>>I've searched Google but found nothing worth interest. >..not even in http://tldp.org/ ??? Of course, I'm sorry... Looks like I'm an amateur in searching the Web, too. Well, this: http://tldp.org/LDP/intro-linux/html/sect_04_02.html helped me a bit (can't forget Jeremy :) however I still don't know what can be the cause of my problem (from what I've read, these iptables v1.2.3 entries really _shouldn't_ be where they are...) Michal Kepien