LevelOne WAB-5120 - Manual (Page 33)

Destination Port Filtering: The destination port filtering enables you to restrict certain ports of data
packets from your local network to Internet through the WAB-5120 300Mbps 5G Wireless Outdoor PoE
Access Point/Bridge. Use of such filters can be helpful in securing or restricting your local network.
Figure 19 Destination Port Filtering
Port Forwarding: The port forwarding allows you to automatically redirect common network services
to a specific machine behind the NAT firewall. These settings ne are only necessary if you wish to host
some sort of server like a web server or mail server on the private local network behind the router’s
NAT firewall.
Figure 20 Port Forwarding