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Obsoleted by:755 HISTORIC
NWG/RFC 750 JBP 26-Sep-78 18:30 45500Network Working Group J. PostelRequest for Comments: 750 USC-ISINIC: 45500 26 September 1978Obsoletes:739,604,503,433,349 ASSIGNED NUMBERSThis Network Working Group Request for Comments documents the currentlyassigned values from several series of numbers used in network protocolimplementations. This RFC will be updated periodically, and in any casecurrent information can be obtained from Jon Postel. The assignment ofnumbers is also handled by Jon. If you are developing a protocol orapplication that will require the use of a link, socket, etc. pleasecontact Jon to receive a number assignment. Jon Postel USC - Information Sciences Institute 4676 Admiralty Way Marina del Rey, California 90291 phone: (213) 822-1511 ARPANET mail: POSTEL@ISIBMost of the protocols mentioned here are documented in the RFC series ofnotes. The more prominent and more generally used are documented in theProtocol Handbook [1] prepared by the Network Information Center (NIC).In the lists that follow a bracketed number, e.g. [1], off to the rightof the page indicates a reference for the listed protocol. [Page 1]
NWG/RFC 750 JBP 26-Sep-78 18:30 45500Assigned NumbersAssigned Link Numbers ASSIGNED LINK NUMBERS The word "link" here refers to a field in the original ARPANET Host/IMP interface leader. The link was originally defined as an 8 bit field. Some time after the ARPANET Host-to-Host (AHHP) protocol was defined and, by now, some time ago the definition of this field was changed to "Message-ID" and the length to 12 bits. The name link now refers to the high order 8 bits of this 12 bit message-id field. The low order 4 bits of the message-id field are to be zero unless specifically specified otherwise for the particular protocol used on that link. The Host/IMP interface is defined in BBN report 1822 [2]. Link Assignments: Decimal Octal Description References ------- ----- ----------- ---------- 0 0 AHHP Control Messages [1,3] 1 1 Reserved 2-71 2-107 AHHP Regular Messages [1,3] 72-151 110-227 Reserved 152 230 PARC Universal Protocol 153 231 TIP Status Reporting 154 232 TIP Accounting 155-158 233-236 Internet Protocol [35,36,42,43,44] 159-191 237-277 Measurements [28] 192-195 300-303 Message Switching Protocol [4,5] 196-255 304-377 Experimental Protocols 224-255 340-377 NVP [1,39] [Page 2]
NWG/RFC 750 JBP 26-Sep-78 18:30 45500Assigned NumbersAssigned Socket Numbers ASSIGNED SOCKET NUMBERS Sockets are used in the AHHP [1,3] to name the ends of logical connections which carry long term conversations. For the purpose of providing services to all callers an Initial Connection Procedure ICP [1,34] is used between the user process and the server process. This list specifies the socket used by the server process as its contact socket. Socket Assignments: General Assignments: Decimal Octal Description ------- ----- ----------- 0-63 0-77 Network Wide Standard Function 64-127 100-177 Hosts Specific Functions 128-223 200-337 Reserved for Future Use 224-255 340-377 Any Experimental Function Specific Assignments: Network Standard Functions Decimal Octal Description References ------- ----- ----------- ---------- 1 1 Old Telnet [6] 3 3 Old