rfc900.txt

RFC 相关的技术文档

Network Working Group                                        J. Reynolds
Request for Comments: 900                                      J. Postel
                                                                     ISI
Obsoletes RFCs:  870, 820,                                     June 1984
790, 776, 770, 762, 758, 755,
750, 739, 604, 503, 433, 349
Obsoletes IENs:  127, 117, 93


                            ASSIGNED NUMBERS


Status of this Memo

   This memo is an official status report on the numbers used in
   protocols in the ARPA-Internet community.

Introduction

   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 Joyce Reynolds.  The assignment of numbers is also handled by
   Joyce.  If you are developing a protocol or application that will
   require the use of a link, socket, port, protocol, network number,
   etc., please contact Joyce to receive a number assignment.

      Joyce Reynolds
      USC - Information Sciences Institute
      4676 Admiralty Way
      Marina del Rey, California  90292-6695

      Phone: [phone]

      ARPA mail: [e-mail]

   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" [31] or in the old
   "ARPANET Protocol Handbook" [32] prepared by the NIC.  Some of the
   items listed are undocumented.  Further information on protocols can
   be found in the memo "Official Protocols" [83].

   In all cases the name and mailbox of the responsible individual is
   indicated.  In the lists that follow, a bracketed entry, e.g.,
   [31,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.  Whenever possible, this "iii" is a NIC
   Ident.




Reynolds & Postel                                               [Page 1]



Assigned Numbers                                                 RFC 900
Network Numbers


                        ASSIGNED NETWORK NUMBERS

   The network numbers listed here are used as internet addresses by the
   Internet Protocol (IP) [31,71].  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 1-1-0.  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

      Note:  No addresses are allowed with the three highest-order bits
      set to 1-1-1.  These addresses (sometimes called "class D") are
      reserved.




Reynolds & Postel                                               [Page 2]



Assigned Numbers                                                 RFC 900
Network Numbers


   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 USC-ISIF.ARPA in dotted decimal is 010.002.000.052, or
   10.2.0.52.

   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.

   There are four catagories of users of Internet Addresses: Research,
   Defense, Government (Non-Defense), and Commercial.  To reflect the
   allocation of network identifiers among the categories, a
   one-character code is placed to the left of the network number: R for
   Research, D for Defense, G for Government, and C for Commercial (see
   Appendix A for further details on this division of the network
   identification).

   Network numbers are assigned for networks that are connected to the
   ARPA-Internet and DDN-Internet, and for independent networks that use
   the IP family protocols (these are usually commercial).  These
   independent networks are marked with an asterisk preceeding the
   number.

   The administrators of independent networks must apply separately for
   permission to interconnect their network with either the
   ARPA-Internet of the DDN-Internet.  Independent networks need not be
   listed in the working tables of either the ARPA-Internet or
   DDN-Internet hosts or gateways.

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












Reynolds & Postel                                               [Page 3]



Assigned Numbers                                                 RFC 900
Network Numbers


