RFC820

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Network Working Group J. Postel Request for Comments: 820 J. Vernon

                                                        January 1983

Obsoletes RFCs: 790, 776, 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, subject to the agreement between DARPA/IPTO and DDN/PMO about number allocation, documented in Appendix A of this RFC. 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: (213) 822-1511

ARPANET mail: POSTEL@ISIF

The ARPANET community is making the transition form the ARPANET to the ARPA Internet. This has been characterized as the NCP/TCP transition [63], although many other the protocols are involved, too. The working documents for the new Internet environment have been collected by the Network Information Center (NIC) in a book entitled the "Internet Protocol Transition Workbook" [62].

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 "Internet Protocol Transition Workbook" or in the old "Protocol Handbook" [17] prepared by the 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.


                                                    Assigned Numbers

Network Numbers


                    ASSIGNED NETWORK NUMBERS

The network numbers listed here are used as internet addresses by the Internet Protocol (IP) [33,62]. The IP uses a 32-bit address field and divides that address into a network part and a "rest" or local address part. The division takes 3 forms or classes.

  The first type of address, or class A, has a 7-bit network number
  and a 24-bit local address.  The highest-order bit is set to 0.
  This allows 128 class A networks.
                       1                   2                   3   
   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 
  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  |0|   NETWORK   |                Local Address                  |
  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                         Class A Address
  The second type of address, class B, has a 14-bit network number
  and a 16-bit local address.  The two highest-order bits are set to
  1-0.  This allows 16,384 class B networks.
                       1                   2                   3   
   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 
  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  |1 0|           NETWORK         |          Local Address        |
  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                         Class B Address
  The third type of address, class C, has a 21-bit network number
  and a 8-bit local address.  The three highest-order bits are set
  to 1-0-0.  This allows 2,097,152 class C networks.
                       1                   2                   3   
   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 
  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  |1 1 0|                    NETWORK              | Local Address |
  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
                         Class C Address

One commonly used notation for internet host addresses divides the 32-bit address into four 8-bit fields and specifies the value of each field as a decimal number with the fields separated by periods. This is called the "dotted decimal" notation. For example, the internet address of ISIF in dotted decimal is 010.002.000.052, or 10.2.0.52.


                                                    Assigned Numbers

Network Numbers


The dotted decimal notation will be used in the listing of assigned network numbers. The class A networks will have nnn.rrr.rrr.rrr, the class B networks will have nnn.nnn.rrr.rrr, and the class C networks will have nnn.nnn.nnn.rrr, where nnn represents part or all of a network number and rrr represents part or all of a local address or rest field.

For various reasons, the assigned numbers of networks are sometimes changed. To ease the transition the old number will be listed as well. These "old number" entries will be marked with a "T" following the number and preceeding the name.

To reflect the allocation of network identifiers among various categories (see Appendix A), a one-character code is placed to the left of the network number (in the column marked by an asterisk): R for Research and Development, D for DoD, and C for Commercial.

Assigned Network Numbers

Class A Networks

  * Internet Address  Name          Network               References
    ----------------  ----          -------               ----------
    000.rrr.rrr.rrr                 Reserved                   [JBP]
  R 001.rrr.rrr.rrr T BBN-PR        BBN Packet Radio Network  [JAW3]
  R 002.rrr.rrr.rrr T SF-PR-1       SF-1 Packet Radio Network  [JEM]
  R 003.rrr.rrr.rrr   RCC-NET       BBN RCC Network            [JGH]
  R 004.rrr.rrr.rrr   SATNET        Atlantic Satellite Network[DM11]
  D 005.rrr.rrr.rrr T DEMO-PR-1     Demo-1 Packet Radio Network[LCS]
  R 006.rrr.rrr.rrr T SF-PR-2       SF-2 Packet Radio Network  [JEM]
    007.rrr.rrr.rrr                 Unassigned                 [JBP]
  R 008.rrr.rrr.rrr   BBN-NET       BBN Network                [JGH]
  D 009.rrr.rrr.rrr T BRAGG-PR      Ft. Bragg Packet Radio Net [JEM]
  R 010.rrr.rrr.rrr   ARPANET       ARPANET              [17,1,REK2]
  R 011.rrr.rrr.rrr T UCLNET        University College London   [PK]
    012.rrr.rrr.rrr                 Unassigned                 [JBP]
    013.rrr.rrr.rrr                 Unassigned                 [JBP]
  C 014.rrr.rrr.rrr   PDN           Public Data Network       [REK2]
    015.rrr.rrr.rrr                 Unassigned                 [JBP]
    016.rrr.rrr.rrr                 Unassigned                 [JBP]
    017.rrr.rrr.rrr                 Unassigned                 [JBP]
  R 018.rrr.rrr.rrr   MIT           MIT Network          [10,43,NC3]
    019.rrr.rrr.rrr                 Unassigned                 [JBP]
    020.rrr.rrr.rrr                 Unassigned                 [JBP]
  D 021.rrr.rrr.rrr   EDN           DCEC EDN                   [EC5]
    022.rrr.rrr.rrr                 Unassigned                 [JBP]
  R 023.rrr.rrr.rrr   MITRE         MITRE Cablenet          [44,APS]
    024.rrr.rrr.rrr                 Unassigned                 [JBP]


