Re: iptables, ftp and dnat?
> > It hangs after ls? Sounds like your data traffic gets jammed
> > somehow.
I know I'm jumping in halfway thru the conversation so this might have
already been mentioned. But you may want to check if the firewall is
blocking ICMP packets preventing PMTU being figured out correctly. The
scenerio you're describing sounds too much like the case of
'Fragmentation needed but DF flag is set'. Letting the right ICMP
packets (4/3, I believe) thru in your firewall usually solves these