NETGEAR DM200

The previous figure shows two custom port forwarding rules.
5. In the table, select the radio button for the service or application name.
6. Click the Delete Service button.
The rule is removed from the table.
Application Example: Make a Local Web Server Public
If you host a web server on your local network, you can use port forwarding to allow web requests from
anyone on the Internet to reach your web server.
To make a local web server public:
1. Assign your web server either a fixed IP address or a dynamic IP address using DHCP address
reservation.
In this example, your modem always gives your web server an IP address of 192.168.5.33.
2. On the Port Forwarding page, configure the modem to forward the HTTP service to the local address
of your web server at 192.168.5.33.
HTTP (port 80) is the standard protocol for web servers.
How the Modem Implements the Port Forwarding Rule
The following sequence shows the effects of a port forwarding rule:
1. When you enter the URL www.example.com in your browser, the browser sends a web page request
message with the following destination information:
• Destination address.The IP address of www.example.com, which is the address of your modem.
• Destination port number. 80, which is the standard port number for a web server process.
2. The modem receives the message and finds your port forwarding rule for incoming port 80 traffic.
3. The modem changes the destination IP address in the message to 192.168.5.123 and sends the message
to that computer.
4. Your modem performs Network Address Translation (NAT) on the source IP address and sends the
reply through the Internet to the computer that sent the web page request.
Manage Port Forwarding
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Broadband High-Speed DSL Modem Model DM200