rfc1117.txt

来自「RFC 的详细文档！」· 文本 代码 · 共 1,173 行 · 第 1/5 页

        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 1 0|                  multicast address                    |
       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

                               Class D Address


      Note:  No addresses are allowed with the four highest-order bits
      set to 1-1-1-1.  These addresses, called "class E", are reserved.

   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 VENERA.ISI.EDU in dotted decimal is 010.001.000.052, or
   10.1.0.52.

   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
   research Internet and operational Internet, and for independent
   networks that use the IP family protocols (these are usually
   commercial).  These independent networks are marked with an asterisk
   preceding the number.

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




Romano, Stahl & Recker                                          [Page 5]

RFC 1117                    Internet Numbers                 August 1989


   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 preceding the name, and the
   network name will be suffixed "-TEMP".


   Special Addresses:

      In certain contexts, it is useful to have fixed addresses with
      functional significance rather than as identifiers of specific
      hosts.

         The address zero is to be interpreted as meaning "this", as in
         "this network".

            For example, the address 0.0.0.37 could be interpreted as
            meaning host 37 on this network.

         The address of all ones are to be interpreted as meaning "all",
         as in "all hosts".

            For example, the address 128.9.255.255 could be interpreted
            as meaning all hosts on the network 128.9.

         The class A network number 127 is assigned the "loopback"
         function, that is, a datagram sent by a higher level protocol
         to a network 127 address should loop back inside the host.  No
         datagram "sent" to a network 127 address should ever appear on
         any network anywhere.





















Romano, Stahl & Recker                                          [Page 6]

RFC 1117                    Internet Numbers                 August 1989


Class A Networks

* Internet Address   Network          Name               References
- ----------------   -------          ----               ----------
 *0.rrr.rrr.rrr      Reserved        Reserved              [JBP]
  1.rrr.rrr.rrr-2.rrr.rrr.rrr        Unassigned            [NIC]
C*3.rrr.rrr.rrr      GE-INTERNET     GE TCP/IP Net         [JEB50]
R 4.rrr.rrr.rrr      SATNET          Atlantic Sat Net      [SHB]
  5.rrr.rrr.rrr      Unassigned      Unassigned            [NIC]
D 6.rrr.rrr.rrr      YPG-NET         Yuma Proving Grounds  [4,BWA]
D 7.rrr.rrr.rrr  T   EDN-TEMP        DCEC EDN              [EC5]
R 8.rrr.rrr.rrr      BBNCCNET        BBN Net               [JSG5]
R 9.rrr.rrr.rrr      IBM             IBM Rsch Net          [MT1]
R 10.rrr.rrr.rrr     ARPANET         ARPANET               [4,JS283]
D 11.rrr.rrr.rrr     DODIIS          DoD Intel Info Sys    [AY5]
C 12.rrr.rrr.rrr     ATT             ATT Bell Labs         [MH82]
C 13.rrr.rrr.rrr     XEROX-NET       XEROX Internet        [47,JNL1]
C 14.rrr.rrr.rrr     PDN             Public Data Net       [JS283]
R 15.rrr.rrr.rrr     HP-INTERNET     HP-INTERNET           [18,WU1]
  16.rrr.rrr.rrr-17.rrr.rrr.rrr      Unassigned            [NIC]
R 18.rrr.rrr.rrr T   MIT-TEMP        MIT Net               [9,39,DDC1]
  19.rrr.rrr.rrr-20.rrr.rrr.rrr      Unassigned            [NIC]
D 21.rrr.rrr.rrr     DDN-RVN         DDN-RVN               [MLC]
D 22.rrr.rrr.rrr     DISNET          DISNET                [JM28]
D 23.rrr.rrr.rrr     DDN-TC-NET      DDN-TestCell-Net      [DH17]
  24.rrr.rrr.rrr     Unassigned      Unassigned            [NIC]
R 25.rrr.rrr.rrr     RSRE-EXP        RSRE-EXP              [CDB4]
D 26.rrr.rrr.rrr     MILNET          MILNET                [TMH6]
R 27.rrr.rrr.rrr T   NOSC-LCCN-TEMP  NOSC/LCCN             [RH6]
R 28.rrr.rrr.rrr     WIDEBAND        Wide Band Sat Net     [CJW2]
D 29.rrr.rrr.rrr T   MILX25-TEMP     MILNET X.25 Temp      [MLC]
D 30.rrr.rrr.rrr T   ARPAX25-TEMP    ARPA X.25 Temp        [MLC]
G 31.rrr.rrr.rrr     UCDLA-NET       UCLA-CATALOG-NET      [CL64]
  32.rrr.rrr.rrr-34.rrr.rrr.rrr      Unassigned            [NIC]
R 35.rrr.rrr.rrr     MERIT           MERIT Comp Net        [HWB]
R 36.rrr.rrr.rrr T   SU-NET-TEMP     Stanford Univ Net     [VAF]
  37.rrr.rrr.rrr-38.rrr.rrr.rrr      Unassigned            [NIC]
R 39.rrr.rrr.rrr T   SRINET-TEMP     SRI Local Net         [JMR]
  40.rrr.rrr.rrr     Unassigned      Unassigned            [NIC]
R 41.rrr.rrr.rrr     BBN-TEST-A      BBN-GATE-TEST-A       [RH6]
R 42.rrr.rrr.rrr     CAN-INET        Canadian Rsch Net     [47,PAP4]
R*43.rrr.rrr.rrr     JAPAN-A         Japan Inet            [JM292]
R 44.rrr.rrr.rrr     AMPRNET         Amateur Rad Exp Net   [PK28]
C 45.rrr.rrr.rrr T   SHOWNETA        Trade Show Net        [NIC]
C 46.rrr.rrr.rrr     BBNET           BBN Corp Net          [4,JSG1]
R*47.rrr.rrr.rrr     BNR             BNR Corp Net          [BM178]
  48.rrr.rrr.rrr-126.rrr.rrr.rrr     Unassigned            [NIC]
 *127.rrr.rrr.rrr    Loopback        Loopback              [JBP]



