DirectX: Ports required to play on a networkIn summary:
SFC2:47624 TCP
2300-2400 TCP & UDP (but in theory only 2300-2310 is required for SFC2)
SFC3:6073 UDP
2302-2400 UDP (but in theory only 2302 and 2303 are required for SFC3)
(note a dash "-" above indicates a
port range)