gistfile1.txt

PORT FORWARDING (ArmA3) (Firewalls)

ArmA3 uses the same default ports as ArmA2 with the addition of 2 steam ports. So if you intend running A2 and A3 servers on the same machine, you need to edit the ports used
Default ports are all UDP and as follows

    2302 (Arma3 Game port)
    2303 (Server reporting)
    2305 (Von)
    8766 (Steam port)
    27016 (Steam query port)




To define the ArmA3 Game port used,
state -port= **** in your command line arguments (Where *** is the new initial ArmA3 Game eg 2302)

and to define your Steam ports
add the following lines to your CONFIG_Vanilla.cfg (editing the actual port numbers as required)
Code:

// STEAM
steamport=8766;
steamqueryport=27016;

If you are running multiple servers, i would suggest the following format

SERVER 1

    2300 UDP (steamport)
    2301 UDP (Steam query port)
    2302 UDP (used for game)
    2303 UDP (used for server reporting)
    2304 UDP (? no information available for this port useage)
    2305 UDP (used for VoN transmissions)


so open ports 2300-2305
and leave at least 10 ports between the next server set

SERVER 2

    2320 UDP (steamport)
    2321 UDP (Steam query port)
    2322 UDP (used for game)
    2323 UDP (used for server reporting)
    2324 UDP (? no information available for this port useage)
    2325 UDP (used for VoN transmissions)


so open ports 2320-2325
leave at least 10 ports then repeat the process for No3 server etc