   Assigned Network Numbers

   Class A Networks

      * Internet Address  Name          Network               References
      - ----------------  ----          -------               ----------
        000.rrr.rrr.rrr                 Reserved                   [JBP]
      R 004.rrr.rrr.rrr   SATNET        Atlantic Satellite Network[DM11]
      D 006.rrr.rrr.rrr T YPG-NET-TEMP  Yuma Proving Grounds     [7,BXA]
      D 007.rrr.rrr.rrr T EDN-TEMP      DCEC EDN                   [EC5]
      R 008.rrr.rrr.rrr T BBN-NET-TEMP  BBN Network               [JSG5]
      R 010.rrr.rrr.rrr   ARPANET       ARPANET              [7,32,REK2]
      D 011.rrr.rrr.rrr   DODIIS        DoD INTEL INFO SYS         [AY7]
      C 012.rrr.rrr.rrr   ATT           ATT, Bell Labs            [MH13]
      C 014.rrr.rrr.rrr   PDN           Public Data Network       [REK4]
      R 018.rrr.rrr.rrr T MIT-TEMP      MIT Network         [15,82,DDC2]
      D 023.rrr.rrr.rrr   DDN-TC-NET    DDN-TestCell-Network       [DXH]
      D 024.rrr.rrr.rrr   MINET         MINET                    [7,DHH]
      R 025.rrr.rrr.rrr   RSRE-EXP      RSRE Experimental           [NM]
      D 026.rrr.rrr.rrr   MILNET        MILNET                    [FLM2]
      R 027.rrr.rrr.rrr T NOSC-LCCN-TEMPNOSC / LCCN                [RH6]
      R 028.rrr.rrr.rrr   WIDEBAND      Wide Band Satellite Net   [CJW2]
      R 032.rrr.rrr.rrr   UCL-TAC       UCL TAC                     [PK]
      R 036.rrr.rrr.rrr T SU-NET-TEMP   Stanford University Network[JCM]
      R 039.rrr.rrr.rrr T SRINET-TEMP   SRI Local Network         [GEOF]
      R 041.rrr.rrr.rrr   BBN-TEST-A    BBN-GATE-TEST-A            [RH6]
      R 044.rrr.rrr.rrr   AMPRNET       Amateur Radio Experiment Net[HM]
        001.rrr.rrr.rrr-003.rrr.rrr.rrr Unassigned                 [JBP]
        005.rrr.rrr.rrr                 Unassigned                 [JBP]
        009.rrr.rrr.rrr                 Unassigned                 [JBP]
        013.rrr.rrr.rrr                 Unassigned                 [JBP]
        015.rrr.rrr.rrr-017.rrr.rrr.rrr Unassigned                 [JBP]
        019.rrr.rrr.rrr-022.rrr.rrr.rrr Unassigned                 [JBP]
        029.rrr.rrr.rrr-031.rrr.rrr.rrr Unassigned                 [JBP]
        033.rrr.rrr.rrr-035.rrr.rrr.rrr Unassigned                 [JBP]
        037.rrr.rrr.rrr-038.rrr.rrr.rrr Unassigned                 [JBP]
        040.rrr.rrr.rrr                 Unassigned                 [JBP]
        042.rrr.rrr.rrr-043.rrr.rrr.rrr Unassigned                 [JBP]
        045.rrr.rrr.rrr-126.rrr.rrr.rrr Unassigned                 [JBP]
        127.rrr.rrr.rrr                 Reserved                   [JBP]










Reynolds & Postel                                               [Page 4]



Assigned Numbers                                                 RFC 900
Network Numbers


   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         [JS38]
      R 128.004.rrr.rrr   DCNET         LINKABIT DCNET         [52,DLM1]
      R 128.005.rrr.rrr   FORDNET       FORD DCNET             [52,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 [52,DLM1]
      R 128.009.rrr.rrr   ISI-NET       USC-ISI Local Network      [CMR]
      R 128.010.rrr.rrr   PURDUE-CS     Purdue Computer Science    [CAK]
      R 128.011.rrr.rrr   BBN-CRONUS    BBN DOS Project         [48,WIM]
      R 128.012.rrr.rrr   SU-NET        Stanford University Net    [JCM]
      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]
      D 128.017.rrr.rrr   MATNET-ALT    Mobile Access Terminal Alt[DM11]
      R 128.018.rrr.rrr   SRINET        SRI Local Network         [GEOF]
      D 128.019.rrr.rrr   EDN           DCEC EDN                   [EC5]
      D 128.020.rrr.rrr   BRLNET        BRLNET                  [7,MJM2]
      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]
      R 128.029.rrr.rrr   MITRE         MITRE Cablenet          [86,APS]
      R 128.030.rrr.rrr   MIT-NET       MIT Local Network         [DDC2]
      R 128.031.rrr.rrr   MIT-RES       MIT Research Network      [DDC2]
      R 128.032.rrr.rrr   UCB-ETHER     UC Berkeley Ethernet      [DAM1]
      R 128.033.rrr.rrr   BBN-NET       BBN Network               [JSG5]
      R 128.034.rrr.rrr   NOSC-LCCN     NOSC / LCCN                [RH6]
      R 128.035.rrr.rrr   CISLTESTNET1  Honeywell            [43,44,RK1]
      R 128.036.rrr.rrr   YALE-NET      YALE NET                [96,JO5]
      D 128.037.rrr.rrr   YPG-NET       Yuma Proving Grounds     [7,BXA]
      D 128.038.rrr.rrr   NSWC-NET      NSWC Local Host Net       [RLH2]
      R 128.039.rrr.rrr   NTANET        NDRE-TIU                   [PS3]
      R 128.040.rrr.rrr   UCL-NET-A     UCL                        [RC7]
      R 128.041.rrr.rrr   UCL-NET-B     UCL                        [RC7]
      R 128.042.rrr.rrr   RICE-NET      Rice University Net  [52,96,PGM]
      R 128.043.rrr.rrr   CRANET        CANADA REF ARPANET      [7,JR17]


