Making a Public Server Using RT311 or RT314

Servers on the private LAN can be make visible to the internet by routing the appropriate traffic to the servers on the private LAN. The traffic type is determined by the port number in the TCP/IP packet. E.g. Some well known ones are port 80 traffic for web (http) and port 21 for FTP.

1. On a system connected to the router (on the LAN), click "Start" (The Windows Start Button)
2. Choose Run.
3. Type telnet 192.168.0.1 in the dialog box. (If you changed the address, use that instead).
4. Type the user name and password to access the internal menu of the router.
5. Choose menu 15 by typing 15 and click Enter.
6. Configure the port number (E.g. for Web server, 80 is the port number) and the proper IP address (the private address where you want you traffic routed).

The RT311 and RT314 contain a default filter that prevents Web (HTTP), Telnet and FTP servers on the LAN side of the router from being accessed from the Internet, even if you configure the proper port forwarding in the PORTS menu. If you want to run a Web, Telnet or FTP server on your LAN and allow access from the Internet, you must change the appropriate filter rule for the service that you want to run. To change the filter rule, follow the steps below:

1. Use a Telnet client to access the internal Configuration Manager at 192.168.0.1.
2. Login using your current router management password (the default is 1234).
3. Select Menu 21 - Filter Set Configuration.
4. Enter 3 to select Filter Set Number 3 (TEL_FTP_WEB_WAN) for editing.
5. Press ENTER three times to reach Menu 21.3 - Filter Rules Summary. Three rules are shown: Rule 1 for Telnet (Port 23), Rule 2 for FTP (Port 21), and Rule 3 for HTTP (Port 80)
6. Enter the number of the rule that you want to change and press ENTER.
7. In the Filter Rule menu, use Tab or Enter to reach the Action Matched parameter.
8. Press the Space Bar until Action Matched = Forward.
9. Press ENTER three more times to save the menu and exit to the previous menu.
10. Press ESC twice to return to the top menu, and type 99 to exit the Telnet session.

For information on filters and using the router's Telnet interface, see the online reference manual.

Users from the internet should now be able to access the Web server through the router.

Give the server a static IP address to ensure routing is done correctly. If it is configured to obtain a IP address dynamically everytime it boots, it will likely get a different IP address and the router will route traffic to the wrong system.

(This document was formerly known as pwtKbgetsolution.cfm kid=N01914 or N101563)

Doc: N101480.asp June 12, 2005