Setting up a second router for practicing

[GuyM142]

Originally Posted by Jacob Abel

You can run the robot/robots through a primary router by just bridging the radios to the primary routers. If you are using 2 roborios, you have to reconfigure the 2nd roborio to have a different domain name. The easiest way would be to change the team number on the 2nd roborio.
The upside of bridging like this is that all devices have access to the internet and you can push code without changing networks.

I don't think I understand how bridging works. Does the router with the bridge mode connects always to the router with the same SSID?
If so how does it work with more than one router?