I must switch ip addresses of the current network from 192.168.0.x subnet mask 255.255.255.0 gateway 192.x.x.x(range from dhcp on Lan)to 10.x.x.x subnet mask 255.255.0.0 (on Wan). Now, the client workstation changes are easy, but there are NT servers with sql server and also exchange server. What are the implications or problems to watch out for when switching the ip's on the servers. And how do I connect to the internet?