has not received enough exposure in the literature. Comments
      and suggestions are encouraged.

   966     Deering      Dec 85      A Multicast Extension to the
                                    Internet Protocol

      This RFC defines a model of service for Internet multicasting and
      proposes an extension to the Internet Protocol (IP) to support
      such a multicast service.  Discussion and suggestions for
      improvements are requested.

   965     Aguilar      Dec 85      A Format for a Graphical
                                    Communication Protocol

      This RFC describes the requirements for a graphical format on
      which to base a graphical on-line communication protocol, and
      proposes an Interactive Graphical Communication Format using the
      GKSM session metafile.  We hope this contribution will encourage
      the discussion of multimedia data exchange and the proposal of
      solutions.

   964     Sidhu        Nov 85      Some Problems with the Specification
                                    of the Military Standard
                                    Transmission Control Protocol

      The purpose of this RFC is to provide helpful information on the
      Military Standard Transmission Control Protocol (MIL-STD-1778) so


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      that one can obtain a reliable implementation of this protocol
      standard.  This note points out three errors with this
      specification.  This note also proposes solutions to these
      problems.

   963     Sidhu        Nov 85      Some Problems with the Specification
                                    of the Military Standard Internet
                                    Protocol

      The purpose of this RFC is to provide helpful information on the
      Military Standard Internet Protocol (MIL-STD-1777) so that one can
      obtain a reliable implementation of this protocol.  This paper
      points out several problems in this specification.  This note also
      proposes solutions to these problems.

   962     Padlipsky    Nov 85      TCP-4 Prime

      This memo is in response to Bob Braden's call for a transaction
      oriented protocol (RFC-955), and continues the discussion of a
      possible transaction oriented transport protocol.  This memo does
      not propose a standard.

   961     Reynolds     Dec 85      Official ARPA-Internet Protocols

      This RFC has been replaced by RFC 991.

   960     Reynolds     Dec 85      Assigned Numbers

      This RFC has been replaced by RFCs 997 and 990.

   959     Postel       Oct 85      File Transfer Protocol (FTP)

      This memo is the official specification of the File Transfer
      Protocol (FTP) for the DARPA-Internet community.  The primary
      intent is to clarify and correct the documentation of the FTP
      specification, not to change the protocol.  The following new
      optional commands are included in this edition of the
      specification:  Change to Parent Directory (CDUP), Structure Mount
      (SMNT), Store Unique (STOU), Remove Directory (RMD), Make
      Directory (MKD), Print Directory (PWD), and System (SYST).  Note
      that this specification is compatible with the previous edition.

   958     Mills        Sep 85      Network Time Protocol (NTP)

      This document describes the Network Time Protocol (NTP), a
      protocol for synchronizing a set of network clocks using a set of
      distributed clients and servers.  NTP is built on the User
      Datagram Protocol (UDP), which provides a connectionless transport
      mechanism.  It evolved from the Time Protocol and the ICMP


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      Timestamp message and is a suitable replacement for both.  This
      RFC suggests a proposed protocol for the ARPA-Internet community,
      and requests discussion and suggestions for improvements.

   957     Mills        Sep 85      Experiments in Network Clock
                                    Synchronization

      This RFC discusses some experiments in clock synchronization in
      the ARPA-Internet community, and requests discussion and
      suggestions for improvements.  One of the services frequently
      neglected in computer network design is a high-quality,
      time-of-day clock capable of generating accurate timestamps with
      small errors compared to one-way network delays.  Such a service
      would be useful for tracing the progress of complex transactions,
      synchronizing cached data bases, monitoring network performance
      and isolating problems.  In this memo, one such clock service
      design will be described and its performance assessed.  This
      design has been incorporated as an integral part of the network
      routing and control protocols of the Distributed Computer Network
      (DCnet) architecture.

