1. Ports use for UDP Packet Forwarder

This depends on the transfer port of the server you are connected to.

Usually UDP port 1700

2. Ports used for Base Station Connection

This depends on the transfer port of the server you are connected to.

Usually TCP port 443 

3. Ports used for LoRaWAN MQTT Bridge Connection

This depends on the transfer port of the server you are connected to.

Usually TCP port 1883/8883

4. Fire wall to keep internet detection

The gateway will send data via 1.1.1.1/8.8.8.8 to detect if the internet is active.

Which need the firewall allows ICMP data to pass through.