I include it because all of the packets seem to have the same problem (the router attempts a ping to my main server (ending in octet ".10"), which it claims the host is unreachable. Not sure why that is happening.
I think you're misunderstanding the ICMP 'Destination
unreachable' packet - it's not that your router attempts to
'ping' the server, it's the router informing the server that it's
intended destination is unreachable.
Since that ICMP packet is always preceded by a DNS query directed
to either 1.1.1.1 or 8.8.8.8, it might imply that either your
router or something further along (i.e. your ISP) is not allowing
the DNS query packets to pass.
Since Bind v9.18 has been in use for quite a while and is still
widely used today (without such major issues), I very much doubt
your issues are caused by Bind.
Danilo
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