Hey guys, first I gotta say that I love m0n0wall.
We have had some problems with ftp servers however.
login works fine, but when you try to list, the client complains it
could not make a data connection.
I was wondering if you are using the ip_conntrack_ftp module for iptables?
Just FYI, we are using NAT, and the firewall allows incoming tcp/udp
for ports 20-21.
We were not using the one-to-one mode, but in doing so, and opening
some more ports, we were able to resolve the issue.
Just wondering if I can get some thoughts back on this.
Sorry I dont have all the details handy, but I can get them tomorrow at work.