Romano, Stahl & Recker                                          [Page 7]

RFC 1117                    Internet Numbers                 August 1989


Class B Networks

* Internet Address   Network          Name               References
- ----------------   -------          ----               ----------
 *128.0.rrr.rrr      Reserved        Reserved                 [JBP]
R 128.1.rrr.rrr      BBN-TEST-B      BBN-GATE-TEST-B          [RH6]
R 128.2.rrr.rrr      CMU-NET         CMU-Ether                [HDW2]
R 128.3.rrr.rrr      LBL-IP-NET1     LBL-CSR-NET              [WJ2]
R 128.4.rrr.rrr      DCNET           LINKABIT DCNET           [32,DLM1]
R 128.5.rrr.rrr      FORDNET         FORD DCNET               [32,FJB3]
R 128.6.rrr.rrr      RUTGERS         RUTGERS                  [CLH3]
R 128.7.rrr.rrr      KRAUTNET        KRAUTNET                 [GB7]
R 128.8.rrr.rrr      UMDNET          Univ of Maryl DCNET      [32,DLM1]
R 128.9.rrr.rrr      ISI-NET         USC-ISI Local Net        [VLG]
R 128.10.rrr.rrr     PURDUE-CS-EN    Purdue CS Ether          [47,DT50]
R 128.11.rrr.rrr     BBN-CRONUS      BBN DOS Proj             [31,PK19]
R 128.12.rrr.rrr     SU-NET          Stanford Univ Net        [VAF]
D 128.13.rrr.rrr     MATNET          Mob Access Term Net      [SHB]
R 128.14.rrr.rrr     BBN-SAT-TEST    BBN SATNET Test Net      [SHB]
R 128.15.rrr.rrr     S1NET           LLL-S1-NET               [RAK12]
R 128.16.rrr.rrr     UCLNET          Univ College London      [PK]
D 128.17.rrr.rrr     MATNET-ALT      Mob Access Term Alt      [SHB]
R 128.18.rrr.rrr     SRINET          SRI Local Net            [TONY]
D 128.19.rrr.rrr     EDN             DCEC EDN                 [EC5]
D 128.20.rrr.rrr     BRLNET          BRLNET                   [4,MJM2]
R 128.21.rrr.rrr     SRI-PR-1        SRI Pck Rad-1 Net        [PEM4]
R 128.22.rrr.rrr     SRI-PR-2        SRI Pck Rad-2 Net        [PEM4]
  128.23.rrr.rrr     Unassigned      Unassigned               [NIC]
R 128.24.rrr.rrr     ROCKWELL-PR     Rockwell Pck Rad Net     [NG]
D 128.25.rrr.rrr     BRAGG-PR        Ft. Bragg Pck Rad Net    [LDB3]
D 128.26.rrr.rrr     SAPE-AIRNET     RADC-SAPE-PR-NET         [CAD13]
D 128.27.rrr.rrr     DEMO-PR-1       Demo-1 Pck Rad Net       [LCS]
D 128.28.rrr.rrr     C3-PR-TEMP      Testbed Dev PR NET       [GMR]
