Our Sonic Wall is blocking PASV traffic from coming into the FTP server. The connection works okay on port 21, then when the server switches to the PASV ports, the firewall drops the connection, even though the ports are specifically assigned. If I uncheck the
FTP Bounce Attack Prevention box on the diag screen, PASV traffic is not blocked, however, this causes us to lose phone service and DNS. The firewall ends up sending packets back and forth with the Edgewater device causing the problem.
Any ideas on resolving this problem is greatly appreciated.
March 5, 2008 4:08 PM
June 8, 2012 2:35 AM