   956     Mills        Sep 85      Algorithms for Synchronizing Network
                                    Clocks

      This RFC discussed clock synchronization algorithms for the
      ARPA-Internet community, and requests discussion and suggestions
      for improvements.  The recent interest within the Internet
      community in determining accurate time from a set of mutually
      suspicious network clocks has been prompted by several occasions
      in which errors were found in usually reliable, accurate clock
      servers after thunderstorms which disrupted their power supply.
      To these sources of error should be added those due to
      malfunctioning hardware, defective software and operator mistakes,
      as well as random errors in the mechanism used to set and
      synchronize clocks.  This report suggests a stochastic model and
      algorithms for computing a good estimator from time-offset samples
      measured between clocks connected via network links.  Included in
      this report are descriptions of certain experiments which give an
      indication of the effectiveness of the algorithms.

   955     Braden       Sep 85      Towards a Transport Service for
                                    Transaction Processing Applications

      The DoD Internet Protocol Suite includes two alternative transport
      service protocols, TCP and UDP, which provide virtual circuit and
      datagram service, respectively.  These two protocols represent
      points in the space of possible transport service attributes which
      are quite "far apart".  We want to examine an important class of
      applications, those which perform what is often called


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      "transaction processing".  We will see that the communication
      needs for these applications fall into the gap "between" TCP and
      UDP -- neither protocol is very appropriate.

   954     Harrenstien  Oct 85      NICNAME/WHOIS

      This RFC is the official specification of the NICNAME/WHOIS
      protocol. This memo describes the protocol and the service.  This
      is an update of RFC 812.  Obsoletes RFC 812.

   953     Harrenstien  Oct 85      Hostname Server

      This RFC is the official specification of the Hostname Server
      Protocol.  This edition of the specification includes minor
      revisions to RFC 811 which brings it up to date.  Obsoletes RFC
      811.

   952     Harrenstien  Oct 85      DoD Internet Host Table
                                    Specification

      This RFC is the official specification of the format of the
      Internet Host Table.  This edition of the specification includes
      minor revisions to RFC 810 which brings it up to date. Obsoletes
      RFCs 810, 608.

   951     Croft        Sep 85      Bootstrap Protocol (BOOTP)

      This RFC describes an IP/UDP bootstrap protocol (BOOTP) which
      allows a diskless client machine to discover its own IP address,
      the address of a server host, and the name of a file to be loaded
      into memory and executed.  The bootstrap operation can be thought
      of as consisting of TWO PHASES.  This RFC describes the first
      phase, which could be labeled `address determination and bootfile
      selection'.  After this address and filename information is
      obtained, control passes to the second phase of the bootstrap
      where a file transfer occurs.  The file transfer will typically
      use the TFTP protocol, since it is intended that both phases
      reside in PROM on the client.  However BOOTP could also work with
      other protocols such as SFTP or FTP.  This RFC suggests a proposed
      protocol for the ARPA-Internet community, and requests discussion
      and suggestions for improvements.

   950     Mogul        Aug 85      Internet Standard Subnetting
                                    Procedure

      This memo discusses the utility of "subnets" of Internet networks,
      which are logically visible sub-sections of a single Internet
      network.  For administrative or technical reasons, many
      organizations have chosen to divide one Internet network into


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      several subnets, instead of acquiring a set of Internet network
      numbers.  This memo specifies procedures for the use of subnets.
      These procedures are for hosts (e.g., workstations).  The
      procedures used in and between subnet gateways are not fully
      described.  Important motivation and background information for a
      subnetting standard is provided in RFC-940.  This RFC specifies a
      protocol for the ARPA-Internet community.  If subnetting is
      implemented it is strongly recommended that these procedures be
      followed.

   949     Padlipsky    Jul 85      FTP Unique-Named Store Command

      There are various contexts in which it would be desirable to have
      an FTP command that had the effect of the present STOR but rather
      than requiring the sender to specify a file name istead caused the
      resultant file to have a unique name relative to the current
      directory.

      This RFC proposes an extension to the File Transfer Protocol for
      the ARPA-Internet community, and requests discussion and
      suggestions for improvements.

   948     Winston      Jun 85      Two Methods for the Transmission of
                                    IP Datagrams Over IEEE 802.3
                                    Networks

      This memo describes two methods of encapsulating Internet Protocol
      (IP) datagrams on an IEEE 802.3 network.

   947     Lebowitz     Jun 85      Multi-Network Broadcasting Within
                                    the Internet

      This RFC describes the extension of a network's broadcast domain
      to include more than one physical network through the use of a
      broadcast packet repeater.

