rfc943.txt

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Reynolds & Postel                                              [Page 12]



Assigned Numbers                                                 RFC 943
Protocol Numbers


                       ASSIGNED PROTOCOL NUMBERS

   In the Internet Protocol (IP) [35,80] there is a field, called
   Protocol, to identify the the next level protocol.  This is an 8 bit
   field.

   Assigned Internet Protocol Numbers

      Decimal    Keyword     Protocol                         References
      -------    -------     --------                         ----------
           0                 Reserved                              [JBP]
           1     ICMP        Internet Control Message           [72,JBP]
           2                 Unassigned                            [JBP]
           3     GGP         Gateway-to-Gateway                  [47,MB]
           4                 Unassigned                            [JBP]
           5     ST          Stream                             [39,JWF]
           6     TCP         Transmission Control            [35,81,JBP]
           7     UCL         UCL                                    [PK]
           8     EGP         Exterior Gateway Protocol         [96,DLM1]
           9     IGP         any private interior gateway          [JBP]
          10     BBN-RCC-MON BBN RCC Monitoring                    [SGC]
          11     NVP-II      Network Voice Protocol             [18,SC3]
          12     PUP         PUP                                [12,HGM]
          13     ARGUS       ARGUS                                [RWS4]
          14     EMCON       EMCON                                 [BN7]
          15     XNET        Cross Net Debugger                [45,JFH2]
          16     CHAOS       Chaos                                 [NC3]
          17     UDP         User Datagram                   [35,79,JBP]
          18     MUX         Multiplexing                       [19,JBP]
          19     DCN-MEAS    DCN Measurement Subsystems           [DLM1]
          20     HMP         Host Monitoring                     [5,RH6]
          21     PRM         Packet Radio Measurement              [ZSU]
          22     XNS-IDP     XEROX NS IDP                      [114,LLG]
          23     TRUNK-1     Trunk-1                               [BML]
          24     TRUNK-2     Trunk-2                               [BML]
          25     LEAF-1      Leaf-1                                [BML]
          26     LEAF-2      Leaf-2                                [BML]
          27     RDP         Reliable Data Protocol            [111,RH6]
          28     IRTP        Internet Reliable Transaction      [61,TXM]
       29-60                 Unassigned                            [JBP]
          61                 any host internal protocol            [JBP]
          62     CFTP        CFTP                              [40,HCF2]
          63                 any local network                     [JBP]
          64     SAT-EXPAK   SATNET and Backroom EXPAK            [DM11]
          65     MIT-SUBNET  MIT Subnet Support                    [NC3]
          66     RVD         MIT Remote Virtual Disk Protocol      [MBG]
          67     IPPC        Internet Pluribus Packet Core        [DM11]
          68                 any distributed file system           [JBP]


Reynolds & Postel                                              [Page 13]



Assigned Numbers                                                 RFC 943
Protocol Numbers


          69     SAT-MON     SATNET Monitoring                    [DM11]
          70                 Unassigned                            [JBP]
          71     IPCV        Internet Packet Core Utility         [DM11]
       72-75                 Unassigned                            [JBP]
          76     BR-SAT-MON  Backroom SATNET Monitoring           [DM11]
          77                 Unassigned                            [JBP]
          78     WB-MON      WIDEBAND Monitoring                  [DM11]
          79     WB-EXPAK    WIDEBAND EXPAK                       [DM11]
      80-254                 Unassigned                            [JBP]
         255                 Reserved                              [JBP]








































Reynolds & Postel                                              [Page 14]



Assigned Numbers                                                 RFC 943
Port Numbers


                         ASSIGNED PORT NUMBERS

   Ports are used in the TCP [35,81] to name the ends of logical
   connections which carry long term conversations.  For the purpose of
   providing services to unknown callers, a service contact port is
   defined.  This list specifies the port used by the server process as
   its contact port.  The contact port is sometimes called the
   "well-known port".

   To the extent possible, these same port assignments are used with the
   UDP [35,79].

