Scenario
You have a customer with a Mikrotik router that needs a port forwarded to an internal IP address. In our case, a customer has a camera that communicates on port 80 with a static IP add of 192.168.21.49 on their internal LAN.
Solution
add action=dst-nat chain=dstnat dst-port=80 protocol=tcp to-addresses=192.168.21.49 to-ports=80
