Hello, I have two network adapters in my computer (USB for satellite internet connection and a 10/100 PCI NIC for LAN). I would like to ping IPs on the network but all pings are going to the USB connection and out across the internet. How do I choose which card to ping? Many, many thanks for any help. Sincerely, Tom Jacobson

Firstly, don't have a default gateway on your internal LAN NIC that points to the Internet NIC. There is no way of choosing which NIC you use, it's handled by the routing table that gets built(route print in a cmd window). These are the lines that tell packets where to go. Network Dest. Gateway Interface 0.0.0.0 1nn.xxx.xxx.1 1nn.xxx.xxx.234 192.168.45.0 192.168.45.100 192.168.45.100 Simply put, for any address other than something on the 192.168.45.0 network, use the 1nn.xxx.xxx.234 NIC. For all 192.168.45.x addresses, use the 192.168.45.100 NIC. So a ping to 192.168.45.101 will use the 192.168.45.100 interface (NIC). A ping to anything else will go through the 1nn.xxx.xxx.234 interface (NIC). As an aside, depending on the OS, you should see, in network properties, that the network protocol is bound to the interfaces (NIC). I'm pretty sure mine were, when I re-installed this OS this year. Putting in a PCI video card changed my interrupts and I had to re-install the NIC drivers. I have sinced pulled that Video card. Checking my network properties just now, it doesn't show my internal NIC bound to the TCP/IP protocol. No networking problems to/from my other machines. Go figure.

So how do I change the route table? I would like to set network destination 192.168.1.1 to use the internal NIC (192.168.0.1) as the gateway. Thanks again. - Tom