   The assigned ports use a small portion of the possible port numbers.
   The assigned ports have all except the low order eight bits cleared
   to zero.  The low order eight bits are specified here.

   Port Assignments:

      Decimal   Keyword   Description                         References
      -------   -------   -----------                         ----------
      0                   Reserved                                 [JBP]
      1-4                 Unassigned                               [JBP]
      5        RJE        Remote Job Entry                   [14,36,JBP]
      7        ECHO       Echo                                  [70,JBP]
      9        DISCARD    Discard                               [69,JBP]
      11       USERS      Active Users                          [65,JBP]
      13       DAYTIME    Daytime                               [68,JBP]
      15       NETSTAT    Who is up or NETSTAT                     [JBP]
      17       QUOTE      Quote of the Day                      [75,JBP]
      19       CHARGEN    Character Generator                   [67,JBP]
      20       FTP        File Transfer [Default Data]       [35,71,JBP]
      21       FTP        File Transfer [Control]            [35,71,JBP]
      23       TELNET     Telnet                                [87,JBP]
      25       SMTP       Simple Mail Transfer               [35,77,JBP]
      27       NSW-FE     NSW User System FE                    [20,RHT]
      29       MSG-ICP    MSG ICP                               [63,RHT]
      31       MSG-AUTH   MSG Authentication                    [63,RHT]
      33                  Unassigned                               [JBP]
      35                  any private printer server               [JBP]
      37       TIME       Time                                  [83,JBP]
      39       RLP        Resource Location Protocol              [1,MA]
      41       GRAPHICS   Graphics                          [36,103,JBP]
      42       NAMESERVER Host Name Server                   [35,74,JBP]
      43       NICNAME    Who Is                            [35,44,JAKE]
      44       MPM-FLAGS  MPM FLAGS Protocol                       [JBP]
      45       MPM        Message Processing Module [recv]      [73,JBP]
      46       MPM        MPM [default send]                    [79,JBP]
      47       NI-FTP     NI FTP                                [109,SK]


Reynolds & Postel                                              [Page 15]



Assigned Numbers                                                 RFC 943
Port Numbers


      49       LOGIN      Login Host Protocol                     [PHD1]
      51       LA-MAINT   IMP Logical Address Maintenance       [59,AGM]
      53       DOMAIN     Domain Name Server                       [PM1]
      55       ISI-GL     ISI Graphics Language                 [11,RB6]
      57                  any private terminal access              [JBP]
      59                  any private file service                 [JBP]
      61       NI-MAIL    NI MAIL                                 [9,SK]
      63       VIA-FTP    VIA Systems - FTP                        [DXD]
      65       TACACS-DS  TACACS-Database Service              [115,RHT]
      67                  Unassigned                               [JBP]
      69       TFTP       Trivial File Transfer              [35,90,KRS]
      71       NETRJS     Remote Job Service                 [13,36,RTB]
      72       NETRJS     Remote Job Service                 [13,36,RTB]
      73       NETRJS     Remote Job Service                 [13,36,RTB]
      74       NETRJS     Remote Job Service                 [13,36,RTB]
      75                  any private dial out service             [JBP]
      77                  any private RJE service                  [JBP]
      79       FINGER     Finger                             [36,42,KLH]
      81                  HOSTS2 Name Server                      [EAK1]
      83       HOSTS2-NS  MIT ML Device                            [DPR]
      85       MIT-ML-DEV MIT ML Device                            [DPR]
      87                  any private terminal link                [JBP]
      89       SU-MIT-TG  SU/MIT Telnet Gateway                    [MRC]
      91       MIT-DOV    MIT Dover Spooler                        [EBM]
      93       DCP        Device Control Protocol                 [DT15]
      95       SUPDUP     SUPDUP                                [23,MRC]
      97       SWIFT-RVF  Swift Remote Vitural File Protocol       [MXR]
      99       METAGRAM   Metagram Relay                          [GEOF]
      101      HOSTNAME   NIC Host Name Server              [35,43,JAKE]
      103                 Unassigned                               [JBP]
      105      CSNET-NS   Mailbox Name Nameserver             [101,MHS1]
      107      RTELNET    Remote Telnet Service                 [76,JBP]
      109      POP-2      Post Office Protocol - Version 2     [16,JKR1]
      111      SUNRPC     SUN Remote Procedure Call                [DXG]
      113      AUTH       Authentication Service              [104,MCA1]
      115      SFTP       Simple File Transfer Protocol        [54,MKL1]
      116                 Unassigned                               [JBP]
      117      UUCP-PATH  UUCP Path Service                     [34,MAE]
      119      UNTP       USENET News Transfer Protocol        [117,PL4]
      120-129             Unassigned                               [JBP]
      131                 Unassigned                               [JBP]
      132-223             Reserved                                 [JBP]
      224-241             Unassigned                               [JBP]
      243      SUR-MEAS   Survey Measurement                     [10,AV]
      245      LINK       LINK                                 [15,RDB2]
      247-255             Unassigned                               [JBP]




