RFC 503: Socket number list

This RFC is now obsolete

Network Working Group N. Neigus
Request for Comments: 503 J. Postel
NIC: 15747 13 April 1973
References: 349, 433


 Socket Number List

 This is a second pass at the specification of the socket numbers.
 More sockets have been made available for experimental functions,
 some new sockets have been assigned for network standard functions,
 host specific functions and experimental functions, and the list of
 available sockets for server hosts has been updated.

 Following are the current assignments for socket numbers used for
 public functions. Note that a socket number is a 40 bit quantity,
 the first 8 bits being the host specification, the next 24 bits being
 site specific, and the last 8 bits being user specified -- these last
 8 bits are called the AEN [it stands for, cleverly enough, Another
 Eightbit Number].

 For the assignments here the value in the host field ranges across al
 hosts (unless otherwise specified), the value in the 24 bit field is
 zero, and the AEN is indicated here.

General Assignments:

 Sockets Assignment

 0 - 63 Network Wide Standard Functions
 64 - 127 Host Specific Functions
 128 - 223 Reserved for Future Use
 224 - 255 Any Experimental Function


















Neigus, et. al. [Page 1]

RFC 503 Socket Number List 13 April 1973


Particular Assignments:

 Socket Assignment

 1 Telnet
 3 File Transfer
 5 Remote Job Entry
 7 Echo
 9 Discard
 11 Systat or who-is-on function
 13 Date-Time function
 15 Netstat or who-is-up function
 19 Character Generator [e.g. TTYTST]

 65 Speech Data Base @ 11-tx-2 (74)
 67
 69 CPYNET
 71 NETRJS [EBCDIC]
 73 NETRJS [ASCII]
 75 NETRJS [TTY]

 241 NCP Measurement
 243 Survey Measurement
 245 LINK
 247 RSEXEC
 249 RSEXEC
 251 RSEXEC

 The specifications for the assigned functions can be found in the
 documents listed here:

 Telnet NIC 7104
 File Transfer NIC 7104
 Remote Job Entry NIC 7104
 Echo RFC 347
 Discard RFC 348
 Character Generator RFC 429
 Speech Data Base SUR 37
 Datacomputer [Murray @ CCA]
 NCP Measurement RFC 388
 Survey Data [Kampa @ NMC]
 LINK [Bressler @ BBN]
 RSEXEC [Thomas @ BBN]

 There are several hosts performing public services on sockets which
 conflict with the above scheme. We hope we can resolve these
 conflicts with a minimum of disruption.




Neigus, et. al. [Page 2]

RFC 503 Socket Number List 13 April 1973


 The following is a tabulation of socket numbers together with the
 services offered. This listing is presented as an aid to network
 users. If you know of a socket function which has been left out or
 an entry which should be corrected or deleted please contact:

 Jon Postel
 3804 Boelter Hall
 Computer Science Department
 University of California
 Los Angeles, CA. 90024

 Phone: (213) 825-2368

 NIC Ident - JBP

 or

 Nancy J. Neigus
 Bolt Beranek and Newman
 50 Moulton Street
 Cambridge, Mass. 02138

 Phone: (617) 661-0100

 NIC Ident = NJN

 We will be pleased to include socket/function information for other
 than "official" sockets [e.g. Tip News].

 1 UCLA-NMC

 1 Telnet
 3 File Transfer
 241 NCP Measurement
 243 Survey Data

 2 SRI-ARC

 1 Telnet
 3 File Transfer
 7 Echo
 11 SYSTAT
 13 DATE-TIME
 69 CPYNET







Neigus, et. al. [Page 3]

RFC 503 Socket Number List 13 April 1973


 3 UCSB

 1 Telnet
 5 UCSB RJS [not ARPANET standard]
 7 Echo
 9 Discard

 1793, 1795, 1797, 1799, 1801, 2049 Graphics terminal sockets
 x'701', '703', '705', '707', '709', '801' o'3401', '3403',
 '3405', '3407', '3411', '4001'

 4 UTAH

 1 Telnet
 3 File Transfer
 5 Echo
 7 CPYNET
 9 SYSTAT
 13 DATE-TIME

 6 MIT-Multics

 1 Telnet
 3 File Transfer

 8 SDC-Adept

 1 Telnet

 9 Harvard

 1 Telnet
 3 File Transfer

 10 LL-67

 1 Telnet

 11 SAIL

 1 Telnet
 3 File Transfer









Neigus, et. al. [Page 4]

RFC 503 Socket Number List 13 April 1973


 13 CASE

 1 Telnet
 3 File Transfer
 7 Echo
 11 SYSTAT
 13 DATE-TIME
 69 CPYNET

 14 CMU

 1 Telnet
 3 File Transfer

 15 ILLIAC-TENEX

 1 Telnet
 3 File Transfer
 5 Echo
 7 CPYNET
 9 SYSTAT
 13 DATE-TIME

 16 NASA-AMES

 1 Telnet
 3 File Transfer
 5 Sorry Remote Job Entry
 7 Echo
 9 Discard
 241 NCP Measurement

 23 USC-44

 1 Telnet

 31 CCA-TENEX
 1 Telnet
 3 File Transfer
 7 Echo
 11 SYSTAT
 15 NETSTAT









Neigus, et. al. [Page 5]

RFC 503 Socket Number List 13 April 1973


 35 UCSD

 1 Telnet

 65 UCLA-CCN

 1 Telnet
 3 File Transfer
 7 Echo
 9 Discard
 71 NETRJS [EBCDIC]
 73 NETRJS [ASCII]
 75 NETRJS [TTY]

 66 SRI-AI

 1 Telnet
 3 File Transfer
 5 Echo
 7 CPYNET
 9 SYSTAT
 11 Sorry NETSAT

 69 BBN-TENEX (a)

 1 Telnet
 3 File Transfer
 7 Echo
 11 SYSTAT
 13 DATE-TIME
 15 NETSTAT
 17 Oneliners
 69 CPYNET
 247 = x'F7' = o'367' TIP RSEXEC Facility

 70 MIT-DMCG

 1 Telnet
 3 File Transfer
 7 Network Status
 9 Discard










Neigus, et. al. [Page 6]

RFC 503 Socket Number List 13 April 1973


 74 LL-TX-2

 1 Telnet

 78 CMU-alt

 1 Telnet
 3 File Transfer

 86 ISI-TENEX

 1 Telnet
 3 File Transfer
 7 Echo
 11 SYSTAT
 13 DATE-TIME
 69 CPYNET

 133 BBN-TENEXB

 1 Telnet
 3 File Transfer
 7 Echo
 11 SYSTAT
 13 DATE-TIME
 15 NETSTAT
 17 Oneliners
 69 CPYNET

 134 MIT-AI

 1 Telnet
 3 File Transfer

 198 MIT-Mathlab

 1 Telnet
 3 File Transfer













Neigus, et. al. [Page 7]

RFC 503 Socket Number List 13 April 1973


 User only hosts -- no server sockets

 5 NCC
 7 RAND
 12 ILI-ANTS
 19 NBS-ANTS
 32 PARC-MAXC (currently)
 138 LL-TSP
 197 BBN-1D










































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