My router is owned and controlled by my ISP. They won't make any changes from their standard configuration, and don't want to tell me how it's configured. Over time I have a pretty good feel for the address range it assigns via DHCP. Question 1: If I assign static IP addresses for the nvr and cameras that are in the same subnet but outside what the router assigns, will I be causing any problems? Question 2: Will this closed router cause me any problems setting up a VPN? Other than the inaccessible router I like the ISP. The Internet connection is wireless and the router is integrated with a wireless receiver.