   946     Nedved       May 85      Telnet Terminal Location Number
                                    Option

      Many systems provide a mechanism for finding out where a user is
      logged in from usually including information about telephone
      extension and office occupants names.  The information is useful
      for physically locating people and/or calling them on the phone.
      In 1982 CMU designed and implemented a terminal location database
      and modified existing network software to handle a 64-bit number
      called the Terminal Location Number (or TTYLOC).  It now seems
      appropriate to incorporate this mechanism into the TCP-based
      network protocol family.  The mechanism is not viewed as a
      replacement for the Terminal Location Telnet Option


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      (SEND-LOCATION) but as a shorthand mechansim for communicating
      terminal location information between hosts in a localized
      community.  This RFC proposes a new option for Telnet for the
      ARPA-Internet community, and requests discussion and suggestions
      for improvements.

   945     Postel       May 85      A DoD Statement on the NRC Report

      In May 1983, the National Research Council (NRC) was asked jointly
      by the DoD and NBS to study the issues and recommend a course of
      action.  The final report of the NRC committee was published in
      February 1985 (see RFC-942). The enclosed letter is from Donald C.
      Latham (ASDC3I) to DCA transmitting the NRC report and requesting
      specific actions relative to the recommendations of the report.

      This RFC reproduces a letter from the Assistant Secretary of
      Defense for Command, Control, Communications, and Intelligence
      (ASDC3I) to the Director of the Defense Communications Agency
      (DCA).  This letter is distributed for information only.

   944     Reynolds     Apr 85      Official ARPA-Internet Protocols

      This RFC has been replaced by RFC 991.

   943     Reynolds     Apr 85      Assigned Numbers

      This RFC has been replaced by RFCs 997 and 990.

   942     NRC          Feb 85      Transport Protocols for Department
                                    of Defense Data Networks

      This RFC reproduces the National Research Council report resulting
      from a study of the DoD Internet Protocol (IP) and Transmission
      Control Protocol (TCP) in comparison with the ISO Internet
      Protocol (ISO-IP) and Transport Protocol level 4 (TP-4).

   941     ISO          Apr 85      Addendum to the Network Service
                                    Definition Covering Network Layer
                                    Addressing

      This Addendum to the Network Service Definition Standard, ISO
      8348, defines the abstract syntax and semantics of the Network
      Address (Network Service Access Point Address).  The Network
      Address defined in this Addendum is the address that appears in
      the primitives of the connection-mode Network Service as the
      calling address, called address, and responding address
      parameters, and in the primitives of the connectionless-mode
      Network  Service  as  the source address and destination address
      parameters.


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      This document is distributed as an RFC for information only.  It
      does not specify a standard for the ARPA-Internet.

   940     GADS         Apr 85      Toward an Internet Standard Scheme
                                    for Subnetting

      Several sites now contain a complex of local links connected to
      the Internet via a gateway.  The details of the internal
      connectivity are of little interest to the rest of the Internet.
      One way of organizing these local complexes of links is to use the
      same strategy as the Internet uses to organize networks, that is,
      to declare each link to be an entity (like a network) and to
      interconnect the links with devices that perform routing functions
      (like gateways).  This general scheme is called subnetting, the
      individual links are called subnets, and the connecting devices
      are called subgateways (or bridges, or gateways).  This RFC
      discusses standardizing the protocol used in subnetted
      environments in the ARPA-Internet.  Distribution of this memo is
      unlimited.  The author of this RFC is the Gateway Algorithms and
      Data Structures (GADS) Task Force, chaired by David L. Mills.

   939     NRC          Feb 85      Executive Summary of the NRC Report
                                    on Transport Protocols for
                                    Department of Defense Data Networks

      This RFC reproduces the material from the "front pages" of the
      National Research Council report resulting from a study of the DOD
      Internet Protocol (IP) and Transmission Control Protocol (TCP) in
      comparison with the ISO Internet Protocol (ISO-IP) and Transport
      Protocol level 4 (TP-4).  The point of this RFC is to make the
      text of the Executive Summary widely available in a timely way.
      The order of presentation has been altered, and the pagination
      changed.

