>Another way that DHCP can be used is when the router is smart enough >to match IP addresses with Ethernet (MAC) addresses. That way a >static address can be assigned to each machine centrally, at the >router, rather than configuring machines individually. All machines >use DHCP, but get their pre-assigned static IP address via DHCP >every time they boot. That's what my home network does. I imagine that's sufficient to prevent war driving: my setup will only give an IP address to MAC addresses it knows. The interface then requires me to specify a static IP address, but that's no problem. (This is an SMC router, which I'm quite happy with.) -- Victor Eijkhout <eijkhout at cs.utk.edu> tel: 865 974 9308 (W), 865 673 6998 (H), 865 974 8296 (F) http://www.cs.utk.edu/~eijkhout/