i hate to bring this up, but if you have cisco gear with dhcp snooping enabled you can enforce this on the switch.
On 20/02/2010, at 8:49 PM, Jean-Francois wrote: > Good morning, > > Is it possible to do filtering through pf or blocking traffic based of MAC adress > recognition ? > > We want to identify the machines on the internal network based on their MAC > adress and filter. > > Can tools like pf fo this (not in my actual searches) ? another way ? > > Regards

