I have already asked this once but it still isn't clear for me, sorry! Are there any benifits of using a public IP addresses on the DMZ? Or is it a rule? Would it be wrong using the following way? Internal LAN ---- ISA FIREWALL/PROXY ---- INTERNET 192.168.1.0/24 | Public IPs | DMZ 192.168.0.0/24 Thanks once again, Aleksander França Honma