I need to change the IP range of my local lan. The reason being my remote VPN users tend to have the same IP range as our corporate network. This tends to cause problems with network printers... So... I need the ability to add IP addresses to my servers. And then I plan to change my DHCP range to accommodate this new range. So, I'll end up with my domain controllers, email, and file/print servers having IP addresses both two different ranges. I plan to work with Cisco in regards to my network appliances seeing this new range, however, what precautions or issues should I be prepared for in regards to adding IP addresses to my servers?