HP OpenVMS Systems

Multiple TCP/IP gateways?

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The Question is:

 
I have my alpha set up with an internal (Class C) ip address,
100.100.100.10.  It has a gateway set up to connect my remote office -
gateway: 100.100.100.254.  I also have a web server connected with 2 ip
addresses to provide internet access to my network
.  This machine also provides NAT.  I created a mapped port to open an ftp
session to my alpha over the internet, and can connect, but when i do i
cannot list dir.  I get an error - cant build data connection for
xxx.xxx.xxx.xxx.  Is there a way to set up
 multiple gateways in UCX?
 
 

The Answer is :

 
  FTP defaults to having the server connect back to the client for
  data connections.  This type of problem is typical of the server
  not being able to route to the address specified in the PORT
  command generated by FTP.
 
  The usual workaround is to tell the FTP client to utilize passive
  (PASV) mode transfers, in which the client is the one who creates
  the data connection to the server.  Unfortunately, the TCP/IP
  Services FTP client does not support passive mode.  The inclusion
  of support for passive mode is under consideration for the TCP/IP
  Services V5.1 (or later) release.
 
  Enabling the FTP debug mode (DEBUG ON) or studying the IP/port
  noted in the server's "150 Opening data connection..." message
  (if the server gets that far) can offer some clues to how things
  need to be configured to allow remote connections back to the FTP
  client in an active scenario.
 

  

     

     
answer written or last revised on ( 2-NOV-1999 )
     
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