Reynolds & Postel                                              [Page 16]



Assigned Numbers                                                 RFC 943
Autonomous System Numbers


                   ASSIGNED AUTONOMOUS SYSTEM NUMBERS

   The Exterior Gateway Protocol (EGP) [96,93] specifies that groups of
   gateways may form autonomous systems.  The EGP provides a 16-bit
   field for identifying such systems.  The values of this field are
   registered here.

   Autonomous System Numbers:

      Decimal   Name                                          References
      -------   ----                                          ----------
            0   Reserved                                           [JBP]
            1   The BBN Core Gateways                               [MB]
            2   DCN-AS                                            [DLM1]
            3   The MIT Gateways                                   [LM8]
            4   ISI-AS                                            [JKR1]
            5   Symbolics                                          [CH2]
            6   HIS-Multics                                    [BIM,RK1]
            7   UK-MOD                                            [RNM1]
            8   RICE-AS                                            [PGM]
            9   CMU-ROUTER                                          [MA]
            10  CSNET-PDN-AS                                      [RDR4]
            11  HARVARD                                           [SB28]
            12  NYU-DOMAIN                                         [EF5]
            13  BRL-AS                                            [RBN1]
            14  COLUMBIA-GW                                       [BC14]
            15  NET DYNAMICS EXP                                   [ZSU]
            16  LBL                                                 [WG]
            17  PURDUE-CS                                         [KCS1]
            18  UTEXAS                                            [JSQ1]
            19  CSS-DOMAIN                                         [RR2]
            20  UR                                                [LB16]
            21  RAND                                               [JDG]
            22  NOSC                                              [RLB3]
            23  RIACS-AS                                          [DG28]
            24  AMES-NAS-GW                                       [MF31]
            25  UCB                                               [MK17]
            26  CORNELL                                            [BN9]
            27  UMDNET                                            [JWO1]
            28  DFVLR-SYS                                         [HDC1]
            29  YALE-AS                                           [JG46]
            30  SRI-AICNET                                         [PM4]
            31  CIT-CS                                            [AD22]
            32  STANFORD                                           [PA5]
            33  DEC-WRL-AS                                        [RKJ2]
            34  UDEL-EECIS                                         [NMM]
            35  MICATON                                            [JN2]
            36  EGP-TESTOR                                        [BP17]


Reynolds & Postel                                              [Page 17]



Assigned Numbers                                                 RFC 943
Autonomous System Numbers


            37  NSWC                                              [MXP1]
            38  UIUC                                               [AKC]
            39  NRL-ITD                                             [AP]
            40  MIT-TEST                                           [NC3]
            41  AMES                                              [MSM1]
            42  THINK-AS                                          [BJN1]
            43  BNL-AS                                              [GC]
      44-65534  Unassigned                                         [JBP]
        65535   Reserved                                           [JBP]