Yes it can Securenat clients outbound internet traffic will be intercepted by the web proxy service.. Greg Mulholland ________________________________ From: isalist-bounce@xxxxxxxxxxxxx on behalf of Ara Avvali Sent: Tue 30/05/2006 2:33 PM To: isalist@xxxxxxxxxxxxx Subject: Transparent Proxy Hi Everyone, As far I know and understand, doing so is not possible with ISA server, right? You can't force/deploy ISA server without touching clients otherwise they can't browse the net. According to this article http://en.wikipedia.org/wiki/Proxy_server in transparent mode, all nat requests are routed to proxy which opposed in ISA you have to setup IE or deploy firewall client. Any clarification is much appreciated.