Reynolds & Postel                                               [Page 5]



Assigned Numbers                                                 RFC 900
Network Numbers


      D 128.044.rrr.rrr   WSMR-NET      White Sands Network        [TBS]
      D 128.045.rrr.rrr   DODIIS-S1     DoD INTEL INFO SYS         [AY5]
      D 128.046.rrr.rrr   DODIIS-S2     DoD INTEL INFO SYS         [AY5]
      D 128.047.rrr.rrr   TACTNET       Tactical Packet Net      [6,KTP]
      C*128.048.rrr.rrr   UCDLA-NET     UCDLA MELVYL Network     [7,CXL]
      R 128.049.rrr.rrr   NOSC-ETHER    NOSC Ethernet          [96,RLB3]
      G 128.050.rrr.rrr   COINS Network COINS On-Line Intel Net    [RXS]
      G 128.051.rrr.rrr   COINSTNET     COINS TEST NETWORK         [RXS]
      R 128.052.rrr.rrr   MIT-AI-NET    MIT AI NET              [96,MDC]
      R 128.053.rrr.rrr   SAC-PR-2      SAC PRNET Number 2         [BG5]
        128.054.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 192.001.000.rrr-192.003.255.rrr BBN local networks         [SGC]
        192.004.000.rrr-192.004.255.rrr Unassigned                 [JBP]
      R 192.005.001.rrr   CISLHYPERNET  Honeywell                  [RK1]
      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]
      R 192.005.005.rrr   DEC-MRNET     DEC Marlboro Ethernet   [92,KWP]
      R 192.005.006.rrr   DEC-MRRAD     DEC Marlboro Developmt  [92,KWP]
      R 192.005.007.rrr   CIT-CS-NET    Caltech-CS-Net          [95,DSW]
      R 192.005.008.rrr   WASHINGTON    University of Washington  [JAR4]
      R 192.005.009.rrr   AERONET       Aerospace Labnet         [2,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]
      R 192.005.013.rrr   CCNET         Compion Network         [96,FAS]
      R 192.005.014.rrr   RAND-NET      RAND Network            [96,JDG]
      R 192.005.015.rrr   NYU-NET       NYU Network                [EF5]
      R 192.005.016.rrr   LANL-LAND     Los Alamos Dev LAN     [96,JC11]
      R 192.005.017.rrr   NRL-NET       Naval Research Lab          [AP]
      R 192.005.018.rrr   IPTO-NET      ARPA-IPTO Office Net      [REK2]
      R 192.005.019.rrr   UCIICS        UCI-ICS Res Net            [MXR]
      R 192.005.020.rrr   CISLTTYNET    Honeywell                  [RK1]
      D 192.005.021.rrr   BRLNET1       BRLNET1                 [7,MJM2]
      D 192.005.022.rrr   BRLNET2       BRLNET2                 [7,MJM2]
      D 192.005.023.rrr   BRLNET3       BRLNET3                 [7,MJM2]
      D 192.005.024.rrr   BRLNET4       BRLNET4                 [7,MJM2]
      D 192.005.025.rrr   BRLNET5       BRLNET5                 [7,MJM2]
      D 192.005.026.rrr   NSRDCOA-NET   NSRDC Office Auto Net      [TC4]


Reynolds & Postel                                               [Page 6]



Assigned Numbers                                                 RFC 900
Network Numbers


