I can download file with web browser with BM 3.8 using FTP... but cannot
when using FTP under command prompt: The FTP command client is able to
connect to any FTP servers and passes the authentication, but fails when
issuing the ls command. What are the filter exceptions that should be
put in filtcfg to enable FTP?

I also notice that there are Passive FTP and Active FTP... How should I
setup filtcfg to handle both FTPs?