How to open ports, fw 1.x Print
These steps apply to modem/routers with firmware version 1.x.

Step 1 Open your web browser and enter the IP address of the router (10.1.1.1). Enter user name (admin) and your password (admin).

Step 2 Click on Advanced at the top and then click Port Forwarding on the left side of your screen.

Step 3
- Enter the Rule Name to identify the entry, e.g. WEBserver.
- Enter the IP address of the computer you want to run your application from (server) next to Private IP Address.
- Select protocol type (e.g. TCP or UDP)
- If you want to open just one port: enter the same port number under Port Start and Port End and Port Map.
- If you want to open a range of ports: specify the range under Port Start and Port End. Leave Port Map blank.

Step 4 (Optional) If you are opening ports for FTP, Telnet or other service, please make sure this service is not additionally blocked by the router's firewall. You can verify this under Advanced > Firewall > Service Filtering.

Step 5 Click on Apply. This should take you to Tools > Admin page.
Under Save and Reboot > Force the router to system restart > click on REBOOT button. This will save the settings and reboot the router.

Because our routers use NAT (Network Address Translation), you can only open a specific port to one computer at a time. For example: If you have 2 web servers on your network, you cannot open port 80 to both computers. You will need to configure 1 of the web servers to use port 81. Now you can open port 80 to the first computer and then open port 81 to the other computer.

Note that the computer/device you are opening ports for should have static IP:
Under Control Panel > Network Connections > Local Area Connection > Properties > Internet protocol TCP/IP > Properties:
IP address: 10.1.1.3 (each computer will require a different IP)
Subnet mask: 255.0.0.0
Gateway: 10.1.1.1
DNS: 202.129.64.198 (or whichever your provider is using)

Please note that from inside your LAN you will not be able to access your server using its public IP address or name. On your LAN you will need to use its local IP address instead (10.1.1.3).

Be aware that many Internet Providers are blocking commonly used ports like 80 and 21, hence you will not be able to host a WEB site or FTP site even if you will open the necessary ports in the router.

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