                                                    Assigned Numbers

Network Numbers


  R 025.rrr.rrr.rrr   RSRE-PPSN     RSRE / PPSN                 [NM]
  D 026.rrr.rrr.rrr   MILNET        MILNET                     [HH6]
  R 027.rrr.rrr.rrr   NOSC-LCCN     NOSC / LCCN                [KTP]
  R 028.rrr.rrr.rrr   WIDEBAND      Wide Band Satellite Net   [CJW2]
    029.rrr.rrr.rrr                 Unassigned                 [JBP]
  R 030.rrr.rrr.rrr   DCN-UCL       UCL DCNET                   [PK]
    031.rrr.rrr.rrr                 Unassigned                 [JBP]
  R 032.rrr.rrr.rrr   UCL-TAC       UCL TAC                     [PK]
    033.rrr.rrr.rrr                 Unassigned                 [JBP]
    034.rrr.rrr.rrr                 Unassigned                 [JBP]
  R 035.rrr.rrr.rrr   RSRE-NULL     RSRE Null Network           [NM]
  R 036.rrr.rrr.rrr T SU-NET        Stanford University Network[JCM]
    037.rrr.rrr.rrr                 Unassigned                 [JBP]
    038.rrr.rrr.rrr                 Unassigned                 [JBP]
  R 039.rrr.rrr.rrr   SRINET        SRI Local Network         [GEOF]
    040.rrr.rrr.rrr                 Unassigned                 [JBP]
  R 041.rrr.rrr.rrr   BBN-LN-TEST   BBN Local Network Testbed  [KTP]
    042.rrr.rrr.rrr                 Unassigned                 [JBP]
    043.rrr.rrr.rrr                 Unassigned                 [JBP]
  R 044.rrr.rrr.rrr   AMPRNET       Amateur Radio Experiment Net[HM]
  R 045.rrr.rrr.rrr T C3-PR         Testbed Development PRNET  [BG5]
  R 046.rrr.rrr.rrr   UCB-ETHER     UC Berkeley Ethernet       [SXL]
  R 047.rrr.rrr.rrr T SAC-PR        SAC Packet Radio Network   [BG5]
  R 048.rrr.rrr.rrr   NDRE-TIU      NDRE-TIU                   [PS3]
    049.rrr.rrr.rrr                 Unassigned                 [JBP]
  R 050.rrr.rrr.rrr   NDRE-RING     NDRE-RING                  [PS3]
    051.rrr.rrr.rrr                 Unassigned                 [JBP]
  R 052.rrr.rrr.rrr T ROCKWELL-PR   Rockwell Packet Radio Net  [EHP]
    053.rrr.rrr.rrr-126.rrr.rrr.rrr Unassigned                 [JBP]
    127.rrr.rrr.rrr                 Reserved                   [JBP]

Class B Networks

  * Internet Address  Name          Network               References
    ----------------  ----          -------               ----------
    128.000.rrr.rrr                 Reserved                   [JBP]
  R 128.001.rrr.rrr   BBN-TEST-B    BBN-GATE-TEST-B            [RH6]
  R 128.002.rrr.rrr   CMU-NET       CMU-Ethernet              [HDW2]
  R 128.003.rrr.rrr   LBL-CSAM      LBL-CSAM-RESEARCH          [MO1]
  R 128.004.rrr.rrr   DCNET         LINKABIT DCNET            [DLM1]
  R 128.005.rrr.rrr   FORDNET       FORD DCNET                [DLM1]
  R 128.006.rrr.rrr   RUTGERS       RUTGERS                   [CLH3]
  R 128.007.rrr.rrr   DFVLR         DFVLR DCNET Network       [HDC1]
  R 128.008.rrr.rrr   UMDNET        Univ of Maryland DCNET    [DLM1]
  R 128.009.rrr.rrr   ISI-NET       ISI Local Network          [CMR]
  R 128.010.rrr.rrr   PURDUE-CS     Purdue Computer Science    [CXK]
  R 128.011.rrr.rrr   BBN-CRONUS    BBN DOS Project         [12,WIM]
  R 128.012.rrr.rrr   SU-NET        Stanford University Net    [JCM]


