[Unbound-users] Unbound and ICMP

[gauthierl]

Hello,

Yesterday, I noticed for the first time that my Unbound server has ping a
lot of DNS servers (something like 4000 in 30 minutes).

I think it's the Unbound process that is responsible of all the traffic but
I prefer be sure and also I'm curious about the purpose of this feature.

Can anyone have information about it ?

Thanks in advance,
Mathieu