11N Wireless Broadband Router User Guide39Chapter 7 Virtual Server7.1 Port Range Forwarding Start/End port: Enter the start/end port number which ranges the External portsused to set the server or Internet applications. LAN IP: Enter the IP address of the PC which you want to set as the server. Protocol: Select the protocol (TCP/UDP/Both) for the application. If you are notclear about the protocol you are using, you can select “Both”. Enable: Click the Enable checkbox to bring the set rule into effect. Delete: Clear all settings of this item. Well-known service port: The well-known protocol ports are listed in the drop-downlist. Select one and select a sequence number in the ID drop-down list and then click“Add”, this port will be added automatically to the ID list. For other well known serviceports that are not listed, you can manually add them to the list. Add to: Add the selected well-known port to the policy ID.