Hello list I would like to create a DMZ net on my ISA, which is behind a router. The config would be something like this: Router outside: xxx.xxx.xxx.xxx routable IP address Router inside: 192.168.1.1/ 255.255.255.128 ISA external: 192.168.1.2 255.255.255.128 ISA DMZ: 192.168.1.129 255.255.255.128 ISA internal: 192.168.2.1 255.255.255.0 Would this be all right ? I realize, that in a standard setup, ISA would Have to use routable addresses on both external and DMZ networks. But in This setup, the DMZ addresses, would actually be routable to the gateway on 192.168.6.1 I need this setup, to test routing ESP protocol 50 traffic between outside And DMZ. Any comments on that will be appreciated. Regards, David Elmquist