ftp passive ports and their state

[gabrix <gabrix@xxxxxxxxxxxxx>]

I have a debian sarge kernel 2.6 stable and proftpd as ftpd ... .My ftpd 
is open to internet users and i accept passive ftping.I have inserted a 
PassivePorts 60000 65534 directive in proftpd.conf for passive 
connections which it's still a hole of 5534 ports in my firewall.Could i 
accept connections to this ports  in a state ESTABLISHED,RELATED in my 
iptables script ?

Thanks !