                                                    Assigned Numbers

Network Numbers


  D 128.013.rrr.rrr   MATNET        Mobile Access Terminal Net[DM11]
  R 128.014.rrr.rrr   BBN-SAT-TEST  BBN SATNET Test Net       [DM11]
  R 128.015.rrr.rrr   S1NET         LLL-S1-NET                [EAK1]
  R 128.016.rrr.rrr   UCLNET        University College London   [PK]
    128.017.rrr.rrr                 Unassigned                 [JBP]
    128.018.rrr.rrr                 Unassigned                 [JBP]
    128.019.rrr.rrr                 Unassigned                 [JBP]
    128.020.rrr.rrr                 Unassigned                 [JBP]
  R 128.021.rrr.rrr   SF-PR-1       SF-1 Packet Radio Network  [JEM]
  R 128.022.rrr.rrr   SF-PR-2       SF-2 Packet Radio Network  [JEM]
  R 128.023.rrr.rrr   BBN-PR        BBN Packet Radio Network  [JAW3]
  R 128.024.rrr.rrr   ROCKWELL-PR   Rockwell Packet Radio Net  [EHP]
  D 128.025.rrr.rrr   BRAGG-PR      Ft. Bragg Packet Radio Net [JEM]
  D 128.026.rrr.rrr   SAC-PR        SAC Packet Radio Network   [BG5]
  D 128.027.rrr.rrr   DEMO-PR-1     Demo-1 Packet Radio Network[LCS]
  D 128.028.rrr.rrr   C3-PR         Testbed Development PR NET [BG5]
    128.029.rrr.rrr-191.254.rrr.rrr Unassigned                 [JBP]
    191.255.rrr.rrr                 Reserved                   [JBP]

Class C Networks

  * Internet Address  Name          Network               References
    ----------------  ----          -------               ----------
    192.000.000.rrr                 Reserved                   [JBP]
  R 192.000.001.rrr   BBN-TEST-C    BBN-GATE-TEST-C            [RH6]
    192.000.002.rrr-192.000.255.rrr Unassigned                 [JBP]
  R 192.001.xxx.rrr-192.004.xxx.rrr BBN local networks         [SGC]
  R 192.005.001.rrr   CISLNET       CISL Multics Network       [CH2]
  R 192.005.002.rrr   WISC          Univ of Wisconsin Madison [RS23]
  C 192.005.003.rrr   HP-DESIGN-AIDS HP Design Aids            [NXK]
  C 192.005.004.rrr   HP-TCG-UNIX   Hewlett Packard TCG Unix   [NXK]
  D 192.005.005.rrr   BRLNET        BRLNET                  [1,MJM2]
  D 192.005.006.rrr   MINET         MINET                    [1,DHH]
  R 192.005.007.rrr   CIT-CS-NET    Caltech-CS-Net          [65,DSW]
  R 192.005.008.rrr   WASHINGTON    University of Washington  [JAR4]
  R 192.005.009.rrr   AERONET       Aerospace Labnet         [9,LCN]
  R 192.005.010.rrr   ECLNET        USC-ECL-CAMPUS-NET         [MXB]
  R 192.005.011.rrr   CSS-RING      SEISMIC-RESEARCH-NET       [RR2]
  R 192.005.012.rrr   UTAH-NET      UTAH-COMPUTER-SCIENCE-NET  [RF1]
    192.005.013.rrr                 Unassigned                 [JBP]
    192.005.014.rrr                 Unassigned                 [JBP]
    192.005.015.rrr                 Unassigned                 [JBP]
    192.005.016.rrr                 Unassigned                 [JBP]
    192.005.017.rrr                 Unassigned                 [JBP]
    192.005.018.rrr                 Unassigned                 [JBP]
    192.005.019.rrr                 Unassigned                 [JBP]
    192.005.020.rrr                 Unassigned                 [JBP]
  D 192.005.021.rrr   BRLNET1       BRLNET1                 [1,MJM2]


                                                    Assigned Numbers

Network Numbers


  D 192.005.022.rrr   BRLNET2       BRLNET2                 [1,MJM2]
  D 192.005.022.rrr   BRLNET3       BRLNET3                 [1,MJM2]
  D 192.005.022.rrr   BRLNET4       BRLNET4                 [1,MJM2]
  D 192.005.022.rrr   BRLNET5       BRLNET54                [1,MJM2]
    192.005.026.rrr-223.255.254.rrr Unassigned                 [JBP]
    223.255.255.rrr                 Reserved                   [JBP]

Other Reserved Internet Addresses

    Internet Address  Name          Network               References
    ----------------  ----          -------               ----------
    224.000.000.000-255.255.255.255 Reserved                   [JBP]

Network Totals

  Assigned
     Class         A         B         C     Total
     Research     26        19      1033      1078
     Defense       4         5         7        16
     Commercial    1         0         2         3
     Total        31        24      1042      1097
  Maximum Allowed
     Class         A         B         C     Total
     Research      8      1024     65536     66568
     Defense      24      3072    458752    461848
     Commercial   94     12286   1572862   1585242
     Total       126     16382   2097150   2113658







                                                    Assigned Numbers

Internet Version Numbers


               ASSIGNED INTERNET VERSION NUMBERS

In the Internet Protocol (IP) [33,62] 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                 [33,62,JBP]
      5      5         ST Datagram Mode                     [20,JWF]
   6-14   6-16         Unassigned                              [JBP]
     15     17         Reserved                                [JBP]
               ASSIGNED INTERNET PROTOCOL NUMBERS