File Transfer [7,8,9] 5 5 Remote Job Entry [1,10] 7 7 Echo [11] 9 11 Discard [12] 11 13 Who is on or SYSTAT 13 15 Date and Time 15 17 Who is up or NETSTAT 17 21 Short Text Message 19 23 Character generator or TTYTST [13] 21 25 New File Transfer [1,14,15] 23 27 New Telnet [1,16,17] 25 31 Distributed Programming System [18,19] 27 33 NSW User System w/COMPASS FE [20] 29 35 MSG-3 ICP [21] 31 37 MSG-3 Authentication [21] 33 41 DPS ICP [18,19] 35 43 IO Station Spooler 37 45 Time Server [1,22] 39 47 NSW User System w/SRI FE [20] 41 51 Graphics [1,26] 42-63 52-77 unassigned [Page 3]
NWG/RFC 750 JBP 26-Sep-78 18:30 45500Assigned NumbersAssigned Socket Numbers Host Specific Functions Decimal Octal Description References ------- ----- ----------- ---------- 65 101 Speech Data Base at LL-TX-2 [23] 67 103 Datacomputer at CCA [24] 69 105 CPYNET 71 107 NETRJS (EBCDIC) at UCLA-CCN [1,25] 73 111 NETRJS (ASCII-68) at UCLA-CCN [1,25] 75 113 NETRJS (ASCII-63) at UCLA-CCN [1,25] 77 115 any private RJE server 79 117 Name or Finger [1,40] 81 121 Network BSYS 83 123 MIT ML Device 85 125 MIT ML Device 86-94 126-136 unassigned 95 137 SUPDUP [33] 97 141 Datacomputer Status 98-127 142-136 unassigned Reserved for Future Use Decimal Octal Description References ------- ----- ----------- ---------- 128-223 200-337 reserved Experimental Functions Decimal Octal Description References ------- ----- ----------- ---------- 224-231 340-347 unassigned 232-237 350-355 Authorized Mailer at BBN 239 357 unassigned 241 361 NCP Measurement [27,28] 243 363 Survey Measurement [28,29,30] 245 365 LINK [31] 247 367 TIPSRV 249-255 371-377 RSEXEC [31,32] [Page 4]
NWG/RFC 750 JBP 26-Sep-78 18:30 45500Assigned NumbersAssigned Network Numbers ASSIGNED NETWORK NUMBERS This list of network numbers is used in the internetwork protocols now under development, the field is 8 bits in size. Assigned Network Numbers Decimal Octal Network References ------- ----- ------- ---------- 0 0 Reserved 1 1 BBN Packet Radio Network 2 2 SF Bay Area Packet Radio Network (1) 3 3 BBN RCC Network 4 4 Atlantic Satellite Network 5 5 Washington D.C. Packet Radio Network 6 6 SF Bay Area Packet Radio Network (2) 7 7 CHAOS Network 8 10 BBN SATNET Test Network 9 11 Ft. Gordon Packet Radio Network 10 12 ARPANET [1,2] 11 13 University College London Network 12 14 CYCLADES 13 15 National Physical Laboratory 14 16 TELENET 15 17 British Post Office EPSS 16 20 DATAPAC 17 21 TRANSPAC 18 22 LCS Network [37,38] 19 23 TYMNET 20 24 Ft. Sill Packet Radio Network 21 25 DCEC EDN 22-254 26-376 Unassigned 255 377 Reserved [Page 5]
NWG/RFC 750 JBP 26-Sep-78 18:30 45500Assigned NumbersAssigned Internet Message Versions ASSIGNED INTERNET MESSAGE VERSIONS In the internetwork protocols there is a field to identify the version of the internetwork general protocol. This field is 4 bits in size. Assigned Internet Message Versions Decimal Octal Version References ------- ----- ------- ---------- 0 0 March 1977 version [35] 1 1 January 1978 version [36] 2 2 February 1978 version A [42] 3 3 February 1978 version B [43] 4 4 September 1978 version 4 [44] 5-14 5-16 Unassigned 15 17 Reserved [Page 6]
