MAC randomisation and DHCP pools
mike.richardson at manchester.ac.uk
Fri Jul 24 10:59:09 UTC 2020
> Hi Mike,
> This is not something new, it has been around since IOS 8 in 2014. I think
> this page summarises how it works and has links to Apple's site with more
> It appears that it randomises the MAC address when the device is passively
> scanning for networks and other particular settings are enabled or disabled,
> so systems can't use the MAC address to persistently track wherever you go.
> However, it seems that any associations/joining of networks is based on the
> actual MAC address.
> Or am I talking about something else entirely different?
Something new I believe:
Apple, in IOS14, are going to implement the changing of MACs every 24 hours
as the default, and different ones for each SSID, I believe.
I'm just trying to evaluate the impact on things like DHCP, but I'm not sure
about exactly what happens when pools are, sort of, exhausted.
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