Samsung SCH-LC11 User Manual Ver.fd04-f6 (English(north America)) - Page 27

Allowed Applications Click or touch applications you wish to give access to the internet while the Port Filtering feature is enabled. All other applications will be blocked. Note: DNS (Domain Name Server) should always be enabled when using Port Filtering. Without DNS, it is not possible to convert a Domain name (for example, www.msn.com) to an IP address. DNS is used by E-mail, FTP, and many other protocols as well as by Web browsers. Custom Applications Define your own Allowed Applications. Define and enable additional applications. • Application Name: Enter a name for the application you are defining. • Port Range: Define the ports used by the application. These ports refer to outgoing traffic. - For a single port, enter the port number in both the Start Port and End Port fields. - For a port range, enter the beginning of the range in the Start Port field and the end of the range in the End Port field. - Up to 5 ports or port ranges can be defined. Use as many rows as necessary; unused rows can be left blank. • Port Type: For each port range (each row), select the protocol (TCP, UDP, or both) used by that port range. Buttons • Apply: When this button is clicked, all settings (enabled, name, port settings) for all applications are saved to this device. • Delete: Click or touch this button to erase a Custom Application definition. • Revert: Click or touch this button to discard all changes made since the last Apply operation. • Add: Click or touch this button to add another row for defining a Custom Application. Securing Your Device 23