MAC anonymization

Hello everyone,
I’m trying to anonymize my MAC addresses. I use a ethernet cable. I looked in the documentation but it doesn’t helped me so much. Anyone can help me with that? Thank you

You would need to perform this in your net-vm, which is where the physical hardware is assigned.

Thanks Plexus, that’s what I made, in the Net-VM… But it only add a second MAC address (this one is randomized) and the first MAC address is the same that my real one and take the name of ‘‘permaddr’’.

Now I’m trying that: Contents/ at master · Qubes-Community/Contents · GitHub.
It’s writted that I have to modify the /rw/config/NM-system-connections/*.nmconnection files, but I don’t find it.