How to activate MAC address randomization?

[Chris Laprise <tasket openmailbox org>]

Hi,

I just installed NetworkManager 1.2 in fedora 23 in the hopes that I can 
get mac randomization working. Only problem is there's no sign of a 
setting for this in nmcli or the applet. I found a reference to a 
setting on the NetworkManager.conf manpage which states:

       wifi.mac-address-randomization
           If left unspecified, MAC address randomization is disabled.

But its not clear what range of values should be specified here. The 
nm-settings manpage suggests this is a valid way to turn on randomization:

> [connection]
> wifi.mac-address-randomization=2

...in /etc/NetworkManager/NetworkManager.conf

However, it has no effect. I'm not sure what I'm missing here.

Regards,
Chris