Should be fine as long as any listeners are not set to use a specific IP Address. S From: isapros-bounce@xxxxxxxxxxxxx [mailto:isapros-bounce@xxxxxxxxxxxxx] On Behalf Of John T (Lists) Sent: Saturday, September 02, 2006 2:31 PM To: isapros@xxxxxxxxxxxxx Subject: [isapros] New server I have not been able to find specific information stating you can not do this nor that you can. At a client I will be replacing their existing ISA server with a new server with W2K3 and ISA 2006. What I would like to do is bring up the new server and fully configure it using a different external and internal IP addresses. Then when ready, shut down the old server and change the internal IP address to the old one and add the old external IP address to the new one. It seems ISA should pickup on the new IP and auto add it to rules, correct? Or will I have to reconfigure the ISA server? John T eServices For You "Seek, and ye shall find!"