In the Internet Protocol (IP) [33,62] 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                          References
  -------    -----      ----------------                  ----------
       0       0         Reserved                              [JBP]
       1       1         ICMP                            [53,62,JBP]
       2       2         Unassigned                            [JBP]
       3       3         Gateway-to-Gateway             [48,49,JFH2]
       4       4         CMCC Gateway Monitoring Message  [18,19,MB]
       5       5         Stream (ST)                        [20,JWF]
       6       6         Transmission Control (TCP)      [34,62,JBP]
       7       7         UCL                                    [PK]
       8      10         Exterior Gateway Protocol (EGP)    [66,RH6]
       9      11         Unassigned                            [JBP]
      10      12         BBN RCC Monitoring                    [SGC]
      11      13         NVP                                [12,SC3]
      12      14         PUP                                [4,EAT3]
   13-14   15-16         Unassigned                            [JBP]
      15      17         Cross Net Debugger (XNET)         [25,JFH2]
      16      20         Chaos Stream                          [NC3]
      17      21         User Datagram (UDP)             [42,62,JBP]
      18      22         Multiplexing                       [13,JBP]
      19      23         DCN Measurement Subsystems           [DLM1]
      20      24         Host Monitoring (HMP)              [55,RH6]
      21      25         Packet Radio Measurement              [ZSU]


                                                    Assigned Numbers

Internet Protocol Numbers


      22      26         XEROX NS IP                        [59,JBP]
      23      27         Trunk-1                               [BML]
      24      30         Trunk-2                               [BML]
   25-60   31-74         Unassigned                            [JBP]
      61      75         any host internal protocol            [JBP]
      62      76         CFTP                              [60,HCF2]
      63      77         any local network                     [JBP]
      64     100         SATNET and Backroom EXPAK            [DM11]
      65     101         MIT Subnet Support                    [NC3]
      66     102         MIT VAX Remote Disk Protocol          [MBG]
      67     103         Internet Pluribus Packet Core        [DM11]
      68     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]















                                                    Assigned Numbers

Port Numbers


                     ASSIGNED PORT NUMBERS

Ports are used in the TCP [34,62] 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 UDP [42,62].

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   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]
  20        24        File Transfer (Default Data)       [36,62,JBP]
  21        25        File Transfer (Control)            [36,62,JBP]
  23        27        Telnet                             [41,62,JBP]
  25        31        SMTP                               [54,62,JBP]
  27        33        NSW User System FE                    [14,RHT]
  29        35        MSG ICP                               [29,RHT]
  31        37        MSG 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                        [38,62,JBP]
  43        53        WhoIs                             [57,62,JAKE]
  45        55        Message Processing Module (receive)   [37,JBP]
  46        56        MPM (default send)                    [37,JBP]
  47        57        NI FTP                                 [50,SK]
  49-53     61-65     Unassigned                               [JBP]


                                                    Assigned Numbers

Port Numbers


  55        67        ISI Graphics Language                  [3,RB6]
  57        71        Unassigned                               [JBP]
  59        73        Augment File Mover                       [WWB]
  61        75        NIMAIL                                 [56,SK]
  63        77        Unassigned                               [JBP]
  65        101       Unassigned                               [JBP]
  67        103       Datacomputer at CCA                    [8,JZS]
  69        105       Trivial File Transfer              [47,62,KRS]
  71        107       NETRJS                              [5,17,RTB]
  72        110       NETRJS                              [5,17,RTB]
  73        111       NETRJS                              [5,17,RTB]
  74        112       NETRJS                              [5,17,RTB]
  75        113       Unassigned                               [JBP]
  77        115       any private RJE server                   [JBP]
  79        117       Name or Finger                     [23,17,KLH]
  81        121       HOSTS2 Name Server                      [EAK1]
  83        123       MIT ML Device                            [DPR]
  85        125       MIT ML Device                            [DPR]
  87        127       any terminal link                        [JBP]
  89        131       SU/MIT Telnet Gateway                    [MRC]
  91        133       MIT Dover Spooler                        [EBM]
  93        135       Device Control Protocol                  [DCT]
  95        137       SUPDUP                                [15,MRC]
  97        141       Datacomputer Status                    [8,JZS]
  99        143       Metagram Relay                          [GEOF]
  101       145       NIC Host Name Server              [64,62,JAKE]
  103       147       CSNET Mailbox Name Server (Telnet)   [58,MHS1]
  105       151       CSNET Mailbox Name Server (Program)  [58,MHS1]
  107       153       Remote Telnet Service                 [61,JBP]
  109-129   155-201   Unassigned                               [JBP]
  131       203       Datacomputer                           [8,JZS]
  132-223   204-337   Reserved                                 [JBP]
  224-241   340-361   Unassigned                               [JBP]
  243       363       Survey Measurement                      [2,AV]
  245       365       LINK                                  [7,RDB2]
  247-255   367-377   Unassigned                               [JBP]








                                                    Assigned Numbers

Autonomous System Numbers


               ASSIGNED AUTONOMOUS SYSTEM NUMBERS

The Exterior Gateway Protocol (EGP) [66] specifies that groups of gateways may for 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   Description                                   References
  -------   -----------                                   ----------
        0   Reserved                                           [JBP]
        1   The BBN Gateways                                   [JBP]
  2-65534   Unassigned                                         [JBP]
    65535   Reserved                                           [JBP]
                 ASSIGNED ARPANET 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 years 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 [1].

