микротом
Заранее извиняюсь за портянку )))
/ip firewall layer7-protocol add name=domain.local regexp=domain.local
/ip firewall mangle add chain=prerouting dst-address=192.168.15.1 layer7-protocol=domain.local action=mark-connection new-connection-mark=domain.local-fwd protocol=tcp dst-port=53
/ip firewall mangle add chain=prerouting dst-address=192.168.15.1 layer7-protocol=domain.local action=mark-connection new-connection-mark=domain.local-fwd protocol=udp dst-port=53
/ip firewall nat add action=dst-nat chain=dstnat connection-mark=domain.local-fwd to-addresses=192.168.55.2
/ip firewall nat add action=masquerade chain=srcnat connection-mark=domain.local-fwd