Home network needs one or more wired/wireless routers
Typical flat topology of default ISP providing network.
Cons of default flat networking:
1 Flat networking is not secure, if one of the devices get infected that can transmit to all.
2 Average wireless signal strengthen, and it’s not strong enough for up 2000 square feet home.
3 ISP router only has basic firewall ability.
Layered and categorized your home network
Why?
1 Layered routers can provide extra security features(multi-NAT/firewall) for home network which can transfer a basic flat networking to a layered and defensive one.
2 Categorized devices are easy to manage, 2.4G router will be enable to IoT devices, e.g. printers, door cams and other old Wi-Fi ability only devices.
A secured home networking
Why?
1 A secured home networking can leverage all the features of your routes.
2 No commercial security equipment is needed.
3 A Pfsense firewall need to be deployed in between ISP router and other routers.
4 SSIDs should be hiding from router SSID broadcasting.