/ip firewall nat add chain=dstnat dst-address=11.11.11.1 action=dst-nat to-addresses=192.168.2.1
/ip firewall nat add chain=srcnat src-address=192.168.2.1 action=src-nat to-addresses=11.11.11.1
This is a good link, but don't forget to do an accept rule for the traffic in the filter section:You can check this link.
ip firewall filter add connection-nat-state=dstnat action=accept