Hi, Is there a windows XP command that returns which source device will be used to send to a particular destination based on the route table? I'm sending packets over a raw socket and capturing the packets using pcap for timing information. Binding to a device does not necessarily mean the packet goes out over that device (http://support.microsoft.com/kb/175396). It's hard to capture traffic when you don't know which device to attach to! Thanks, Mona