rfc1207.txt

RFC 的详细文档！


RFC 1207        FYI Q/A - for Experienced Internet Users   February 1991


         Save the older kernel and try,

            % adb -k -w /vmunix /dev/kmem udpcksum?w 1

         to patch up the kernel.

9. Questions About Routing

   9.1. Some postings mentioned "maximum entropy routing".  Could
        someone please provide a pointer to on-line or off-line
        references to this topic?

      Try NYU CSD Technical Report 371: "Some Comments on Highly Dynamic
      Network Routing," by Herbert J. Bernstein, May 1988.

10. Other Protocol and Standards Implementation Questions

   10.1. Does anyone recognize ethernet type "80F3"?  I don't see it
         in RFC 1010, but I am seeing it on our net.

      Ethernet type 0x80F3 is used by AppleTalk for address resolution.
      You must have Macs on your network which are directly connected to
      Ethernet.  These packets are used by the Mac (generally at
      startup) to determine a valid AppleTalk node number.

      Additional Information:

      RFC 1010 is obsolete.  Please consult RFC 1060 [11], the current
      "Assigned Numbers" (issued March 1990), which does list "80F3":

      Ethernet          Exp. Ethernet    Description          References
      -------------     -------------   -----------           ----------
      decimal  Hex      decimal  octal
      33011   80F3        -      -     AppleTalk AARP (Kinetics)[XEROX]

   10.2. Does anyone know the significance of a high value for
         "Bad proto" in the output from netstat on Unix machines using
         ethernet?  We're seeing values in the tens of thousands out of
         a few hundred thousand packets sent/received in all.  Some
         "Bad proto" values are negative, too.  (Off the scale?)  Any
         help would be appreciated.

      This probably indicates that you are getting tens of thousands of
      broadcast packets from some host or hosts on your network.  You
      might want to buy or rent a LAN monitor, or install one of the
      public-domain packages to see what private protocol is guilty.
      "FYI on a Network Management Tool Catalog: Tools for Monitoring
      and Debugging TCP/IP Internets and Interconnected Devices" (RFC



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      1147, FYI 2), [12] contains pointers to tools that may help you
      zero in on the problem.

   10.3. Which RFC would explain the proper way to configure broadcast
         addresses when using subnets?

      Consult RFC 1122, "Requirements for Internet Hosts --
      Communication Layer" [13].

   10.4. Can anyone tell me what .TAR files exactly are?  Is it like
         ZIP or LZH for the IBM PC's?  IF so, how do I go about getting
         a compressor/decompressor for .TAR files and what computer
         does this run on?

      TAR stands for "Tape ARchive".  It is a Unix utility which takes
      files, and directories of files, and creates a single large file.
      Originally intended to back up directory trees onto tape (hence
      the name), TAR is also used to combine files for easier electronic
      file transfer.

11. Suggested Reading

   For further information about the Internet and its protocols in
   general, you may choose to obtain copies of the following works:

      Bowers, K., T. LaQuey, J. Reynolds, K. Roubicek, M. Stahl, and A.
      Yuan, "Where to Start - A Bibliography of General Internetworking
      Information", RFC 1175, FYI 3, CNRI, U Texas, ISI, BBN, SRI,
      Mitre, August 1990.

      Braden, R., Editor, "Requirements for Internet Hosts --
      Communication Layer", RFC 1122, Internet Engineering Task Force,
      October 1989.

      Braden, R., Editor, "Requirements for Internet Hosts --
      Application and Support", RFC 1123, Internet Engineering Task
      Force, October 1989.

      Comer, D., "Internetworking with TCP/IP: Principles, Protocols,
      and Architecture", Prentice Hall, New Jersey, 1989.

      Frey, D. and R. Adams, "!%@:: A Directory of Electronic Mail
      Addressing and Networks", O'Reilly and Associates, Newton, MA,
      August 1989.

      Krol, E., "The Hitchhikers Guide to the Internet", RFC 1118,
      University of Illinois Urbana, September 1989.




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      LaQuey, T, Editor, "Users' Directory of Computer Networks",
      Digital Press, Bedford, MA, 1990.

