Using the Port Filtering Option Ubee Interactive
46 Ubee DDW3611 Wireless Cable Modem Gateway Subscriber User Guide • November 2012
For example, to prevent all Telnet access into and across your LAN, you would enter the
Start and End ports to be 23, select Both for Protocol, and click the Enabled selection
box.
Be careful using port filtering by port range as you may accidentally prevent traffic that
should pass through your network (for example, http or email). To see what applications
use each port, refer to Using the Forwarding Option on page 47 and click the Port Map
button.
To configure port filters:
1. Click Gateway from the main menu.
2. Click Port Filtering from the left side menu. Field descriptions are listed below the
screen example.
Label Description
Start Port Defines the starting port number
End Port Defines the ending port number.
Protocol Selects the protocol type. Options are UDP, TCP, or BOTH.
Enabled Activates the rule and filters out all traffic on the specified
ports.
Apply Saves all screen changes when clicked.
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