My project with ISA server 2006 is just about done and i'm getting ready to move on to another company. The company i work for is moving their offices to a new location. Which means they will be moving over to a new ISP provider and new static IP addresses will assigned to them.
My question is when they move to the new provider they will probably need to change the IP Address of the External NIC card on the ISA server. As far as i can tell, all of the firewall rules have been created to interact with Zones such as Internal Network, External Network and DMZ network. As far as the external NIC is concerned will that be the only thing they to change to ensure ISA is still functioning properly?
My feeling is yes but i would like confirmation from the experts.