On Thu, Dec 21, 2023 at 2:49 PM Tom Hughes via devel
<devel@lists.fedoraproject.org> wrote:
>
> On 21/12/2023 14:33, Steven A. Falco wrote:
> > On 12/21/23 08:53 AM, Neal Gompa wrote:
> >> On Thu, Dec 21, 2023 at 8:52 AM Leigh Scott <leigh123li...@gmail.com>
> >> wrote:
> >>>
> >>> I'm -1 for this change, it shouldn't be enabled by default as it will
> >>> cause issues for users using router mac filtering.
> >>
> >> What this seems to state is that the MAC address would be unique for
> >> each SSID, but once it's picked, it would be locked in. That should
> >> still make router-level MAC filtering possible, since the MAC address
> >> would be stable for that network.
> >
> > What would happen on a network where I've set up the DHCP server in my
> > router to map mac addresses to static IP addresses?  Sounds like I'd
> > have to disable the feature, at least on my home network.
>
> Either that or you would make a one off change to your DHCP server
> to use the new per-network MAC address instead of the old one.

Would it not have to be done every time
one reinstalls their system?  And on
each SSID one connects to (so connect
to your HOME-5G (for your 5GHz AP),
and HOME-2.4G (for your 2.4GHz AP),
wifi networks would get different MAC
addresses as the SSID is different?)

(side note:  some DHCP servers may
not like assigning different MACs to
the same IP address to allow individuals
to choose their own access point
frequency range based SSID).

While doing so as an individual would
probably be minorly annoying, for some
orgs, "re-imaging" a system is the
standard practice for repair (or
redeployment, or for each reboot
for guest systems) and having a stable
MAC address (whether wired or wireless)
is necessary for institutional requirements.

And for some orgs with advanced 802.1x
network access controls, changing MAC
addresses may result in even more
additional tasks across different parts
of the organization (yes, one should not
use mac authentication alone for
802.1x, but that is a different topic).

For orgs with a more sophisticated
process, updating their ansible
provisioning scripts to change the
NetworkManager to use the hardware
address may be possible, although for
others, that will be one more step for
tech support to have to do manually
(and, of course, occasionally forget to
do, as they are always overworked), but
at the very least the proposal should
probably call out that change
requirement more explicitly for such
orgs.

Given the unknown impact on larger
organization customers (rather than
individuals taking their own devices
to an overpriced coffee shop), I am
currently leaning on the -1 side.
--
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