These settings are usually only needed when accessing the FTP Server through corporate or personal proxy- or firewall server. By default these settings are used for all sites, but you can override them by modifying the firewall settings in Site Manager separately for each site.
FTP Proxy/Firewall Settings
Use Passive Transfer (PASV mode ON)
By default, this settings is turned on. This helps software to make connection when Windows firewall is in use. It also helps to make connections, when other firewall configurations are in use. If you have no problems on connecting, but cannot see the remote file listing, try changing passive transfer mode setting.
Use Proxy/Firewall Server for FTP Connections
In corporate environments special proxy or firewall servers normally monitor all Internet connections. These servers limit the outgoing connections made to the servers outside the company and also restrict the incoming, potentially harmful connections.
Proxy/Firewall servers can be totally transparent, meaning that no special settings are needed here to make connections. But if this is not the case, you need to enable proxy/firewall use and enter proper connection parameters. Notice that you cannot guess these parameters, but you need to consult your network administrator for proper values. Tell administrator that you are going to perform FTP file transfer and need firewall login parameters for that.
Try to resolve host names locally
If you are using SOCKS v4 firewall, select this options to resolve Internet domain names to IP addresses locally, as SOCKS v4 server cannot perform resolving.
HTTP Proxy/Firewall Settings
If HTTP transfers are monitored by proxy or firewall server, enter connect parameters here. Again, consult you network administrator for more info.