On Wednesday 2005-September-28 15:49, Piotr Holubniak wrote: > Lest assume that spoofed address is IP which is not assignet in the > local network. Netfilter logs incomming traffic but it shows MAC > address unknown or completely unpredictable (Windows shows all 0-ros, The MAC address is a layer 2 thing. It is only seen within a physical Ethernet segment. BTW/FYI, those are easily spoofed too; see ip(8) and ifconfig(8). > How can I make netfilter to log MAC address of the attackers > computer, not this one which is resolved by TCP/IP stack ? Is it > possible? Not that I know of. You don't see MAC addresses outside your segment. Not seeing them is a pretty strong indicator that they won't be logged. -- mail to this address is discarded unless "/dev/rob0" or "not-spam" is in Subject: header