How to Configure WinFTP Server for use with a DSL router or cablemodem?

Step 1 - Configuring WinFtp Server

The following steps will configure WinFtp Server to work with your router.
For this step, you will need to know the External IP address of the router.
our scenario, we used 65.128.123.3.

If you don't know your EXternal IP or have a dynamic External IP, you can get it from a web file.

1. Launch the WinFtp Server program.

2.Click the Option Button.

3. In the tab pane of the Pasv Mode. Set the Port Range values to be 10,000 to 10,500.

You can choose any number between 1024 and 65535, but we recommend that you limit the range to as few ports as you need. When a user generates a directory listing or uploads/downloads a file from your server, WinFtp Server will use a port. Once the file transfer has completed, the port goes back into the available list to be used again. So if you expect that you will only have 10 people download/uploading files at the same time, you can limit your port range to about 20 or 30 ports. If you expect to have 100 simultaneous users, then 200-300 ports is recommended.

4. Enter the External IP address of your router in the field labeled Fixed IP.

If you don't know your EXternal IP or have a dynamic External IP, you can get it from a web file.

5. Click on the OK button to save the changes.

Step 2 - Configuring your router

The following steps will configure your router to work with WinFTP Server. Our test scenario was done using a LinkSys router, other routers may not have the same process.

Please refer to the User's Manual of your router for instructions on configuring Port
Forwarding features.

For this step, you will need to know the Internal LAN IP address of the WinFTP Server.
In our scenario, we used 192.168.1.123.

1. Launch the configuration program for your router. In our case, it is web-based so
we used our browser.

2. Open the section that is used to configure the Port Forwarding features of your
router.

3. Forward Port 21 over to your Win FTP Server at IP 192.168.1.123.

4. Also forward the PASV Port Range specified in Step 1 to 192.168.1.123. This is necessary so that when the FTP client issues a PASV mode command to the WinFtp server, the FTP client can successfully open the data channel to the server.

5. If you have Implicit SSL enabled on your WinFTP Server, you will want to forward Port 990 over to 192.168.1.123 also.

6. Save the new router configuration and Reboot your router. You may need to physically recycle the power on your router to do this.