rfc776.txt

RFC 相关的技术文档

Network Working Group                                          J. Postel
Request for Comments: 776                                            ISI
                                                            January 1981

Obsoletes RFCs:  770, 762, 758,
755, 750, 739, 604, 503, 433, 349
Obsoletes IENs:  127, 117, 93



                            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 RFC will be updated periodically, and in any case
current information can be obtained from Jon Postel.  The assignment of
numbers is also handled by Jon.  If you are developing a protocol or
application that will require the use of a link, socket, port, protocol,
or network number please contact Jon to receive a number assignment.

   Jon Postel
   USC - Information Sciences Institute
   4676 Admiralty Way
   Marina del Rey, California  90291

   phone: [phone]

   ARPANET mail: POSTEL@ISIF

Most of the protocols mentioned here are documented in the RFC series of
notes.  The more prominent and more generally used are documented in the
Protocol Handbook [17] prepared by the Network Information Center (NIC).
Some of the items listed are undocumented.  In all cases the name and
mailbox of the responsible individual is indicated.  In the lists that
follow a bracketed entry, e.g. [17,iii], at the right hand margin of the
page indicates a reference for the listed protocol, where the number
cites the document and the "iii" cites the person.














Postel                                                          [Page 1]


RFC 776                                                     January 1981
                                                        Assigned Numbers
Network Numbers



                        ASSIGNED NETWORK NUMBERS

   This list of network numbers is used in the internet address [8], the
   field is 8 bits in size.

   Assigned Network Numbers

      Decimal   Octal  Name        Network                    References
      -------   -----  ----        -------                    ----------
            0       0              Reserved                        [JBP]
            1       1  BBN-PR      BBN Packet Radio Network       [DCA2]
            2       2  SF-PR-1     SF Packet Radio Network (1)     [JEM]
            3       3  BBN-RCC     BBN RCC Network                 [SGC]
            4       4  SATNET      Atlantic Satellite Network     [DM11]
            5       5  SILL-PR     Ft. Sill Packet Radio Network   [JEM]
            6       6  SF-PR-2     SF Packet Radio Network (2)     [JEM]
            7       7  CHAOS       MIT CHAOS Network              [MOON]
            8      10  CLARKNET    SATNET subnet for Clarksburg   [DM11]
            9      11  BRAGG-PR    Ft. Bragg Packet Radio Network  [JEM]
           10      12  ARPANET     ARPANET                    [17,1,VGC]
           11      13  UCLNET      University College London        [PK]
           12      14  CYCLADES    CYCLADES                        [VGC]
           13      15              Unassigned                      [JBP]
           14      16  TELENET     TELENET                         [VGC]
           15      17  EPSS        British Post Office EPSS         [PK]
           16      20  DATAPAC     DATAPAC                         [VGC]
           17      21  TRANSPAC    TRANSPAC                        [VGC]
           18      22  LCSNET      MIT LCS Network          [43,10,DDC2]
           19      23  TYMNET      TYMNET                          [VGC]
           20      24  DC-PR       D.C. Packet Radio Network       [VGC]
           21      25  EDN         DCEC EDN                        [EC5]
           22      26  DIALNET     DIALNET                   [26,16,MRC]
           23      27  MITRE       MITRE Cablenet               [44,APS]
           24      30  BBN-LOCAL   BBN Local Network               [SGC]
           25      31  RSRE-PPSN   RSRE / PPSN                     [BD2]
           26      32  AUTODIN-II  AUTODIN II                      [EC5]
           27      33  NOSC-LCCN   NOSC / LCCN                     [KTP]
           28      34  WIDEBAND    Wide Band Satellite Network    [CJW2]
           29      35  DCN-COMSAT  COMSAT Dist. Comp. Network     [DLM1]
           30      36  DCN-UCL     UCL Dist. Comp. Network          [PK]
           31      37  BBN-SAT-TEST  BBN SATNET Test Network      [DM11]
           32      40  UCL-CR1     UCL Cambridge Ring 1             [PK]
           33      41  UCL-CR2     UCL Cambridge Ring 2             [PK]
           34      42  MATNET      Mobile Access Terminal Net     [DM11]
           35      43  NULL        UCL/RSRE Null Network           [BD2]
           36      44  SU-NET      Stanford University Ethernet    [MRC]



