Hi all! I was running Mandrake 7.1 and my firewall was in ipchains and everything worked fine, since then I've installed mandrake 8.0 and now I run iptables and now my firewall works for about a day or less, then I have to down the external interface and up again and then it works again for about a day or so. Does anyone knows what could cause this?? Or where I should look for the problem in the logs? BTW I am running firestarter for the firewall since I am not familiar with iptables syntax, I've also tried using InteractiveBastille with no luck, after spending 30 minutes anwering questions IP masquering was not working. Please help. Adriano