Transparently forcing to use Mikrotik's DNS Server, when MK acts as non-NAT router

[medi01]

/ip firewall nat
add action=redirect chain=dstnat dst-port=53 protocol=udp
add action=redirect chain=dstnat dst-port=53 protocol=tcp

No, as I said, there is no NAT, so these rules, while doing no harm, do not do anything.