For starters, you are not obligated to continue to use 192.168.0.0/24. In fact, choose any other RFC1918 address space besides that! The 10 space is a good but 172 says this someone who is clearly thinking about network design.
While network segmentation is good, assigning a cam a default gateway IP address that is not really a gateway will prevent it from talking out to the open internet. You can do this one of two ways: DHCP reservation or static assignment. Assuming 172.16.16.0/24 and your default gateway is 172.16.16.1, you would set on your cam a default gateway of 172.16.16.2.
I personally prefer to use DHCP reservations but consumer grade routers tend to have a goofy way of implementing DHCP so static assignments may be more practical from a management point of view.