NWG/RFC 750 JBP 26-Sep-78 18:30 45500Assigned NumbersAssigned Internet Message Formats ASSIGNED INTERNET MESSAGE FORMATS In several of the internetwork protocol versions there is a field to identify the format of the host level specific protocol. This field is 8 bits in size. This field is called either Format or Protocol. Assigned Internet Message Formats Decimal Octal Format References ------- ----- ------ ---------- 0 0 Reserved 1 1 raw internet [42] 2 2 TCP-3 [36] 3 3 DSP [37,38] 4 4 Gateway Monitoring Message [41] 5 5 TCP-3.1 [45] 6 6 TCP-4 [46] 7-254 7-376 Unassigned 255 377 Reserved [Page 7]
NWG/RFC 750 JBP 26-Sep-78 18:30 45500Assigned NumbersAssigned Internet Message Types ASSIGNED INTERNET MESSAGE TYPES In the March 1977 internetwork protocol [35] there is a field to identify the type of the message. This field is 4 bits in size. Assigned Internet Message Types Decimal Octal Type References ------- ----- ---- ---------- 0 0 Raw Internet Packet 1 1 TCP-2 [35] 2 2 Secure 3 3 Gateway 4 4 Measurement 5 5 DSP [37,38] 6 6 UCL 7-12 7-14 Reserved 13 15 Pluribus 14 16 Telenet 15 17 Xnet [Page 8]
NWG/RFC 750 JBP 26-Sep-78 18:30 45500Assigned NumbersReferences REFERENCES [1] Feinler, E. "ARPANET Protocol Handbook," NIC 7104, Defense Communications Agency, January 1978. [2] BBN, "Specifications for the Interconnection of a Host and an IMP," Report 1822, Bolt Beranek and Newman, Cambridge, Massachusetts, January 1976. [3] McKenzie,A. "Host/Host Protocol for the ARPA Network," NIC 8246, January 1972. Also in [1]. [4] Walden, D. " A System for Interprocess Communication in a Resource Sharing Network,"RFC 62, NIC 4962, 3 August 1970. Also published in Communications of the ACM, volume 15, number 4, April 1972. [5] Bressler, B. "A Proposed Experiment with a Message Switching Protocol,"RFC 333, NIC 9926, 15 May 72. [6] Postel, J. "Telnet Protocol,"RFC 318, NIC 9348, 3 April 1972. [7] McKenzie, A. "File Transfer Protocol,"RFC 454, NIC 14333, 16 February 1973. [8] Clements, R. "FTPSRV -- Extensions for Tenex Paged Files,"RFC 683, NIC 32251, 3 April 1975. Also in [1]. [9] Harvey, B. "One More Try on the FTP,"RFC 691, NIC 32700, 6 June 1975. [10] Bressler, B. "Remote Job Entry Protocol,"RFC 407, NIC 12112, 16 October 72. Also in [1]. [11] Postel, J. "Echo Process,"RFC 347, NIC 10426, 30 May 1972. [12] Postel, J. "Discard Process,"RFC 348, NIC 10427, 30 May 1972. [13] Postel, J. "Character Generator Process,"RFC 429, NIC 13281, 12 December 1972. [14] Neigus, N. "File Transfer Protocol,"RFC 542, NIC 17759, 12 July 1973. Also in [1]. [15] Postel, J. "Revised FTP Reply Codes,"RFC 640, NIC 30843, 5 June 1974. Also in [1]. [Page 9]
NWG/RFC 750 JBP 26-Sep-78 18:30 45500Assigned NumbersReferences [16] McKenzie, A. "Telnet Protocol Specification," NIC 18639, August 1973. Also in [1]. [17] McKenzie, A. "Telnet Option Specification," NIC 18640, August 1973. Also in [1]. [18] White, J. "A High Level Framework for Network-Based Resource Sharing,"RFC 707, NIC 34263, 14 January 1976. Also in NCC Proceedings, AFIPS, June 1976. [19] White, J. "Elements of a Distributed Programming System,"RFC 708, NIC 34353, 28 January 1976. [20] COMPASS. "Semi-Annual Technical Report," CADD-7603-0411, Massachusetts Computer Associates, 4 March 1976. Also as, "National Software Works, Status Report No. 1," RADC-TR-76-276, Volume 1, September 1976. And COMPASS. "Second Semi-Annual