Create subnet for cable-connected devices
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I have a network that is managed by an OC200 controller, connected to an ER605 router.
The access of general devices (PCs, smartphones, etc) is done via wireless network, connected to EAP 235 connected via cable to the switch connected to the ER605.
All these devices are on the 192.168.0.1/24 subnet.
However, I will put a server machine connected directly via cable to the switch that connects the ER605 and OC200.
As this connection is made directly to the switch, the server is on the 192.168.0.1 subnet.
My problem is that I don't want this server to be on this subnet, because I want to prevent people from the first subnet from accessing this server, I would like to have a subnet dedicated just for this item (eg.: 192.168.50.1/24). Because this item will also have some doors open for external access, so the more isolated, the better.
How do I create a subnet for this item from the OC200? Will I need any more hardware for this scenario?
I tried to create a LAN like the image below, but after that the internet access to the IP was not accessible. And I don't even know if it's correct.
On the new server machine we configure its IP as being fixed for this subnet (eg: 192.168.50.100), and in the DNS server we put the IPs of a public DNS.
