Для решения твоей задачи нужно сделать так:
/ip firewall nat
add action=masquerade chain=srcnat comment="Map Lan to Lan" dst-address=\
192.168.24.18 dst-port=80 protocol=tcp src-address=192.168.22.0/16
add action=dst-nat chain=dstnat comment="Map Lan to Lan" dst-address=\
69.69.69.69 dst-port=80 protocol=tcp src-address=192.168.22.0/16 \
to-addresses=192.168.24.18
add action=dst-nat chain=dstnat comment=\
"Map 80" dst-address=69.69.69.69 dst-port=80 \
protocol=tcp to-addresses=192.168.24.18 to-ports=80