   938     Miller       Feb 85      Internet Reliable Transaction
                                    Protocol Functional and Interface
                                    Specification

      This RFC is being distributed to members of the DARPA research
      community in order to solicit their reactions to the proposals
      contained in it.  While the issues discussed may not be directly
      relevant to the research problems of the DARPA community, they may
      be interesting to a number of researchers and implementors.  This
      RFC suggests a proposed protocol for the ARPA-Internet community,
      and requests discussion and suggestions for improvements.






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   937     Reynolds     Feb 85      Post Office Protocol - Version 2

      This RFC suggests a simple method for workstations to dynamically
      access mail from a mailbox server.  This RFC specifies a proposed
      protocol for the ARPA-Internet community, and requests discussion
      and suggestions for improvement.  This memo is a revision of
      RFC 918.

   936     Karels       Feb 85      Another Internet Subnet Addressing
                                    Scheme

      There have been several proposals for schemes to allow the use of
      a single Internet network number to refer to a collection of
      physical networks under common administration which are reachable
      from the rest of the Internet by a common route.  Such schemes
      allow a simplified view of an otherwise complicated topology from
      hosts and gateways outside of this collection.  They allow the
      complexity of the number and  type of these networks, and routing
      to them, to be localized.  Additions and changes in configuration
      thus cause no detectable change, and no interruption of service,
      due to slow propagation of routing and other information outside
      of the local environment.  These schemes also simplify the
      administration of the network, as changes do not require
      allocation of new network numbers for each new cable installed.
      This proposal discusses an alternative scheme, one that has been
      in use at the University of California, Berkeley since April 1984.
      This RFC suggests a proposed protocol for the ARPA-Internet
      community, and requests discussion and suggestions for
      improvements.

   935     Robinson     Jan 85      Reliable Link Layer Protocols

      This RFC discusses protocols proposed recently in RFCs 914 and
      916, and suggests a proposed protocol that could meet the same
      needs addressed in those memos.  The stated need is reliable
      communication between two programs over a full-duplex,
      point-to-point communication link, and in particular the RFCs
      address the need for such communication over an asynchronous link
      at relatively low speeds. The suggested protocol uses the methods
      of existing national and international data link layer standards.
      This RFC suggests a proposed protocol for the ARPA-Internet
      community, and requests discussion and suggestions for
      improvements.

   934     Rose         Jan 85      Proposed Standard for Message
                                    Encapsulation

      This memo concerns itself with message forwarding.  Forwarding can
      be thought of as encapsulating one or more messages inside


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      another. Although this is useful for transfer of past
      correspondence to new recipients, without a decapsulation process
      (which this memo terms "bursting"), the forwarded messages are of
      little use to the recipients because they can not be distributed,
      forwarded, replied-to, or otherwise processed as separate
      individual messages. In order to burst a message it is necessary
      to know how the component messages were encapsulated in the draft.
      At present there is no unambiguous standard for interest group
      digests.  This RFC proposes a proposed protocol for the
      ARPA-Internet community, and requests discussion and suggestions
      for improvements.

   933     Silverman    Jan 85      Output Marking Telnet Option

      This proposed option would allow a Server-Telnet to send a banner
      to a User-Telnet so that this banner would be displayed on the
      workstation screen independently of the application software
      running in the Server-Telnet.

   932     Clark        Jan 85      A Subnetwork Addressing Scheme

      This RFC proposes an alternative addressing scheme for subnets
      which, in most cases, requires no modification to host software
      whatsoever.  The drawbacks of this scheme are that the total
      number of subnets in any one network are limited, and that
      modification is required to all gateways.

   931     StJohns      Jan 85      Authentication Server

      This RFC suggests a proposed protocol for the ARPA-Internet
      community, and requests discussion and suggestions for
      improvements.  This is the second draft of this proposal
      (superseding RFC 912) and incorporates a more formal description
      of the syntax for the request and response dialog, as well as a
      change to specify the type of user identification returned.

