Currently I have network of 70 devices with static IP's from 192.168.0.1 - 192.168.0.240 (subnet 255.255.255.0). All the devices get internet from gateway 192.168.0.3 (which is TP-Link load balancing router with 3 DSL connections). We have 4 unmanaged switches where all devices are plugged in.
I want to move 5 PC's from current network to another network so that there in no access between "network 1" and "network 2" for security reasons. This is simple I could do it by giving IP's 192.168.1.1 to 192.168.1.5 (subnet 255.255.255.0) to those 5 machines. Those 5 machines were able to communicate between themselves which was needed and they could not access original network (which was also needed).
The only problem is that how do I make them access internet using 192.168.0.3 which is the only internet connection in the office.
Please help me how do enable internet access in network 2 in current scenario. I can buy any hardware but we don't want to buy another DSL connection for "network 2"