Re: Sometimes different network interface name?
Tixy <tixy@yxit.co.uk> writes:
> The number in the name looks like a MAC address and its value is in the
> 'locally administered' range, i.e. not something baked into the device
> by the manufacturer.
It's an LTE device so it doesn't have a MAC address even though it
presents an ethernet-like interface. Or I guess it's the qmi-wwan driver
which does that. Random generation seems likely since the number is not
the device serial or IMEI, at least.
> Is that number always the same?
It's only happened twice so far, the other time it was wwx0a87b909a663
instead of wwx0a697e2d934f so probably random.
> I'm wondering if there is a MAC randomisation process running on you
> system (sometimes used for privacy concerns) and that randomisation
> may be during boot with different timing compared to systemd/udev
> renaming the device from wwan0.
I'd assume no, other interfaces don't seem to be affected. I definitely
didn't install anything like that so only if it's a default in Debian.
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