On Wed, 24 Dec 2003, Jeff Wong wrote: > The only way to really force a change of IP is to change the MAC address > of the device requesting the IP.
You could try some DHCP client side options like -s to request a specific address or possibly modify your DHCP [client/interface].cache file where your current or last assigned IP is stored. Of course if your specific requested address is already taken (hint: ping them first), the server will again assign your old address again if it is available. The W2K/XP DHCP client does not appear to have an "-s" option and I could not find anything that specified what the .cache equivelent would be with Google. I found some likely references in the registy but who knows. Changing the MAC address will work better but not always an option.