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Date:   Tue, 17 Sep 2019 20:44:19 +0200
From:   Bob Marcan <bob.marcan@gmail.com>
To:     linux-wireless@vger.kernel.org
Subject: Re: [RFC 0/4] Allow live MAC address change
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On Tue, 17 Sep 2019 10:40:49 -0500
Denis Kenzior <denkenz@gmail.com> wrote:

> Hi Kalle,
>=20
> > For user experience scanning and DHCP are also important, what kind of =
> numbers you get when those are included? No need to have anything> precis=
e, I would like just to get an understanding where we are> nowadays. =20
>=20
> Scanning heavily depends on the RF environment and the hardware.  In our =
testing ath9k takes stupid long to scan for example.
>=20
> But in a sort of best case scenario, using limited scan and no mac change=
, iwd connects in ~300ms.  People have reported that they have not finished=
 opening their laptop screen and they're connected, so at that level of lat=
ency, every millisecond is important and totally worth fighting for.  Rando=
mizing the MAC would penalize our connection times by 2X (300 ms at least).=
  And Android folks have reported the penalty to be as high as 3 seconds.  =
So this needs to be fixed.  And do note that this is a feature every modern=
 OS implements by default.

Randomizing the MAC is a stupid decision.
Do you realy expect that this will add something to the security?

B. Mar=C4=8Dan