Arma 3 Server Ports Reference
All required UDP ports for your Arma 3 dedicated server — game, Steam query, BattlEye, and VON.
Default Ports
All ports are UDP:
| Port | Offset | Purpose |
|---|---|---|
| 2302 | +0 | Game port + Voice over Net (VON) |
| 2303 | +1 | Steam query |
| 2304 | +2 | Steam master |
| 2305 | +3 | VON (reserved, not currently used) |
| 2306 | +4 | BattlEye traffic |
Changing the Base Port
Set -port=XXXX in the startup parameters. All other ports shift automatically (+1 through +4).
Multiple Server Instances
Leave at least 100 ports between instances:
- Server 1: 2302–2306
- Server 2: 2402–2406
- Server 3: 2502–2506
Related Guides
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