I would like to install an ISA 2004 firewall between our Cisco router and network, which has all public addresses...no NAT. I have had problems in identifying the procedures needed to configure the internal NIC with public addresses and the external NIC with its public facing address. It seems on the local host I can ping in either direction, but I can not get either side to see each other. All I want is a firewall that forwards while filtering packets from one side of the firewall to the other while preserving the address scheme currently in place. We have a packet shaper in place that is doing this, but I would prefer the firewall proper to do this. Any help would be appreciated?greatly!!!