Link Assignments:

  Decimal   Octal     Description                         References
  -------   -----     -----------                         ----------
  0         0         AHHP Control Messages              [28,17,JBP]
  1         1         Reserved                                 [JBP]
  2-71      2-107     AHHP Regular Messages              [28,17,JBP]
  72-149    110-225   Reserved                                 [JBP]
  150       226       Xerox NS IP                           [59,LLG]
  151       227       Unassigned                               [JBP]
  152       230       PARC Universal Protocol               [4,EAT3]
  153       231       TIP Status Reporting                     [JGH]
  154       232       TIP Accounting                           [JGH]
  155       233       Internet Protocol (regular)        [33,62,JBP]
  156-158   234-236   Internet Protocol (experimental)   [33,62,JBP]
  159-195   237-303   Unassigned                               [JBP]
  196-255   304-377   Experimental Protocols                   [JBP]
  248-255   370-377   Network Maintenance                      [JGH]



                                                    Assigned Numbers

Ethernet Numbers of Interest


                  ETHERNET NUMBERS OF INTEREST

Many of the networks of all classes are Ethernets (10Mb) or Experimental Ethernets (3Mb). These systems use a message "type" field in much the same way the ARPANET uses the "link" field.

Assignments:

  Ethernet          Exp. Ethernet    Description          References
  --------------    --------------   -----------          ----------
  decimal    Hex    decimal  octal
     512   02,00        512   1000   XEROX PUP              [4,EAT3]
    1536   06,00       1536   3000   XEROX NS IDP           [59,LLG]
    2048   08,00        513   1001   DOD IP              [33,62,JBP]
    2054   08,06        -      -     Address Res           [67,DCP1]
              ASSIGNED PUBLIC DATA NETWORK NUMBERS

One of the Internet Class A Networks is the international system of Public Data Networks. This section lists the mapping between the Internet Addresses and the Public Data Network Addresses.

Assignments:

  Internet          Public Data Net     Description       References
  ---------------   ---------------     -----------       ----------
  014.000.000.000                       Reserved               [JBP]
  014.000.000.001   311031700035 00     PURDUE-TN              [CXK]
  014.000.000.002   311060800027 00     UWISC-TN               [CXK]
  014.000.000.003   311030200024 00     UDEL-TN                [CXK]
  014.000.000.004   234219200149 23     UCL-VTEST               [PK]
  014.000.000.005   234219200300 23     UCL-TG                  [PK]
  014.000.000.006   234219200300 25     UK-SATNET               [PK]
  014.000.000.007-014.255.255.254       Unassigned             [JBP]
  014.255.255.255                       Reserved               [JBP]









                                                    Assigned Numbers

Documents


                           DOCUMENTS
                           ---------

[1] BBN, "Specifications for the Interconnection of a Host and an

      IMP", Report 1822, Bolt Beranek and Newman, Cambridge,
      Massachusetts, May 1978.

[2] Bhushan, A., "A Report on the Survey Project", RFC 530,

      NIC 17375, 22 June 1973.

[3] Bisbey, R., D. Hollingworth, and B. Britt, "Graphics Language

      (version 2.1)", ISI/TM-80-18, USC/Information Sciences
      Institute, July 1980.

[4] Boggs, D., J. Shoch, E. Taft, and R. Metcalfe, "PUP: An

      Internetwork Architecture", XEROX Palo Alto Research Center,
      CSL-79-10, July 1979; also in IEEE Transactions on
      Communication, Volume COM-28, Number 4, April 1980.

[5] Braden, R., "NETRJS Protocol", RFC 740, NIC 42423,

      22 November 1977.  Also in [17].

[6] Bressler, B., "Remote Job Entry Protocol", RFC 407, NIC

      12112, 16 October 72.  Also in [17].

[7] Bressler, R., "Inter-Entity Communication -- An Experiment",

      RFC 441, NIC 13773, 19 January 1973.

[8] CCA, "Datacomputer Version 5/4 User Manual", Computer

      Corporation of America, August 1979.

[9] Aerospace, Internal Report, ATM-83(3920-01)-3, 1982.

[10] Clark, D., "Revision of DSP Specification", Local Network Note

      9, Laboratory for Computer Science, MIT, 17 June 1977.

[11] Clements, R., "FTPSRV -- Extensions for Tenex Paged Files",

      RFC 683, NIC 32251, 3 April 1975.  Also in [17].

[12] Macgregor, W., and D. Tappan, "The CRONUS Virtual Local

      Network", RFC 824, Bolt Beranek and Newman, Inc.,
      22 August 1982.

[13] Cohen, D. and J. Postel, "Multiplexing Protocol", IEN 90,

      USC/Information Sciences Institute, May 1979.




                                                    Assigned Numbers

Documents


[14] 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.

[15] Crispin, M., "SUPDUP Protocol", RFC 734, NIC 41953,

      7 October 1977.  Also in [17].

[17] Feinler, E. and J. Postel, eds., "ARPANET Protocol Handbook",

      NIC 7104, for the Defense Communications Agency by SRI
      International, Menlo Park, California, Revised January 1978.

