NetworkManager breaks macchanger

Using NetworkManager I'm unable to use macchanger ( to change my mac address. Does anyone know why this is?

Steps to reproduce:
On Ubuntu Breezy (though I suspect all distributions suffer from similar), package from

1. Connect to a network with NetworkManager
2. $ sudo macchanger -A eth1
3. macchanger reports a successful mac address change, NetworkManager senses the interface is down, then reloads the interface using the old MAC address.

Where is NetworkManager getting the mac address from? Does it store it known addresses somewhere?



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