How do I change which ports the Arma 3 server uses?

[aaronfranke]

How do I change which ports the Arma 3 server uses? I would prefer to use something other than the default 2302-2305 or whatever. I can't seem to find a setting in the server config wiki page https://community.bistudio.com/wiki/server.cfg

[NZPorterDJ]

use the -port= commandline option with the ArmA3Server.exe.

[Vitdom]

The UDP port range used by Arma 3 looks like this:
Main gameport 2302 (the default Arma 3 + VON Game port)
2303 (STEAM query, +1)
2304 (Steam port, +2)
2305 (VON port, +3 - not used atm. but allocated)
2306 (BattlEye traffic, +4)

So the port range used is the Main gameport - Main gameport + 4, i.e. 5 ports in total.
For example if you have 2 servers then you set -port=2307 to use the range 2307 - 2311.