      D 192.005.027.rrr   DTNSRDC-NET   DTNSRDC-NET                [TC4]
      R 192.005.028.rrr   RSRE-NULL     RSRE-NULL                   [NM]
      R 192.005.029.rrr   RSRE-ACC      RSRE-ACC                    [NM]
      R 192.005.030.rrr   RSRE-PR       RSRE-PR                     [NM]
      R*192.005.031.rrr   SIEMENS-NET   Siemens Research Network   [PXN]
      R 192.005.032.rrr   CISLTESTNET2  Honeywell            [43,44,RK1]
      R 192.005.033.rrr   CISLTESTNET3  Honeywell            [27,28,RK1]
      R 192.005.034.rrr   CISLTESTNET4  Honeywell            [27,28,RK1]
      R 192.005.035.rrr   RIACS         USRA                   [96,RLB1]
      R 192.005.036.rrr   CORNELL-CS    CORNELL CS Research     [96,DK2]
      R 192.005.037.rrr   UR-CS-NET     U of R CS 3Mb Net       [51,LB1]
      R 192.005.038.rrr   SRI-C3ETHER   SRI-AITAD C3ETHERNET    [96,BG5]
      R 192.005.039.rrr   UDEL-EECIS    Udel EECIS LAN          [93,CC2]
      R 192.005.040.rrr   PUCC-NET-A    PURDUE Comp Cntr Net       [JXS]
      D 192.005.041.rrr   WISLAN        WIS Research LAN       [86,JRM1]
      D 192.005.042.rrr   AFDSC-HYPER   AFDSC Hypernet            [MCSJ]
      R 192.005.043.rrr   CUCSNET       Columbia CS Net         [96,LH2]
      R 192.005.044.rrr   Farber-PC-Net Farber PC Network          [DJF]
      R 192.005.045.rrr   AIDS-NET      AI&DS Network            [96,HA]
      R 192.005.046.rrr   NTA-RING      NDRE-RING                  [PS3]
      R 192.005.047.rrr   NSRDC         NSRDC                      [PXM]
      R 192.005.048.rrr   PURDUE-CS-IL  Purdue CS IL Ethernet   [96,CAK]
      R 192.005.049.rrr   UCSF          Univ of Calif, San Fran [93,TXF]
      R 192.005.050.rrr   CTH-CS-NET    Chalmers CSN Local Net  [93,UXB]
      R 192.005.051.rrr   Theorynet     Cornell Theory Center  [96,AB13]
      R 192.005.052.rrr   NLM-ETHER     NLM-LHNCBC-ETHERNET     [71,JA1]
      R 192.005.053.rrr   UR-CS-ETHER   U of R CS 10Mb Net      [51,LB1]
      R 192.005.054.rrr   AERO-A6       Aerospace                [2,LCN]
      R 192.005.055.rrr   UCLA-CECS     UCLA-CECS Network       [96,RBW]
      C 192.005.056.rrr   TARTAN-NET    Tartan Labs                [SXB]
      R 192.005.057.rrr   UDEL-CC       UDEL Comp Center        [93,RXR]
      R 192.005.058.rrr   CSNET-PDN     CSNET X.25 Network     [47,RDR4]
      R*192.005.059.rrr   Inria SM90    Inria GIP SM-90            [MXS]
      R*192.005.060.rrr   SM90 X1       Inria SM-90 exp. 1         [MXS]
      R*192.005.061.rrr   SM90 X2       Inria SM-90 exp. 2         [MXS]
      R*192.005.062.rrr   LITP SM90     LITP SM-90                 [MXS]
      R 192.005.064.rrr   AMES-NAS-NET  NASA ARC NAS LAN       [92, MXF]
      R 192.005.065.rrr   NPRDC-Ether   NPRDC TRCF Ethernet        [LRB]
      R 192.005.066.rrr   HARV-NET      Harvard Comp Sci Net      [SXB1]
      R 192.005.067.rrr   CECOM-ETHER   CECOM ADDCOMPE ETHER    [93,GXH]
      R 192.005.068.rrr   AERO-130      AEROSPACE-130              [LCN]
      R 192.005.069.rrr   UIUC-NET      Univ of IL at Urbana    [96,AXC]
      G 192.005.070.rrr   CELAN         COINS Exper. LAN           [MXM]
      R 192.005.071.rrr   SAC-ETHER     SAC C3 Ethernet         [96,BG5]
      R*192.005.072.rrr-192.005.087.rrr U Chicago                  [TXN]
      R 192.005.088.rrr   YALE-EE-NET   YALE-EE-NET            [96,AXG1]
      R 192.005.089.rrr   UTEXAS        U. Texas Austin Net    [96,JSQ1]
        192.005.090.rrr-192.005.255.rrr Unassigned                 [JBP]


Reynolds & Postel                                               [Page 7]