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How to specify which NIC to use?

Posted by neilvp (neilvp), 25 February 2005
I am attempting to write a test suite in TCL that is to talk via an Ethernet connection to the Device Under Test (DUT). (My 'first program' ambitious or what?)

Our IT people are understandably reluctant to let me talk via the corporate network linked to my desktop. (What could possibly, possibly go wrong) So, they have suggested that they install a second NIC card in my PC (running Windows 2k Pro) and I work over the lab network to the DUT. My question is... can I specify which NIC card my program talks through from within TCL and, if so, how?



Posted by admin (Graham Ellis), 25 February 2005
Being more of a Linux person than a Windows one ...

Unless you're programming at a low level / hardware level, I would suggest you install the second NIC and configure it with its oen networrk number ... for example if your main network was 192.168.200.xxx, configure the second NIC to 192.168.123.xxx. Then if your Tcl program talks to a "192.168.123.xxx" system, it should use the second NIC and network.  

I know that's how it would work on the systems I'm slightly more familiar with at an OS configuration level ....

Posted by neilvp (neilvp), 17 March 2005
I have now found the 'proper' way to do this is to modify /set the route table up within the PC.
Using a command prompt type <route ?> and all the necessary information appears to enable one to set this up using <route add >

Posted by admin (Graham Ellis), 17 March 2005
Glad you sorted that.  And thanks for coming back to complete the thread.

- Graham



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