[18] Flood Page, D., "Gateway Monitoring Protocol", IEN 131,

      February 1980.

[19] Flood Page, D., "CMCC Performance Measurement Message

      Formats", IEN 157, September 1980.

[20] Forgie, J., "ST - A Proposed Internet Stream Protocol",

      IEN 119, M.I.T. Lincoln Laboratory, September 1979.

[21] Forsdick, H., and A. McKenzie, "FTP Functional Specification",

      Bolt Beranek and Newman, Report 4051, August 1979.

[22] Harrenstien, K., J. Postel, "Time Server", IEN 142,

      April 1980.  Also in [17].

[23] Harrenstien, K., "Name/Finger", RFC 742, NIC 42758,

      30 December 1977.  Also in [17].

[24] Harvey, B., "One More Try on the FTP", RFC 691, NIC 32700,

      6 June 1975.

[25] Haverty, J., "XNET Formats for Internet Protocol Version 4",

      IEN 158, October 1980.

[27] McKenzie, A., "File Transfer Protocol", RFC 454, NIC 14333,

      16 February 1973.

[28] McKenzie,A., "Host/Host Protocol for the ARPA Network",

      NIC 8246, January 1972.  Also in [17].

[29] 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.


                                                    Assigned Numbers

Documents


[31] Postel, J., "Character Generator Process", RFC 429, NIC 13281,

      12 December 1972.

[32] Postel, J., "Discard Process", RFC 348, NIC 10427,

      30 May 1972.

[33] Postel, J., ed., "Internet Protocol - DARPA Internet Program

      Protocol Specification", RFC 791, USC/Information Sciences
      Institute, September 1981.

[34] Postel, J., ed., "Transmission Control Protocol - DARPA

      Internet Program Protocol Specification", RFC 793,
      USC/Information Sciences Institute, September 1981.

[35] Postel, J., "Echo Process", RFC 347, NIC 10426, 30 May 1972.

[36] Postel, J., "File Transfer Protocol", RFC 765, IEN 149,

      June 1980.

[37] Postel, J., "Internet Message Protocol", RFC 759, IEN 113,

      USC/Information Sciences Institute, August 1980.

[38] Postel, J., "Name Server", IEN 116, USC/Information Sciences

      Institute, August 1979.

[39] Postel, J., "Official Initial Connection Protocol", NIC 7101,

      11 June 1971.  Also in [17].

[40] Postel, J., "Telnet Protocol", RFC 318, NIC 9348,

      3 April 1972.

[41] Postel, J., "Telnet Protocol Specification", RFC 764, IEN 148,

      June 1980.

[42] Postel, J., "User Datagram Protocol", RFC 768 USC/Information

      Sciences Institute, August 1980.

[43] Reed, D., "Protocols for the LCS Network", Local Network Note

      3, Laboratory for Computer Science, MIT, 29 November 1976.

[44] Skelton, A., S. Holmgren, and D. Wood, "The MITRE Cablenet

      Project", IEN 96, April 1979.

[45] Crocker, D., "Standard for the Format of ARPA Internet Text

      Messages", RFC 822, Department of Electrical Engineering,
      University of Delawaugust 1982.



                                                    Assigned Numbers

Documents


[46] Sproull, R., and E. Thomas. "A Networks Graphics Protocol",

      NIC 24308, 16 August 1974.  Also in [17].

[47] Sollins, K., "The TFTP Protocol (revision 2)", RFC 783,

      MIT/LCS, June 1981.

[48] Strazisar, V., "Gateway Routing: An Implementation

      Specification", IEN 30, Bolt Berenak and Newman, April 1979.

[49] Strazisar, V., "How to Build a Gateway", IEN 109, Bolt Berenak

      and Newman, August 1979.

[50] The High Level Protocol Group, "A Network Independent File

      Transfer Protocol",  INWG Protocol Note 86, December 1977.

[51] Thomas, R., "A Resource Sharing Executive for the ARPANET",

      AFIPS Conference Proceedings, 42:155-163, NCC, 1973.

[52] Flood Page, D., "A Simple Message Generator", IEN 172, Bolt

      Berenak and Newman, March 1981.

[53] Postel, J., "Internet Control Message Protocol - DARPA

      Internet Program Protocol Specification", RFC 792,
      USC/Information Sciences Institute, September 1981.

[54] Postel, J., "Simple Mail Transfer Protocol", RFC 821,

      USC/Information Sciences Institute, August 1982.

[55] Littauer, B., "A Host Monitoring Protocol", IEN 197, Bolt

      Berenak and Newman, September 1981.

[56] Bennett, C., "A Simple NIFTP-Based Mail System", IEN 169,

      University College, London, January 1981.

[57] Harrenstien, K., and V. White, "Nicname/Whois", RFC 812, SRI

      International, March 1982.

[58] Solomon, M., L. Landweber, and D, Neuhengen, "The Design of

      the CSNET Name Server", CS-DN-2, University of Wisconsin,
      Madison, Revised November 1981.

[59] XEROX, "Internet Transport Protocols", XSIS 028112, Xerox

      Corporation, Stamford, Connecticut, December 1981.

