I just want to note that the new version of dnsmasq contains an error that causes much of errors in the log file:
Jan 23 11:56:47 turris dnsmasq[6233]: failed to send packet: Network unreachable
Jan 23 11:56:47 turris dnsmasq[6233]: failed to send packet: Network unreachable
Jan 23 11:56:48 turris dnsmasq[6233]: failed to send packet: Network unreachable
This seems to be fixed in version v.2.84test3
as reported in: