Thank you all for the confirmation.

On Fri, Aug 4, 2023 at 4:14 PM Florent Fourcot <florent.four...@wifirst.fr>
wrote:

> Hello,
>
> I can confirm that we suffered something maybe related on all recent
> dnsmasq versions (I never tried with something older), since several
> years (first seen in 2021, with a v2.86).
>
> In our scenario, we had a lot of new/removed interfaces, and removing an
> interface (and associated subnet) triggered randomly the same behavior
> than yours.
>
> However, I was never able to create a stable reproducer. At some point,
> dnsmasq started to send bad IP addresses, but I never found something to
> trigger it. It looks random.
>
> Our current workaround : always update dnsmasq.conf to not include
> removed (or down) interfaces, and restart dnsmasq.
>
> Best regards
>
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