Menu

Modem pool client/server

Help
2009-07-23
2013-05-20
  • Jeff Hedlund

    Jeff Hedlund - 2009-07-23

    I am testing the hub4com software by doing the following:

      hub4com on the server with a Conexant D850 56K V.9x DFVc modem
      I created a text file for hub4com using com2tcp-rfc2217.bat
      I start hub4com --load=my.txt,_BEGIN_,_END_ on the server

    On the client, I have:
      installed com0com (unchecking the creation of CNBA0<->CNCB0
      ran the setup command prompt and installed COM6:
           install 0 PortName=COM6,EmuBR=yes -
      then I run (from hub4com package):
           com2tcp-rfc2217 \\.\CNCB0 myserver 5555
      It spits out some communication messages on the client and server and it appears connected

    In order to use Dial Up Networking, it looked like I had to create a modem - so I just added a modem "Standard 56k Modem", and then it shows up in the Dial up networking wizard.   (am I doing this step wrong?  Without adding a modem to that COM port, it doesn't show up in DUN.  and if I use Advanced Connection, I see the COM port but I can't enter a number to dial).

    So, with the Standard Modem, when I dial out I can see (through our phone system) that the line is connected.  DUN then gets to "Verifying username/password" and it times out there (as soon as it gets to that message, I see that the line is dropped in our phone system - so it disconnects right there).

    I tried adding "--reconnect=d" in the my.txt file for hub4com on the server, but that made no difference. (I read about that in this post: https://sourceforge.net/forum/message.php?msg_id=3838734\)

    What other troubleshooting can I do? 

    Thanks!
    Jeff

     
    • Vyacheslav Frolov

      As I understood you trying the folloving:

      "Standard 56k Modem" -- COM6-com0com-CNCB0 -- hub4com --(TCP/IP)-- hub4com -- COM1 -- Conexant

      and it's not working ("Verifying username/password" times out).

      So try the folloving:

      "Standard 56k Modem" -- COM1 -- Conexant
      "Standard 56k Modem" -- COM6-com0com-CNCB0 -- hub4com --(loopback)-- hub4com -- COM1 -- Conexant

       
      • Jeff Hedlund

        Jeff Hedlund - 2009-07-27

        I believe you have my setup correct.  I am not following your suggestion however.

        > "Standard 56k Modem" -- Com1 -- Conexant

        Are you suggesting to add a Standard 56k Modem to the server for the same port as the Conexant?

        > "Standard 56k Modem" -- COM6-com0com-CNCB0 -- hub4com --(loopback)-- hub4com -- COM1 -- Conexant

        "(loopback)" seems to suggest I'm on the same computer as the modem.  But the client (COM6-com0com-CNCB0) is a different physical computer than the server. 

        Let me know if/where I'm misunderstanding.

        Thanks for your help!

        Jeff

         
    • Vyacheslav Frolov

      I'd like to say that you have multiple points where the bug can be
      and it's not a trivial taks to find it.

      The first test is for question "Is the driver "Standard 56k Modem" is OK for Conexant?".
      The second one is for question "May be w/o network it's OK?".

      Both tests should be done with client on the same computer as the modem.

       
      • Jeff Hedlund

        Jeff Hedlund - 2009-07-27

        I understand now, thanks!

        Is using a "Standard 56k Modem" driver on the client "normal"?  Or is it recommended to use the actual driver on the client?  I tested with the actual driver and it didn't even dial out like it did with the other. 

        I will run through your recommended tests, thanks.

        Jeff

         
    • Jeff Hedlund

      Jeff Hedlund - 2009-07-28

      Update:

      I ran the test, the "Standard 56k Modem" failed to run on the local box itself, so I stopped there.  The Conexant modem was a test before we received our 4-port modem card, so I just stopped testing that modem as soon as our 4-port modem card came in.

      The 4-port works great with the com0com/hub4com solution.  I ran through the tests locally before trying over the network and everything worked great - including the client/server over LAN.

      Thanks for the help.

      Jeff

      PS - I ended up using the actual modem driver for the 4 port card on the client machine, since it reports the true connection speed whereas the standard always reported a 115.0 kbps speed, and I didn't have any troubles installing the drivers on the client pc with this other modem like I did with the Conexant.

       

Log in to post a comment.