I need to add more addresses to the DHCP pool. We have completely exhausted the 192.168.0.x range. I am trying to find the best most efficient way to expand the pool. We are using Windows 2000 server providing DHCP and DNS. All current addresses are in the 192.168.0.x 255.255.255.0 segment. I would like to expand the address pool to at least double or even quadrupal the number IE 192.168.0.x, 192.168.1.x, 192.168.2.x, 192.168.3.x but I dont know how to limit the subnet mask to just allow these numbers. For some reason I just dont get the mask portion...can some one tell me the correct mask to allow just these four segments? Is there a better way? I dont have extra routers and I would just like to use what I have to expand the amount of IP addresses. Please help.