How to Configure Passive Port Range for the FTP Service in IIS?

The following article will assist you to configure a passive range for FTP service in the IIS web server.

1. Go to IIS Manager. In the Connections pane, Click on the server tree.

2. Double-click the FTP Firewall Support icon.

Configure FTP Firewall Settings in IIS

3. Enter a range of values for the Data Channel Port Range. For example, Passive Port Range 10000 - 30000

Configure FTP Firewall Settings in IIS

4. Once you have entered the port range for your FTP service, click Apply in the Actions pane to save your configuration settings.


  • The valid range for ports is 1024 through 65535. (Ports from 1 through 1023 are reserved for use by system services.)

  • This port range will need to be added to the allowed settings for your firewall server.

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