/ip firewall filter increase chain=input relationship-point out=recognized,associated motion=settle for comment="acknowledge set up,related"; add chain=input connection-point out=invalid motion=drop; insert chain=input in-interface=ether1 protocol=icmp motion=take remark="allow for ICMP"; increase chain=input in-interface=ether1 protocol=tcp port=8291 action=acknowledge remark="make i... https://winbox58035.atualblog.com/33273255/top-guidelines-of-winbox