Hello All, I have just installed ISA and I am looking for advanced NAT what I mean is not only simple NAT (Network Address Translation) but also more complicated settings. You may specify, based on source or destination IP address of the packet, that NAT would be provided with some other IP address (I.e. packets would look like they would originate from other IP address) or that NAT won't be performed at all. can it be done. Kind Regards, Tal Bar-or Paris CGTI IT Professional. < http://www.citibank.com>