Cisco DDR2200 Series, Installation And Operation Manual, Page: 246 / 276

Chapter 7 Advanced Configuration
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5 Under Application Name, choose one of the following:

Click Select an Application and choose an application from the drop-down
list.
OR

Click Custom Application , and enter a name for the application.
6 Complete the fields on the screen as follows:

Under Trigger Port Start, enter the triggering port (start) that will cause the
residential gateway to open up the incoming port for the particular LAN
computer.

Under Trigger Port End, enter the triggering port (end) that will cause the
residential gateway to open up the incoming port for the particular LAN
computer.

Under Trigger Protocol, select TCP/UDP, TCP, or UDP.

Under Open Port Start, enter the starting port number of the service you
want to open on the firewall.

Under Open Port End, enter the ending port number of the service you want
to open on the firewall.

Under Open Protocol, select TCP/UDP, TCP, or UDP.
7 Click Save/Apply to open the ports on the firewall.
Closing a Port on the Firewall
To close a port on the firewall, complete the following steps.
1 Click Advanced on the main screen.
2 Click IP Networking . The NAT screen opens.