   930     Solomon      Jan 85      Telnet Terminal Type Option

      This RFC specifies a standard for the ARPA-Internet community.
      Hosts on the ARPA-Internet that exchange terminal type information
      within the Telnet protocol are expected to adopt and implement
      this standard.  Distribution of this memo is unlimited.  This
      standard supersedes RFC 884.  The only change is to specify that
      the TERMINAL-TYPE IS sub-negotiation should be sent only in
      response to the TERMINAL-TYPE SEND sub-negotiation.






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   929     Lilienkamp   Dec 84      Proposed Host-Front End Protocol

      The Host-Front End Protocol introduced in RFC 928 is described in
      detail in this memo.  The first order of business is to declare
      that THIS IS A PROPOSAL, NOT A FINAL STANDARD, and the second
      order of business is to request that any readers of these
      documents who are able to do test implementations (a) do so and
      (b) coordinate their efforts with the author.  This RFC suggests a
      proposed protocol for the ARPA-Internet community, and requests
      discussion and suggestions for improvements.

   928     Padlipsky    Dec 84      Introduction to Proposed DOD
                                    Standard H-FP

      The broad outline of the Host-Front End Protocol introduced here
      and described in RFC 929 is the result of the deliberations of a
      number of experienced H-FP designers, who sat as a committee of
      the DoD Protocol Standards Technical Panel.  It is the intent of
      the designers that the protocol be subjected to multiple test
      implementations and probable iteration before being agreed upon as
      any sort of "standard".  Therefore, the first order of business is
      to declare that THIS IS A PROPOSAL, NOT A FINAL STANDARD, and the
      second order of business is to request that any readers of these
      documents who are able to do test implementations (a) do so and
      (b) coordinate their efforts with the author.  This RFC suggests a
      proposed protocol for the ARPA-Internet community, and requests
      discussion and suggestions for improvements.

   927     Anderson     Dec 84      TACACS User Identification Telnet
                                    Option

      The following is the description of a Telnet option designed to
      facilitate double login avoidance.  It is intended primarily for
      TAC connections to target hosts on behalf of TAC users, but it can
      be used between any two consenting hosts.  For example, all hosts
      at one site (e.g., BBN) can use this option to avoid double login
      when TELNETing to one another.

      This RFC suggests a proposed protocol for the ARPA-Internet
      community, and requests discussion and suggestions for
      improvements.

   926     ISO          Dec 84      Protocol for Providing the
                                    Connectionless-Mode Network Services

      This note is the draft ISO protocol roughly similar to the DoD
      Internet Protocol.  This document has been prepared by retyping
      the text of ISO DIS 8473 of May 1984, which is currently
      undergoing voting within ISO as a Draft International Standard


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      (DIS).  This document is distributed as an RFC for information
      only.  It does not specify a standard for the ARPA-Internet.

   925     Postel       Oct 84      Multi-LAN Address Resolution

      The problem of treating a set of local area networks (LANs) as one
      Internet network has generated some interest and concern.  It is
      inappropriate to give each LAN within a site a distinct
      ARPA-Internet network number.  It is desirable to hide the details
      of the interconnections between the LANs within a site from
      people, gateways, and hosts outside the site.  The question arises
      on how to best do this, and even how to do it at all.  In RFC 917,
      Jeffery Mogul makes a case for the use of "explicit subnets" in a
      multi-LAN environment.  The explicit subnet scheme is a call to
      recursively apply the mechanisms the ARPA-Internet uses to manage
      networks to the problem of managing LANs within one network.  In
      this note I urge another approach: the use of "transparent
      subnets" supported by a multi-LAN extension of the Address
      Resolution Protocol.  This RFC suggests a proposed protocol for
      the ARPA-Internet community, and requests discussion and
      suggestions for improvements.

   924     Reynolds     Oct 84      Official ARPA-Internet Protocols

      This RFC has been replaced by RFC 991.

   923     Reynolds     Oct 84      Assigned Numbers

      This RFC has been replaced by RFCs 997 and 990.

   922     Mogul        Oct 84      Broadcasting Internet Datagrams in
                                    the Presence of Subnets

      We propose simple rules for broadcasting Internet datagrams on
      local networks that support broadcast, for addressing broadcasts,
      and for how gateways should handle them.

      This RFC suggests a proposed protocol for the ARPA-Internet
      community, and requests discussion and suggestions for
      improvements.

