Samsung SEC-LC11ZKAVZW - Manual (Page 26)

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Port Filtering
Port Filtering blocks outgoing Internet traffic. When enabled, only
traffic from selected applications can access the Internet. Traffic
is identified by port number.
Note: DNS should always be enabled when using Port Filtering. Without DNS,
it is not possible to convert a Domain name (e.g. www.msn.com) to an
IP address. DNS is used by E-mail, FTP and many other protocols as
well as by Web browsers.
Enable Port Filtering
• Enable Port Filtering: Click or touch the checkbox to enable Port
Filtering.
When the featured is enabled only traffic from selected applications
from the Allowed Applications list are allowed access to the internet.
When the featured is disabled all traffic is allowed to access to the
internet.
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.
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.