On Unix machines, ifconfig is the command used to get information about, and set network interfaces.

I have created the start of an ifconfig for Tcl, available from here:

http://www.dedasys.com/freesoftware/

(Look for the Tcl section).

-- [davidw] 2004-12-20
----
On Windows, you can get similar information from the ''ipconfig'' command.
----
I would be more than willing to include windows code so that it works on windows too.  Don't have a windows system myself.