Postel                                                          [Page 2]


RFC 776                                                     January 1981
                                                        Assigned Numbers
Network Numbers



           37      45  DECNET      Digital Equipment Network       [DRL]
           38      46  DECNET-TEST  Test Digital Equipment Net     [DRL]
           39      47  SRINET      SRI Local Network              [GEOF]
           40      50  CISLNET     CISL Multics Network            [CH2]
           41      51  BBN-LN-TEST  BBN Local Network Testbed      [KTP]
       42-254  50-376              Unassigned                      [JBP]
          255     377              Reserved                        [JBP]

                   ASSIGNED INTERNET VERSION NUMBERS

   In the Internet Protocol (IP) [33] there is a field to identify the
   version of the internetwork general protocol.  This field is 4 bits
   in size.

   Assigned Internet Version Numbers

      Decimal   Octal      Version                            References
      -------   -----      -------                            ----------
          0      0         Reserved                                [JBP]
        1-3    1-3         Unassigned                              [JBP]
          4      4         Internet Protocol                    [33,JBP]
          5      5         ST Datagram Mode                     [20,JWF]
       6-14   6-16         Unassigned                              [JBP]
         15     17         Reserved                                [JBP]

























Postel                                                          [Page 3]


RFC 776                                                     January 1981
                                                        Assigned Numbers
Internet Protocol Numbers



                   ASSIGNED INTERNET PROTOCOL NUMBERS

   In the Internet Protocol (IP) [33] there is a field, called Protocol,
   to identify the the next level protocol.  This is an 8 bit field.

   Assigned Internet Protocol Numbers

      Decimal    Octal      Protocol Numbers                  References
      -------    -----      ----------------                  ----------
           0       0         Reserved                              [JBP]
           1       1         raw internet datagrams             [33,JBP]
           2       2         Unassigned                            [JBP]
           3       3         Gateway-to-Gateway              [48,49,VMS]
           4       4         CMCC Gateway Monitoring Message [18,19,DFP]
           5       5         ST                                 [20,JWF]
           6       6         TCP                                [34,JBP]
           7       7         UCL                                    [PK]
           8      10         Unassigned                            [JBP]
           9      11         Secure                                [VGC]
          10      12         BBN RCC Monitoring                    [VMS]
          11      13         NVP                                 [12,DC]
          12      14         PUP                                [4,EAT3]
          13      15         Pluribus                             [RDB2]
          14      16         Telenet                              [RDB2]
          15      17         XNET                              [25,JFH2]
          16      20         Chaos                                [MOON]
          17      21         User Datagram                      [42,JBP]
          18      22         Multiplexing                       [13,JBP]
          19      23         DCN                                  [DLM1]
          20      24         TAC Monitoring                        [RH6]
       21-62   25-76         Unassigned                            [JBP]
          63      77         any local network                     [JBP]
          64     100         SATNET and Backroom EXPAK            [DM11]
       65-68 101-104         Unassigned                            [JBP]
          69     105         SATNET Monitoring                    [DM11]
          70     106         Unassigned                            [JBP]
          71     107         Internet Packet Core Utility         [DM11]
       72-75 110-113         Unassigned                            [JBP]
          76     114         Backroom SATNET Monitoring           [DM11]
          77     115         Unassigned                            [JBP]
          78     116         WIDEBAND Monitoring                  [DM11]
          79     117         WIDEBAND EXPAK                       [DM11]
      80-254 120-376         Unassigned                            [JBP]
         255     377         Reserved                              [JBP]





Postel                                                          [Page 4]


RFC 776                                                     January 1981
                                                        Assigned Numbers
Port or Socket Numbers



                    ASSIGNED PORT or SOCKET NUMBERS

   Ports are used in the TCP [34] and sockets are used in the AHHP
   [28,17] to name the ends of logical connections which carry long term
   conversations.  For the purpose of providing services to unknown
   callers a service contact socket is defined.  This list specifies the
   port or socket used by the server process as its contact socket.  In
   the AHHP an Initial Connection Procedure ICP [39,17] is used between
   the user process and the server process to make the initial contact
   and establish the long term connections leaving the contact socket
   free to handle other callers.  In the TCP no ICP is necessary since a
   port may engage in many simultaneous connections.

