Hi infosys, Not sure what you mean by what IP addresses to use for the NAT. Can you expand a little bit? Thanks! Tom Thomas W Shinder www.isaserver.org/shinder ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp -----Original Message----- From: infosys1@xxxxxxxxxxxxxxxxxxxxxxxxx [mailto:infosys1@xxxxxxxxxxxxxxxxxxxxxxxxx] Sent: Wednesday, April 02, 2003 5:01 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: PLS HELP ME... on NAT setup and configuration http://www.ISAserver.org Tom, thanks for the reply. Regarding NAT, what do you mean by protocol and IP address based access controls? Sir, aside from setting the internal IP address of ISA as the default gateway, what protocols should I set? And how can I define the IP addresses that I will be using for NAT? Thank you and hoping for a response. Free Trial Software: Monitor & Manage Web Use with SurfControl Web Filter for MS ISA Server http://www.surfcontrol.com/go/zisadl1