Peter Serwe wrote:
So basically, you're saying you'd want to allow or disallow traffic based on mac address? Seems like you could put mac filters on a number switches, Cisco being the most easily documented by Mr. Google.
Be a lot faster than any kernel, and a total waste of BSD. If you can do it on Linux via some other mechanism, go for it.
Or perhaps use a VLAN trunk to the switch with the devices you want to isolate on different VLANs. This gives you a different interface/subnet per VLAN for more natural control.