Dell 2350 User Manual page 82

firewall since only a single port (or a range of ports) is exposed to the Internet. You can
configure this port forwarding setting to create a custom rule that defines a specific port and
protocol for data traffic to pass through to the specific computer on your LAN.
An example is an HTTP server running on your LAN, which you want to be available to the
Internet. Your public IP address (that your ISP gives you) is X.X.X.X (The X is a number), and
you have a computer hosting the HTTP server at LAN address 192.168.2.2 on your Wireless
2350 (192.168.2.1) controlled LAN. You can configure 192.168.2.2 to have port forwarding for
port 80 (HTTP), then users on the Internet can go to http://X.X.X.X and get the HTTP server
(192.168.2.2). The data traffic entering service port 80 will be directed to the computer
(192.168.2.2), and other computers on your LAN will not see this data traffic.
For some Internet applications (such as Internet messaging and gaming applications), you can
configure this port forwarding setting so that these applications can function correctly behind
the firewall. These applications are required to have specific TCP/UDP ports. The ports for
these applications and the protocol type will depend on what Internet services you are using.
Check with your service provider or application's user manual to have the information first.
Make sure you have the following ports set up as described below.
1. Click the ADD button first to add entries.
2. Enter the desired name or description in the Service Name field.
3. In the Incoming Ports field, enter a range of ports. If you want to specify only a single
port number, enter the same number in both fields.
4. In the Destination IP Address field, enter the IP address of the computer you want to
receive the connection request.
5. In the Destination MAC Address field, enter the MAC address of the computer you
want to receive the connection request.
6. In the Destination Port field, enter a port number or a range of ports of the machine to
which you are mapping.
7. In the Port type field, select TCP, UDP, or both protocols. The protocol could be
specified in your application's documentation.
8. Click the Submit button to activate the setting.
For example, if you want to play the game Fighter Ace II on a computer with an IP address of
192.168.2.3, enter 3 for the Destination IP Address. Find the MAC address of this computer
and enter it for the Destination MAC Address. Select TCP as the Port type. Enter 50000 and
51000 for two fields of Incoming Ports and also for the Destination Port. Click Submit
button to activate the setting. For other games or services, consult the application's user
manual.