Your firewall must allow the following ports. TCP ports must allow incoming connections and the UDP port must allow both incoming and outgoing connections.
Mainnet:
| Purpose | Protocol | Port | Flag |
|---|---|---|---|
| DHT | UDP | 18467 | -p |
| REST | TCP | 18469 | -r |
| WS | TCP | 18466 | -w |
| Heartbeat | TCP | 18470 | -b |