[60] Forsdick, H., "CFTP", Network Message, Bolt Berenak and

      Newman, January 1982.



                                                    Assigned Numbers

Documents


[61] Postel, J., "Remote Telnet Service", RFC 818, USC/Information

      Sciences Institute, November 1982.

[62] Feinler, E., "Internet Protocol Transition Workbook", Network

      Information Center, SRI International, March 1982.

[63] Postel, J., "The NCP/TCP Transition Plan", RFC 801,

      USC/Information Sciences Institute, November 1981.

[64] Harrenstien, K., V. White, and E. Feinler, "Hostnames Server",

      RFC 811, SRI International, March 1982.

[65] Whelan, D., "The Caltech Computer Science Department Network",

      5052:DF:82, Caltech Computer Science Department, 1982.

[66] Rosen, E., "Exterior Gateway Protocol", RFC 827, Bolt Berenak

      and Newman, October 1982.

[67] Plummer, D., "An Ethernet Address Resolution Protocol or

      Converting Network Protocol Addresses to 48-bit Ethernet
      Addresses for Transmission on Ethernet Hardware", RFC 826, MIT
      LCS, November 1982.















                                                    Assigned Numbers

People


                             PEOPLE
                             ------

[RB6] Richard Bisbey ISI Bisbey@ISIB [RTB] Bob Braden UCLA Braden@ISIA [WWB] Bill Barns Tymshare Barns@OFFICE [MB] Michael Brescia BBN Brescia@BBN-Unix [RDB2] Robert Bressler BBN Bressler@BBN-Unix [MXB] Mark Brown USC Mark@USC-ECLB [EC5] Ed Cain DCEC cain@EDN-Unix [SC3] Steve Casner ISI Casner@ISIB [NC3] J. Noel Chiappa MIT JNC@MIT-XX [SGC] Steve Chipman BBN Chipman@BBNA [HDC1] Horst Clausen DFVLR Clausen@ISID [DC] Danny Cohen ISI Cohen@ISIB [MRC] Mark Crispin Stanford Admin.MRC@SU-SCORE [RF1] Randy Frank UTAH Frank@UTAH-20 [JAKE] Jake Feinler SRI Feinler@SRI-KL [JWF] Jim Forgie LL Forgie@BBNC [HCF2] Harry Forsdick BBN Forsdick@BBNG [SWG] Stu Galley MIT SWG@MIT-DMS [LLG] Larry Garlick XEROX Garlick@PARC-MAXC [BG5] Bob Gilligan SRI Gilligan@ISID [GEOF] Geoff Goodfellow SRI Geoff@DARCOM-KA [MBG] Michael Greenwald MIT-LCS Greenwald@MIT-Multics [KLH] Ken Harrenstien SRI KLH@NIC [JFH2] Jack Haverty BBN Haverty@BBN-Unix [CLH3] Charles Hedrick RUTGERS Hedrick@RUTGERS [JGH] Jim Herman BBN Herman@BBN-Unix [HH6] Heidi Heiden DCA Heiden@BBNC [PLH] Peter Higginson UCL UKSAT@ISID [RH6] Robert Hinden BBN Hinden@BBN-Unix [CH2] Charles Hornig Honeywell Hornig@MIT-Multics [DHH] Doug Hunt BBN DHunt@BBN-Unix [REK2] Robert Kahn ARPA Kahn@ISIA [NXK] Neil Katin HP hpda.neil@BERKELEY [CXK] Chris Kent PURDUE cak@PURDUE [SK] Steve Kille UCL UKSAT@ISID [EAK1] Earl Killian LLL EAK@MIT-MC [PK] Peter Kirstein UCL Kirstein@ISIA [SXL] Sam Leffler Berkeley sam@BERKELEY [BML] Barry Leiner ARPA Leiner@ISIA [WIM] William Macgregor BBN macg@BBN [NM] Neil MacKenzie RSRE T45@ISID [HM] Hank Magnuski --- JOSE@PARC-MAXC [JEM] Jim Mathis SRI Mathis@SRI-KL [DM11] Dale McNeill BBN mcneill@BBN-Unix [DLM1] David Mills LINKABIT Mills@ISID [JCM] Jeff Mogul STANFORD Mogul@SU-SCORE


