What I want is, that for example, all my home computers can have access to the page of configuration of my router, but the rest cannot have access to it. With the word "rest" I mean to people that could have hacked my wi-fi password and can access to the configuration page of my router and can harm it with some bad configurations. I'm going to explain this more clearly: I want that my home computers have access to internet (I dont want to block that), what I want is to block the ACCESS TO THE WEB PAGE of my router, the one that starts 192.168.1.x (gateway), that web page. I thought of a firewall, but I dont know how to configure it properly, or if you can bring me other options to achieve this. Thanks in advance.