Check out my first post in this thread.
Since the diagram explains best, I think. The VPN had 2 NIC's: one on the internal network (192.168.0.0) and one on the network which existed between the two DSL routers (172.16.0.0, IIRC). In addition, since it was running an ethernet bridge, it had a virtual NIC (a tap device), which was bridged to the internal NIC. The bridged ethernet was set up per [link|http://openvpn.sourceforge.net/bridge.html|http://openvpn.sourc...e.net/bridge.html]
I was one of the original authors of VB, and *I* wouldn't use VB for a text
processing program. :-)
Michael Geary, on comp.lang.python