      Malkin, G., and A. Marine, "FYI on Questions and Answers - Answers
      to Commonly asked "New Internet User" Questions", RFC 1206, FYI 4,
      FTP Software, Inc., SRI, February 1991.

      Postel, J., Editor, "IAB Official Protocol Standards", RFC 1140,
      Internet Activities Board, May 1990.

      Quarterman, J., "Matrix: Computer Networks and Conferencing
      Systems Worldwide", Digital Press, Bedford, MA, 1989.

      Reynolds, J., and J. Postel, "Assigned Numbers", RFC 1060,
      USC/Information Sciences Institute, March 1990.

      Socolofsky, T., and C. Kale, "A TCP/IP Tutorial", RFC 1180, Spider
      Systems Limited, January 1991.

      Stevens, W., "UNIX Network Programming", ISBN 0-13-949876-1,
      Prentice Hall, Englewood Cliffs, NJ, 1990.

      Stine, R., Editor, "FYI on a Network Management Tool Catalog:
      Tools for Monitoring and Debugging TCP/IP Internets and
      Interconnected Devices" RFC 1147, FYI 2, Sparta, Inc., April 1990.

12.  References

   [1] Cerf, V., and K. Mills, "Explaining the Role of GOSIP", RFC 1169,
       IAB, NIST, August 1990.

   [2] Mockapetris, P., "Domain Names - Concepts and Facilities", RFC
       1034, USC/Information Sciences Institute, November 1987.

   [3] Rose, M., and K. McCloghrie, "Structure and Identification of
       Management Information for TCP/IP-based Internets", RFC 1155,
       Performance Systems International, Hughes LAN Systems, May 1990.

   [4] McCloghrie, K., and M. Rose, "Management Information Base for
       Network Management of TCP/IP-based internets", RFC 1156, Hughes
       LAN Systems, Performance Systems International, May 1990.

   [5] Case, J., M. Fedor, M. Schoffstall, and J. Davin, "A Simple
       Network Management Protocol (SNMP)", RFC 1157, SNMP Research,
       Performance Systems International, Performance Systems
       International, MIT Laboratory for Computer Science, May 1990.

   [6] Rose, M., Editor, "Management Information Base for Network



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       Management of TCP/IP-based internets: MIB-II", RFC 1158,
       Performance Systems International, May 1990.

   [7] Postel, J., and J. Reynolds, "TELNET Protocol Specification", RFC
       854, USC/Information Sciences Institute, May 1983.

   [8] Romkey, J., "A Nonstandard for Transmission of IP Datagrams over
       Serial Lines: SLIP", RFC 1055, June 1988.

   [9] Perkins, D., "The Point-to-Point Protocol: A Proposal for Multi-
       Protocol Transmission of Datagrams Over Point-to-Point Links",
       RFC 1171, CMU, July 1990.

  [10] Perkins, D., and R. Hobby, "The Point-to-Point Protocol (PPP)
       Initial Configuration Options", CMU, UC Davis, July 1990.

  [11] Reynolds, J., and J. Postel, "Assigned Numbers", RFC 1060,
       USC/Information Sciences Institute, March 1990.

  [12] Stine, R., Editor, "FYI on a Network Management Tool Catalog:
       Tools for Monitoring and Debugging TCP/IP Internets and
       Interconnected Devices" RFC 1147, FYI 2, Sparta, Inc., April
       1990.

  [13] Braden, R., Editor, "Requirements for Internet Hosts --
       Communication Layer", RFC 1122, Internet Engineering Task Force,
       October 1989.

13. Security Considerations

   Security issues are not discussed in this memo.




















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RFC 1207        FYI Q/A - for Experienced Internet Users   February 1991


14. Authors' Addresses

   Gary Scott Malkin
   FTP Software, Inc.
   26 Princess Street
   Wakefield, MA 01880

   Phone:  [phone]
   EMail:  [e-mail]


   April N. Marine
   SRI International
   Network Information Systems Center
   333 Ravenswood Avenue, EJ294
   Menlo Park, CA 94025

   Phone:  [phone]
   EMail:  [e-mail]


   Joyce K. Reynolds
   USC/Information Sciences Institute
   4676 Admiralty Way
   Marina del Rey, CA  90292-6695

   Phone:  [phone]
   EMail:  [e-mail]























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