************************************************************************ 
DDN MGT Bulletin 93              DISA DDN Defense Communications System   
9 MARCH 1992                      Published by: DDN Network Info Center
                                      (NIC@NIC.DDN.MIL)  (800) 365-3642


                        DEFENSE  DATA  NETWORK
                         MANAGEMENT  BULLETIN

  The DDN MANAGEMENT BULLETIN is distributed online by the DDN Network
  Information Center under DISA contract as a means of communicating
  official policy, procedures and other information of concern to
  management personnel at DDN facilities.  Back issues may be read
  through the TACNEWS server ("@n" command at the TAC) or may be
  obtained by FTP (or Kermit) from the NIC.DDN.MIL host [192.112.36.5]
  using login="anonymous" and password="guest".  The pathname
  for bulletins is ddn-news/ddn-mgt-bulletin-nn.txt (where "nn" is the
  bulletin number).
************************************************************************
 
  SUBJECT:	Elimination of Selected Networks from MILNET Core Gateways
  
  Preparer:	Ted A. Tatchio, Maj, USAF, 2-7580	
  
  1.  Due to the rapid addition of MILNET and NSFNET networks, MILNET is again
      approaching the limit of the number of networks the Butterfly mailbridges
      can advertise (3750).  To manage this situation, DISA will restrict the
      advertising of selected foreign commercial and foreign educational
      networks.  This includes the following networks:
      
      128.134
      128.184
      128.250
      129.78, 129.94, 129.96, 129.127, 129.180, 129.249, 129.254, 130.34,
      130.54, 130.56, 130.69, 130.87, 130.95, 130.102, 130.116, 130.123,
      130.130, 130.153, 130.155, 130.158, 130.194, 130.195, 130.216, 130.217,
      130.220,
      
      131.112, 131.113, 131.161, 131.170, 131.172, 131.181, 131.203, 131.206,
      131.217, 131.236, 131.242, 131.244, 131.245, 
      
      132.181, 132,182, 132.186, 132.234, 
      
      133.1 thru 133.7, 133.9, 133.11, 133.12, 133.14, 133.15, 133.17-133.20,
      133.24, 133.27, 133.30, 133.39, 133.40, 133.41, 133.45, 133.47-133.51,
      133.56, 133.58, 133.61, 133.74, 133.75, 133.125, 133.137-133.139,
      133.141, 133.143, 133.147, 133.152, 133.155, 133.156, 133.166, 133.181,
      133.194, 133.196, 133.210, 133.229, 133.233, 133.235
      
      134.7, 134.18, 134.75, 134.115, 134.148, 134.159, 134.160, 134.178, 
      
      136.153, 136.154, 136.169, 136.186, 136.187,
      
      137.68, 137.76, 137.92, 137.109, 137.111, 137.147, 137.154, 137.157,
      137.166, 137.219,
      
      138.7, 138.19, 138.24, 138.25, 138.44, 138.71, 138.75, 138.77, 138.80,
      138.194, 138.211,
      
      139.59, 139.80, 139. 86, 139.130, 139.132, 139.230,
      
      140.79, 140.143, 140.159, 140.200, 140.253, 
      
      141.120, 141.132, 141.223, 
      
      143.92, 143.96, 143.174, 143.188, 143.189, 143.216, 143.238, 143.248,
      
      144.6, 144.53, 144.66, 144.97, 144.110, 144.205, 144.218,
      
      146.116, 146.118, 146.144, 146.178, 146.196, 
      
      147.6
      
      149.171, 
      
      150.101, 150.151, 150.203, 
      
      192.5.90,
      192.6.149,
      192.12.76,
      192.16.180,
      192.26.91, 192.26.232,
      192.31.118, 192.31.197, 
      192.35.59, 192.35.248,

      192.41.146, 192.41.192, 192.41.197, 192.41.203,
      192.42.60, 192.42.161, 192.42.62, 192.42.151, 
      192.43.185, 192.43.186, 192.43.198, 192.43.207 thru 192.43.209,
      192.43.226 thru 192.43.229, 192.43.239,
      192.48.109, 192.48.110,

      192.50.12, 192.50.17, 192.50.63, 192.50.188,
      192.51.37, 192.51.48, 192.51.51, 
      192.52.185,
      192.54.105, 192.54.106, 192.54.109, 192.54.130, 
      192.55.98, 192.55.99, 192.55.112, 192.55.190, 192.55.219, 

      192.67.12, 192.67.217,
      192.68.132, 

      192.70.135, 192.70.174, 192.70.216, 
      192.73.12, 
      192.76.122,
      192.77.17,

      192.82.140, 192.82.161, 
      192.83.231, 192.83.238, 
      192.84.237, 192.84.238, 192.84.253, 
      192.86.12
      
      These networks WILL NOT be accessible from MILNET.  If you need 
      access to any of these networks, please contact the MILNET MC trouble
      desk.  They will open a problem report and coordinate this request with
      the MILNET Manager.  In such cases, DISA will need a brief explanation
      of the requirement to approve the inclusion of individual networks.
      
  3.  Implementation of this action will begin on 11/Mar/92 and be completed
      no later than 13/Mar/92.
      
  4.  Additional networks may be eliminated as the need arises.
      
  5.  DISA POC is Maj Ted A. Tatchio, DNS 22-7580, com'l (703)692-7580.  
      e-mail: milnetmgr@ddn-conus.ddn.mil.
      
      
      TED A. TATCHIO, MAJ, USAF
      MILNET Mgr, HQ DISA, Code: DODM