Report," CADD-7608-1611, Massachusetts Computer Associates, 16 August 1976. [21] NSW Protocol Committee, "MSG: The Interprocess Communication Facility for the National Software Works," CADD-7612-2411, Massachusetts Computer Associates, BBN 3237, Bolt Beranek and Newman, Revised 24 December 1976. [22] Harrenstien, K. "Time Server,"RFC 738, NIC 42218, 31 October 1977. Also in [1]. [23] Armenti, A., D. Hall, and A. Stone. "Lincoln Speech Data Facility," SUR Note 37, NIC 10917, 14 July 1972. [24] CCA, "Datacomputer Version 1 User Manual," Computer Corporation of America, August 1975. [25] Braden, R. "NETRJS Protocol,"RFC 740, NIC 42423, 22 November 1977. Also in [1]. [26] Sproull, R, and E. Thomas. "A Networks Graphics Protocol," NIC 24308, 16 August 1974. Also in [1]. [27] Cerf, V., "NCP Statistics,"RFC 388, NIC 11360, 23 August 1972. [28] Cerf, V., "Formation of a Network Measurement Group (NMG),"RFC 323, NIC 9630, 23 March 1972. [29] Bhushan, A., "A Report on the Survey Project,"RFC 530, NIC 17375, 22 June 1973. [Page 10]
NWG/RFC 750 JBP 26-Sep-78 18:30 45500Assigned NumbersReferences [30] Cantor, D., "Storing Network Survey Data at the Datacomputer,"RFC 565, NIC 18777, 28 August 1973. [31] Bressler, R., "Inter-Entity Communication -- An Experiment,"RFC 441, NIC 13773, 19 January 1973. [32] Thomas, R. "A Resource Sharing Executive for the ARPANET," AFIPS Conference Proceedings, 42:155-163, NCC, 1973. [33] Crispin, M. "SUPDUP Protocol,"RFC 734, NIC 41953, 7 October 1977. Also in [1]. [34] Postel, J. "Official Initial Connection Protocol," NIC 7101, 11 June 1971. Also in [1]. [35] Cerf, V. "Specification of Internet Transmission Control Program -- TCP (version 2)," March 1977. [36] Cerf, V. and J. Postel, "Specification of Internetwork Transmission Control Program -- TCP Version 3," USC-Information Sciences Institute, January 1978. [37] Reed, D. "Protocols for the LCS Network," Local Network Note 3, Laboratory for Computer Science, MIT, 29 November 1976. [38] Clark, D. "Revision of DSP Specification," Local Network Note 9, Laboratory for Computer Science, MIT, 17 June 1977. [39] Cohen, D. "Specifications for the Network Voice Protocol (NVP)," NSC Note 68, 29 January 1976. Also as USC-Information Sciences Institute RR-75-39, March 1976, and asRFC 741, NIC 42444, 22 November 1977. Also in [1]. [40] Harrenstien, K. "Name/Finger,"RFC 742, NIC 42758, 30 December 1977. Also in [1]. [41] Cole, J. "Gateway Monitoring Messages," BBN, 1 February 1978. [42] Postel, J. "Draft Internetwork Protocol Specification -- Version 2," USC-Information Sciences Institute, February 1978. [43] Cerf, V. "A Proposed New Internet Header Format," Advanced Research Projects Agency, IEN 26, 14 February 1978. [44] Postel, J. "Internetwork Protocol Specification -- Version 4," IEN-54, USC-Information Sciences Institute, September 1978. [Page 11]
NWG/RFC 750 JBP 26-Sep-78 18:30 45500Assigned NumbersReferences [45] Cerf, V. "A Proposal for TCP Version 3.1 Header Format," Advanced Research Projects Agency, IEN 26, 14 February 1978. [46] Postel, J. "Specification of Internetwork Transmission Control Protocol -- Version 4," IEN-55, USC-Information Sciences Institute, September 1978. [Page 12]
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