Roland: I check my dhcp-server list an have more than 50 hostnames called “desktop” or “PC” or “pc” or “user” etc etc
I think the solution can be around the new “L2 Mesh Protocol” i am trying with excellents results, my network now is more stable and fast.
And i can see how this Layer 2 protocol know all hosts of the network and charge all hosts MACs of the network in /int mesh fdb table of each node of the net…
MT guys, can be this a possible future solution to wired and wireless network using this new protocol to prevent cloned MACs from different places?
This is my little grain of sand, I hope can help to invent a solution to this famous problem that we have crazy at all networks administrators 
Best Regards!