proftpd not accepting outside connections
 

I'm having some problems connecting from the outside world to my linux computer with proftpd.

I'm basically running the linux machine behind a firewall network (Win2K with ICS, ports 21 forwarded to the linux machine).

I can connect via localhost. I haven't tried from the win2k box yet. When I try to connect from the outside world, I get:

NcFTP 3.0.3 (April 15, 2001) by Mike Gleason (ncftp@ncftp.com).
Sorry, no server available to handle request on 192.168.0.101.
Server hungup immediately after connect.

any thoughts?