Port trigger is a way to automate port forwarding in which outbound traffic on predetermined ports ('triggering ports') causes inbound traffic to specific incoming ports to be dynamically forwarded to the initiating host, while the outbound ports are in use.
Please assign the port with below format:
1. Port Ranges (50-60)
2. Individual Ports (21, 25, 80)
3. Mixed (3000-5000, 8080)