                                                    Assigned Numbers

People


[EBM] Eliot Moss MIT EBM@MIT-XX [MJM2] Mike Muuss BRL Mike@BRL [LCN] Lou Nelson AEROSPACE Lou@AEROSPACE [MO2] Michael O'Brien RAND OBrien@RAND-Unix [MO1] Mike O'Dell LBL mo@LBL-Unix [EHP] Ed Perry SRI Perry@SRI-KL [DCP1] David Plummer MIT DCP@MIT-MC [KTP] Ken Pogran BBN Pogran@BBN-Unix [JBP] Jon Postel ISI Postel@ISIF [DPR] David Reed MIT-LCS DPR@MIT-XX [JAR4] Jim Rees WASHINGTON JIM@WASHINGTON [CMR] Craig Rogers ISI Rogers@ISIB [RR2] Raleigh Romine Teledyne romine@SEISMO [RS23] Russel Sandberg WISC root@UWISC [JZS] Joanne Sattely CCA JZS@CCA [LCS] Lou Schreier SRI Schreier@ISID [APS] Anita Skelton MITRE skelton@MITRE [KRS] Karen Sollins MIT Sollins@MIT-XX [MHS1] Marvin Solomon WISC Solomon@UWISC [PS3] Paal Spilling NDRE Paal@DARCOM-KA [ZSU] Zaw-Sing Su SRI ZSu@SRI-TSC [EAT3] Ed Taft XEROX Taft.PA@PARC-MAXC [DCT] Dan Tappan BBN Tappan@BBNG [RHT] Robert Thomas BBN BThomas@BBNG [AV] Al Vezza MIT AV@MIT-XX [HDW2] Howard Wactlar CMU Wactlar@CMU-10B [CJW2] Cliff Weinstein LL cjw@LL-11 [JAW3] Jil Westcott BBN Westcott@BBNF [DSW] Dan Whelan Caltech Dan@CIT-20












                                                    Assigned Numbers

APPENDIX A


                           APPENDIX A
                           ----------

This appendix summarizes the agreements reached by the DDN/PMO and DARPA at a September 1982 meeting concerning the allocation and assignment of the various numbers associated with DoD Protocol Standards and the DARPA Experimental Standards.

Recommended policy is summarized for each type of number assignment of concern:

  Network Identifiers used by the Internet Protocol
     It is recommended that the available number spaces for class A,
     B, and C network addresses be allocated among R&D, DoD and
     commercial uses, and that assignments of these addresses be the
     responsibility respectively of DARPA, DCA PCCO/DDN and the
     National Bureau of Standards.  The recommended allocations are
     given below.
     Class A
        R&D allocation:          8 nets    assigned by:  ARPA
        DoD allocation:         24 nets    assigned by:  TBD
        Commercial allocation:  94 nets    assigned by:  TBD
        Reserved Addresses:  0,127
     Class B
        R&D allocation:          1024 nets    assigned by:  ARPA
        DoD allocation:          3072 nets    assigned by:  TBD
        Commercial allocation:  12286 nets    assigned by:  TBD
        Reserved Addresses:  0,16383
     Class C
        R&D allocation:           65536 nets    assigned by:  ARPA
        DoD allocation:          458725 nets    assigned by:  TBD
        Commercial allocation:  1572862 nets    assigned by:  TBD
        Reserved Addresses:  0,2097151
     Class D
        All addresses in this class are reserved for future use,
        possibly in support of multicast services.  They should be
        allocated to R&D use for the present.



                                                    Assigned Numbers

APPENDIX A


     Within the R&D community, it will be the policy that network
     identifiers will only be granted to applicants who show
     evidence that they are acquiring standard Bolt Beranek and
     Newman gateway software or have implemented or are acquiring a
     gateway meeting the External Gateway Protocol requirements.
     Acquisition of the Berkeley BSD 4.2 UNIX software might be
     considered evidence of the latter.
     Experimental networks which later become operational need not
     be renumbered if that would cause hardships.  Rather, the
     identifiers could be moved from R&D to DoD or Commercial
     status.  Thus, network identifiers may change state among R&D,
     DoD and commercial, but the number of identifiers allocated to
     each use should remain constant.  To make possible this fluid
     assignment, it is recommended that the network identifier
     spaces not be allocated by simple partition but rather by
     specific assignment.  It is recommended that DDN/PMO or its
     designee keep track of the assignments made by DARPA, DDN and
     NBS to ensure that allocation remains as suggested.
  Protocol Identifiers
     In general, all assignments will be made by the R&D community,
     but any numbers which become R&D, DoD, national or
     international standards will be marked as such in this RFC.
     Protocol identifiers 0 and 255 are reserved.
     95 protocol identifiers are allocated for assignment to DoD
     standards, 32 for R&D use, and 127 for Commercial, national or
     international standards.
  Port Numbers
     A recommendation for allocation and assignment of port numbers
     is to be developed jointly by representatives of the ICCB and
     PSTP.
  ARPANET Link Numbers
     All unnecessary link number usage will be eliminated by joint
     effort of the ICCB, PSTP and BBN.  BBN will give consideration
     to the use of link numbers to promote interoperability among
     various ARPANET interfaces and report to the ICCB, PSTP and
     DDN/PMO.  Examples of possible interoperability issues are:




                                                    Assigned Numbers

APPENDIX A


        (i)   interoperability of 1822 and X.25 interfaces
        (ii)  interoperability of SIP and other interfaces
        (iii) logical addressing or other special services
  IP Version Numbers
     These numbers will be assigned only by the R&D community for
     the purpose of exploring alternatives in internet protocol
     service expansion, such as inclusion of stream protocol (ST)
     services.
  TCP, IP and Telnet Option Identifiers
     These numbers will be assigned by the R&D community.  Any
     permanent or experimental assignments will be identified in the
     documents specifying those protcols.

Implementation:

  This policy recommendation has not been fully implemented as yet.
  Currently Jon Postel is acting coordinator for all number
  assignments.