Isolate WIFI from wired network
I have an Xfinity XB6 gateway. I also have my own wired router connected to the primary ethernet port on the gateway. I want to isolate all WIFI traffic thru the XB6 from the remainder of my network. My Blink cameras, Smartthings hub, and Amazon devices are all WIFI; and I would like to prevent access to anything else on my network, in case one of those systems are hacked.
The XB7 gateway has multiple ehernet ports, would this isolation be easier with an updated gateway?
There isn't much info on the internal security features of the gateway. I ask for any guidance on this question.