I recently moved across country and for the next year will be living at a home that I do not control the network of. I want to get some of my stuff behind my previously running pfsense firewall.
Lets assume I can not change anything on the first firewall. That is still up in the air.
What would I need to do to at least allow internet traffic, but block all other devices on the other network from connecting? The one issue I see already is both networks are on 192.168.1.x, so I will have to change network to 10.10.x.x or some other subnet, unless I can change the other router. Again, up in the air on that still.
I am trying to do this with as minimal messing around as possible, if possible. But, if I have to rebuild my network, I guess I will have to do that.