Yes, it is possible. I have one setup right now with five NICs, and it works great (1 external, 1 perimeter, 3 internal). You can pass any protocol (login credentials, etc.) you want over any of the NICs, "if you set it up right". -----Original Message----- From: James [mailto:jmay@xxxxxxxxxx] Sent: Wednesday, August 31, 2005 10:50 AM To: [ISAserver.org Discussion List] Subject: [isalist] Please help!! http://www.ISAserver.org Is this a flakey set up ??? cisco 1600 router 4 locations tunnel using gre at the routers --------->router------>clients routers are doing DCHP ethernet side is bound to public's and private. Computers at location B logon to DC @ location A through the GRE tunnel Here's my question the GRE tunnel between all 4 locations make up a DMZ?? Is it possible to and isn't more secure to have something like this router------>----isa with 3 nic's--------->internal network Can I pass login credentials through the ISA over the DMZ to the DC or setup a DC and pass AD replication over the DMZ seems like a more secure setup. Please help me out a little here Jim ------------------------------------------------------ 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 ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: dball@xxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=isalist Report abuse to listadmin@xxxxxxxxxxxxx