Using multiple modems

Posted on 2007-10-21
Last Modified: 2013-12-27
Hello Experts,
I have 8 modem installed on my pc, I want to connect all of the modem I have 8 different isp connection and telephone line as well now situation is this..

I am able to connect all the modems with different isp, now i want to use those modems for different actions like
Select modem 1 .. surf site programatically ( using c#)
Select modem 2 .. suft the site ..
repeat the same steps for all modem..

in conclusion i want to used all modems to surt internet prgramatically.. Please let me know how can i do that. I have connection script ready (RAS C# code)
Question by:technodeveloper
    LVL 3

    Expert Comment

    by:Adrien de Croy
    Your main problem will be system routing.

    even though you can bind your socket to the relevant public IP for whichever modem you wish to use, when you try to connect on that socket, the OS will route the outbound SYN packet (setting up the connection) out the interface with the lowest metric.  This in general will be the last modem connected.

    You could try something like WinGate, which can override system routing and force traffic out specific modems.  e.g. set up 8 WWW proxies in WinGate (on different port numbers), set each to connect out through a specific modem, then from your client code, direct your connections to the proxy relating to the modem you want to use.
    LVL 36

    Accepted Solution

    it is similar as another question i answered four years ago

    How to Bind two modems together to get more speed

    although you have eight modems, the method is exactly same.

    hope it helps,

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