Is it possible to connect two computers together that have WiFi enabled (but they aren't connected to any ISP like Comcast, Xfinity etc)?
For instance, if both computers are connected to a router but that router isn't connected to the public internet (but it still has an IP address) would it be possible for both computers to send packets across to each other if they knew the respective IP Addresses? Or do you always need an ISP to communicate to another computer.
I guess my question is can there really be a p2p network that's created outside of being reliant on an ISP/ For instance direct communication through WiFi or Bluetooth etc.