   921     Postel       Oct 84      Domain Name System Implementation
                                    Schedule - Revised

      This memo is a policy statement on the implementation of the
      Domain Style Naming System in the ARPA-Internet.  This memo is an
      update of RFC 881, and RFC 897.  This is an official policy
      statement of the IAB and the DARPA.  The intent of this memo is to
      detail the schedule for the implementation for the Domain Style


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      Naming System.  The explanation of how this system works is to be
      found in the references.

   920     Postel       Oct 84      Domain Requirements

      This memo states the requirements on establishing a Domain, and
      introduces the limited set of top level domains.  This memo is a
      policy statement on the requirements of establishing a new domain
      in the ARPA-Internet and the DARPA research community.  This is an
      official policy statement of the IAB and the DARPA.

   919     Mogul        Oct 84      Broadcasting Internet Datagrams

      This RFC proposes simple rules for broadcasting Internet datagrams
      on local networks that support broadcast, for addressing
      broadcasts, and for how gateways should handle them.  This RFC
      suggests a proposed protocol for the ARPA-Internet community, and
      requests discussion and suggestions for improvements.

   918     Reynolds     Oct 84      Post Office Protocol (POP)

      Updated by RFC 937.

   917     Mogul        Oct 84      Internet Subnets

      This memo discusses subnets and proposes procedures for the use of
      subnets, including approaches to solving the problems that arise,
      particularly that of routing.  A subnet of an Internet network is
      a logically visible sub-section of a single Internet network.  For
      administrative or technical reasons, many organizations have
      chosen to divide one Internet network into several subnets,
      instead of acquiring a set of Internet network numbers.  This RFC
      suggests a proposed protocol for the ARPA-Internet community, and
      requests discussion and suggestions for improvements.

   916     Finn         Oct 84      Reliable Asynchronous Transfer
                                    Protocol (RATP)

      This paper proposes and specifies a protocol which allows two
      programs to reliably communicate over a communication link.  It
      ensures that the data entering one end of the link if received
      arrives at the other end intact and unaltered.  The protocol,
      named RATP, is designed to operate over a full duplex
      point-to-point connection.  It contains some features which tailor
      it to the RS-232 links now in common use.

      This RFC suggests a proposed protocol for the ARPA-Internet
      community, and requests discussion and suggestions for
      improvements.


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   915     Elvy         Dec 84      Network Mail Path Service

      The network mail path service fills the current need of people to
      determine mailbox addresses for hosts that are not part of the
      ARPA-Internet but can be reached by one or more relay hosts that
      have Unix to Unix Copy (UUCP) mail, CSNET mail, MAILNET mail,
      BITNET mail, etc.  Anyone can use the service if they have
      TCP/TELENET to one of the hosts with a mail path server.  This RFC
      proposes a new service for the ARPA-Internet community and
      requests discussion and suggestions for improvements.

   914     Farber       Sep 84      A Thinwire Protocol

      This document focuses discussion on the particular problems in the
      ARPA-Internet of low speed network interconnection with personal
      computers, and possible methods of solution.  None of the proposed
      solutions in this document are intended as standards for the
      ARPA-Internet.  Rather, it is hoped that a general consensus will
      emerge as to the appropriate solution to the problems, leading
      eventually to the adoption of standards.

   913     Lottor       Sep 84      Simple File Transfer Protocol

      This memo describes a proposed Simple File Transfer Protocol
      (SFTP).  It fills the need of people wanting a protocol that is
      more useful than TFTP but easier to implement (and less powerful)
      than FTP.  SFTP supports user access control, file transfers,
      directory listing, directory changing, file renaming, and
      deleting.  Discussion of this proposal is encouraged, and
      suggestions for improvements may be sent to the author.

   912     StJohns      Sep 84      Authentication Service

      This memo describes a proposed authentication protocol for
      verifying the identity of a user of a TCP connection.  Given a TCP
      port number pair, it returns a character string which identifies
      the owner of that connection on the server's system.  Suggested
      uses include automatic identification and verification of a user
      during an FTP session, additional verification of a TAC dial up
      user, and access verification for a generalized network file
      server.

