USING WINDOWS FIREWALL WITH NON-SECURE FTP TRAFFIC
To configure Windows Firewall to allow non-secure FTP traffic, use the following steps:
Open a command prompt: click Start, then All Programs, then Accessories, then Command Prompt.
To open port 21 on the firewall, type the following syntax then hit enter:
c:/> netsh advfirewall firewall add rule name="FTP (non-SSL)" action=allow protocol=TCP dir=in localport=21
To enable stateful FTP filtering that will dynamically open ports for data connections, type the following syntax then hit enter:
c:/> netsh advfirewall set global StatefulFtp enable
