MAC randomisation and DHCP pools

Mike Richardson mike.richardson at
Sun Jul 26 12:40:11 UTC 2020

> I think in the short term setting the lease time to 24 hours would free up
> old leases after the MAC address changes, meaning the old client effectively
> goes away. Public places like shopping malls, should already have shorter
> leases due to the massive churn in clients, so it's not going to bother them
> much.

Thanks for the advice but I'm really trying to understand what the behaviour
of DHCP would be in the original scenario (100 addresses, 50 clients, 7 days

> >>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.



Mike Richardson

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