Hi there. Please help with strange issuse. I have debian woody with 2.6.12 kernel + iptables.1.3.3. (unstable) under vmware workstation. I try to block connection to my PPPoE server (rp-pppoe) by mac-address of client. something like #iptables -I INPUT -m mac --mac-source blablag -j DROP . Line inserted showed by iptables -L -v -n but not block any IP-less requests from address specified. Ping or any IP protocols blocking success, but pppoe discovery, exchange and traffic pass the filter wthout any problem with no rule countr increment. How i can fix this thing? Or what i to do wrong?