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

   Socket Assignments:

      General Assignments:

         Decimal   Octal     Description
         -------   -----     -----------
         0-63      0-77      Network Wide Standard Function
         64-131    100-203   Hosts Specific Functions
         132-223   204-337   Reserved for Future Use
         224-255   340-377   Any Experimental Function





















Postel                                                          [Page 5]


RFC 776                                                     January 1981
                                                        Assigned Numbers
Port or Socket Numbers



      Specific Assignments:

         Network Standard Functions

         Decimal   Octal     Description                      References
         -------   -----     -----------                      ----------
         1         1         Old Telnet                         [40,JBP]
         3         3         Old File Transfer            [27,11,24,JBP]
         5         5         Remote Job Entry                 [6,17,JBP]
         7         7         Echo                               [35,JBP]
         9         11        Discard                            [32,JBP]
         11        13        Who is on or SYSTAT                   [JBP]
         13        15        Date and Time                         [JBP]
         15        17        Who is up or NETSTAT                  [JBP]
         17        21        Short Text Message                    [JBP]
         19        23        Character generator or TTYTST      [31,JBP]
         21        25        New File Transfer                  [36,JBP]
         23        27        New Telnet                         [41,JBP]
         25        31        Unassigned                            [JBP]
         27        33        NSW User System w/COMPASS FE       [14,RHT]
         29        35        MSG-3 ICP                          [29,RHT]
         31        37        MSG-3 Authentication               [29,RHT]
         33        41        Unassigned                            [JBP]
         35        43        IO Station Spooler                    [JBP]
         37        45        Time Server                        [22,JBP]
         39        47        Unassigned                            [JBP]
         41        51        Graphics                        [46,17,JBP]
         42        52        Name Server                        [38,JBP]
         43        53        WhoIs                                [JAKE]
         45        55        Message Processing Module          [37,JBP]
         47        57        NI FTP                             [50,CJB]
         49        61        RAND Network Graphics Conference   [30,MO2]
         51        63        Unassigned                            [JBP]
         53        65        AUTODIN II FTP                     [21,EC5]
         55        67        ISI Graphics Language               [3,RB6]
         57        71        Mail Transfer                      [45,JBP]
         59-63     73-77     Unassigned                            [JBP]












Postel                                                          [Page 6]


RFC 776                                                     January 1981
                                                        Assigned Numbers
Port or Socket Numbers



         Host Specific Functions

         Decimal   Octal     Description                      References
         -------   -----     -----------                      ----------
         65        101       Unassigned                            [JBP]
         67        103       Datacomputer at CCA                 [8,JZS]
         69        105       Unassigned                            [JBP]
         69        105       Trivial File Transfer              [47,KRS]
         71        107       NETRJS (EBCDIC) at UCLA-CCN      [5,17,RTB]
         73        111       NETRJS (ASCII-68) at UCLA-CCN    [5,17,RTB]
         75        113       NETRJS (ASCII-63) at UCLA-CCN    [5,17,RTB]
         77        115       any private RJE server                [JBP]
         79        117       Name or Finger                  [23,17,KLH]
         81        121       Unassigned                            [JBP]
         83        123       MIT ML Device                        [MOON]
         85        125       MIT ML Device                        [MOON]
         87        127       any terminal link                     [JBP]
         89        131       SU/MIT Telnet Gateway                 [MRC]
         91        133       MIT Dover Spooler                     [EBM]
         93        135       Unassigned                            [JBP]
         95        137       SUPDUP                             [15,MRC]
         97        141       Datacomputer Status                 [8,JZS]