R 128.29.rrr.rrr     MITRE           MITRE Cablenet           [45,TML]
R 128.30.rrr.rrr     MIT-NET         MIT Local Net            [DDC1]
R 128.31.rrr.rrr     MIT-RES         MIT Rsch Net             [DDC1]
R 128.32.rrr.rrr     UCB-ETHER       UC Berkeley Ether        [RWH5]
R 128.33.rrr.rrr     BBN-NET         BBN Net                  [JSG5]
R 128.34.rrr.rrr     NOSC-LCCN       NOSC/LCCN                [RH6]
R 128.35.rrr.rrr     CISLTESTNET1    Honeywell            [22,23,JLM23]
R 128.36.rrr.rrr     YALE-NET        YALE Net                 [47,HML1]
D 128.37.rrr.rrr     YUMA            Army Yuma Proving Grd    [4,RBB2]
D 128.38.rrr.rrr     NSWC-NET        NSWC Local Host Net      [VHB]
R 128.39.rrr.rrr     NTANET          NDRE-TIU                 [PS27]
R 128.40.rrr.rrr     UCL-NET-A       Univ College London      [JA168]
R 128.41.rrr.rrr     UCL-NET-B       Univ College London      [JA168]
R 128.42.rrr.rrr     RICE-NET        Rice Univ                [47,FG50]
R 128.43.rrr.rrr     DRENET          Canada REF ARPANET       [4,JR17]



Romano, Stahl & Recker                                          [Page 8]

RFC 1117                    Internet Numbers                 August 1989


D 128.44.rrr.rrr     WSMR-NET1       White Sands Net          [CAS1]
C 128.45.rrr.rrr     DEC-WRL-NET     DEC WRL Net              [47,BKR]
R 128.46.rrr.rrr     PURDUE-NET      Purdue Camp Net          [JRS8]
D 128.47.rrr.rrr     TACTNET         Tactical Pck Net         [3,MB31]
G 128.48.rrr.rrr     UCDLA-NET-B     UCDLA-Net-B              [4,CL64]
R 128.49.rrr.rrr     NOSC-ETHER      NOSC Ether               [47,RLB3]
G 128.50.rrr.rrr     COINS           COINS Online Intnet      [RLS6]
G 128.51.rrr.rrr     COINSTNET       COINS Online Intnet      [RLS6]
R 128.52.rrr.rrr     MIT-AI-NET      MIT AI NET               [47,MDC]
R 128.53.rrr.rrr     SAC-PR-2        SAC PRNET Number 2       [GMR]
R 128.54.rrr.rrr     UCSD            UC San Diego Net         [47,GH29]
R 128.55.rrr.rrr     MFENET          LLNL MFE Net             [47,BCH2]
D 128.56.rrr.rrr     USNA-NET        US Naval Acad Net        [RAD15]
D 128.57.rrr.rrr     DEMO-PR-2       Demo-2 Pck Rad Net       [LCS]
C 128.58.rrr.rrr     SLCS            Schlumberger LCS Net     [47,CG64]
R 128.59.rrr.rrr     CU-NET          Columbia Univ            [47,BC14]