Now that I'm redaing my own post, I realise I didn't put my actual question in it.
 
Browsing FTP sites with IE doesn't work when the firewall is down (squid's still up) but downloading files from FTP servers (ftp.rpmfind.net for instance) is working allright.
It's as if browsing FTP sites is handled by the masquerading bit of IPtables, though I told IE to use the proxy server. I hope someone can figure this one out.

Hi,
 
I have a strange problem: I have Squid 2.4 running, and an IPtables firewall, both on the same RH 7.2 box. The box acts as a router for 1 win box. When both squid and the firewall are running, I can access every FTP site I like. However, when I stop the firewall I can't reach any FTP site anymore. IE waits for about 2 mins. then it seems to reach the FTP-site, but then, after 30 secs., comes with a timeout message. When I start the firewall script again, everythings fine again.
IE on my win box is configured to use the proxy for all protocols.
 
Notes: The firewall is configured for masquerading (due to games not working through the proxy) and when i stop the firewall script the last two rules are:
 
iptables -F INPUT
iptables -P INPUT ACCEPT
 
Thanx
Patrick

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