Hi,

> 
> iptables -t mangle -A FORWARD -p tcp -o eth0 -s 0/0 --dport ftp -d 0/0 -j MARK 
> --set-mark 2
> iptables -t mangle -A PREROUTING -p tcp -i eth0 -s 0/0 --dport ftp -d 0/0 -j MARK 
> --set-mark 2
> iptables -t mangle -A FORWARD -p tcp -o eth0 -s 0/0 --dport ftp-data -d 0/0 -j MARK 
> --set-mark 7
> iptables -t mangle -A PREROUTING -p tcp -i eth0 -s 0/0 --dport ftp-data -d 0/0 -j 
> MARK --set-mark 7
> iptables -t mangle -A FORWARD -p tcp -o eth0 -s 0/0 --dport http -d 0/0 -j MARK 
> --set-mark 5

instead of --dport ftp-data/ftp use -m helper --helper "ftp". Match for 
port does not work because of the nature of ftp. (passive mode) This can
be tricky.

Viktor

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