[Freedombox-pkg-team] Bug#807724: freedombox-setup: macchanger does not work

[James Valleroy]

On Tue, 9 Aug 2016 16:09:29 +0200 Petter Reinholdtsen <pere at hungry.com>
wrote:
> [James Valleroy 2016-05-09]
> > NM 1.2 is now in Debian testing and unstable.
>
> So I guess it is time to get this working on the FreedomBox?
>
> I had a look at how to get this feature enabled. I found
> <URL:
https://blogs.gnome.org/lkundrak/2016/01/18/networkmanger-and-tracking-protection-in-wi-fi-networks/
>
> with some information about it.
>
> The relevant setting seem to be mac-address-randomization, and I found
> <URL:
https://mail.gnome.org/archives/networkmanager-list/2016-May/msg00062.html >
> giving clues how to set it up. For example running
>
> nmcli connection modify $CONNECTION \
> 802-11-wireless.mac-address-randomization always
>
> would enable it. One can also change the connection default value in
> /etc/NetworkManager/NetworkManager.conf. The allowed values according to
> <URL:
https://developer.gnome.org/NetworkManager/unstable/nm-settings-ifcfg-rh.html
>
> is 'default', 'never' and 'always'. 'default' will pick the value from
the conf file.
> 'never' is the normal default. I am a bit unsure what 'always' really
mean.
>
> When do we want to use the random mac address, and when do we want to
use the
> original one? Can we ask for a random one that is stable for a given
wifi network,
> making it harder to track a freedombox on the move while still getting
it to
> work on networks with MAC based access control?
>
> For this to work, I believe wpa-supplicant 2.4 or newer is needed. I
guess we
> should enforce it using a dependency somewhere.

NetworkManager 1.4 has some changes related to this:
- Also works for Ethernet devices.
- For wifi, no longer requires wpa-supplicant.
- There is a new setting assigned-mac-address, with special values
"random" and "stable".
https://blogs.gnome.org/lkundrak/2016/08/24/networkmanager-1-4/


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