Hi Bill, You can do this with ISA Server 2004, but not with ISA Server 2000. HTH, Tom Thomas W Shinder www.isaserver.org/shinder ISA 2004 Beta - Get it now! http://www.microsoft.com/isaserver/beta/default.asp ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp -----Original Message----- From: William Holmes [mailto:wtholmes@xxxxxxxxxxxxxx] Sent: Monday, April 12, 2004 12:53 PM To: [ISAserver.org Discussion List] Subject: [isalist] ISA and NAT http://www.ISAserver.org Hello, "Normally" when you use ISA you have a private address space connected to the internal network adapter. When a client wishes to make a connection to a internet host this address is translated to the external interfaces IP (A long way of saying NAT). Is it possible to operate ISA with a "Public" or routable address space connected to the internal interace and to no have NAT performed? I am still wat to use ISA as the default gateway for all my internal hosts, I just don't want any address translation. The packets would appear to be from the internal clients IP. Just Curious. Bill ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 Exchange Server Resource Site: http://www.msexchange.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: tshinder@xxxxxxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')