Client has small network, 1 AD/DHCP/DNS Box - Server 2008 R2 Enterprise with one 192.168.1.x/24 network. Has been expanding throughout years with computers, ip phones and ip cameras and have run out of ip addresses. What is the easiest way to acquire more IPs? I assume by changing subnet mask to /16? Is there a way to do this with very little downtime to network? Can I and if so, how, export my current dhcp scope and reservations, modify the file to /16 then import back? Thanks for help.