User's Manual

3.3.12 Firewall - Port Filtering
Entries in this table are used to restrict certain types of data packets from your local network to Internet through the
Gateway. Use of such filters can be helpful in securing or restricting your local network.
Screen snapshot - Firewall - Port Filtering
Item Description
Enable Port Filtering
Click to enable the port filtering security function.
Port Range
Protocol
Comments
To restrict data transmission from the local network on certain ports,
fill in the range of start-port and end-port,and the protocol, also put
your comments on it.
The Protocol can be TCP, UDP or Both.Comments let you know about
whys to restrict data from the ports.
Apply Changes Click the Apply Changes button to register the ports to port filtering
list.
Reset Click the Reset button to abort change and recover the previous
configuration setting.
Delete Selected Click to delete the selected port range that will be removed from the
port-filtering list.
Delete All
Click to delete all the registered entries from the port-filtering list.
Reset Click the Reset button to abort change and recover the previous
configuration setting.
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