   911     Kirton       Aug 84      EGP Gateway under Berkeley Unix 4.2

      This memo describes an implementation of the Exterior Gateway
      Protocol (EGP) (in that sense it is a status report).  The memo
      also discusses some possible extentions and some design issues (in
      that sense it is an invitation for further discussion).



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   910     Forsdick     Aug 84      Multimedia Mail Meeting Notes

      This memo is a report on a meeting about the experimental
      multimedia mail system (and in a sense a status report on that
      experiment).  The meeting was held at Bolt Beranek and Newman on
      23-24 July 1984 to discuss recent progress by groups who are
      building multimedia mail systems and to discuss a variety of
      issues related to the further development of multimedia systems.
      Representatives were present from BBN, ISI, SRI and Linkabit.
      Distribution of this memo is unlimited.

   909     Welles       Jul 84      Loader Debugger Protocol

      The Loader Debugger Protocol (LDP) is an application layer
      protocol for loading, dumping, and debugging target machines from
      hosts in a network environment.  This RFC specifies a proposed
      protocol for the ARPA-Internet and DARPA research community, and
      requests discussion and suggestions for improvements.

   908     Velten       Jul 84      Reliable Data Protocol

      The Reliable Data Protocol (RDP) is designed to provide a reliable
      data transport service for packet-based applications.  This RFC
      specifies a proposed protocol for the ARPA-Internet and DARPA
      research community, and requests discussion and suggestions for
      improvemts.

   907     Storch       Jul 84      Host Access Protocol Specification

      This document specifies the Host Access Protocol (HAP).  Although
      HAP was originally designed as the network-access level protocol
      for the DARPA/DCA sponsored Wideband Packet Satellite Network, it
      is intended that it evolve into a standard interface SATNET and
      TACNET (aka MATNET) as well as the Wideband Network.  HAP is an
      experimental protocol, and will undergo further revision as new
      capabilities are added and/or different satellite networks are
      suported.  Implementations of HAP should be performed in
      coordination with satellite network development and operations
      personnel.

   906     Finlayson    Jun 84      Bootstrap Loading Using TFTP

      It is often convenient to be able to bootstrap a computer system
      from a communications network.  This RFC proposes the use of the
      IP/TFTP protocol for bootstrap loading in this case.






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   905     ISO          Apr 84      ISO Transport Protocol Specification
                                    (ISO DP 8073)

      This is the current specification of the ISO Transport Protocol.
      This document is the text of ISO/TC97/SC16/N1576 as corrected by
      ISO/TC97/SC16/N1695.  This is the specification currently being
      voted on in ISO as a Draft International Standard (DIS).  This
      document is distributed as an RFC for your information only, it
      does not specify a standard for the ARPA-Internet or DARPA
      research community.  Our thanks to Alex McKenzie of BBN for making
      this online version available.  Please note the size of this
      document, the file contains 258,729 characters.

   904     Mills        Apr 84      Exterior Gateway Protocol Formal
                                    Specification

      This is the specification of the Exterior Gateway Protocol (EGP).
      This memo updates portions of RFC 888 and RFC 827.  This RFC
      specifies an official protocol of the DARPA community for use
      between gateways of different autonomous systems in the
      ARPA-Internet.

   903     Finlayson    Jun 84      A Reverse Address Resolution
                                    Protocol

      This RFC suggests a method for workstations to dynamically find
      their protocol address (e.g., their Internet Address), when they
      know only their hardware address (e.g., their attached physical
      network address).  This RFC specifies a proposed protocol for the
      ARPA-Internet community, and requests discussion and suggestions
      for improvement.

   902     Postel       Jul 84      ARPA-Internet Protocol Policy

      The purpose of this memo is to explain how protocol standards are
      adopted for the ARPA-Internet and the DARPA research community.
      There are three important aspects to be discussed:  the process,
      the authority, and the complex relationship between the DARPA
      community and the DDN community.  This memo is a policy statement
      on how protocols become official standards for the ARPA-Internet
      and the DARPA research community.  This is an official policy
      statement of the ICCB and the DARPA.

   901     Reynolds     Jun 84      Official ARPA-Internet Protocols

      This RFC has been replaced by RFC 991.





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RFC 100