hi
i discovered that there are ip addresses in arp list with zero mac, what means?
Hacking ?
ROS version?
I have seen smiiliar topics so maybe possible bug
http://forum.mikrotik.com/t/help-how-to-protect-router-automatic-mac-generate/94593/1
http://forum.mikrotik.com/t/router-rb450-and-750-mac-000000-00/94901/1