Soldato
If you use the boxes on ethernet then they use the normal networking for communication between them and get DHCP from the local DHCP server.
If the mini is connected to the main box via wifi then it uses a direct connection between the boxes, I am not sure how the main box connects to the internet when on WiFi as it doesnt appear to have any options to enter a SSID Password.
If the mini is connected to the main box via wifi then it uses a direct connection between the boxes, I am not sure how the main box connects to the internet when on WiFi as it doesnt appear to have any options to enter a SSID Password.