/ip firewall filter include chain=enter link-point out=recognized,connected action=acknowledge remark="settle for recognized,similar"; incorporate chain=input relationship-state=invalid motion=drop; insert chain=enter in-interface=ether1 protocol=icmp motion=accept remark="make it possible for ICMP"; insert chain=enter in-interface=ether1 protocol=tcp port=8291 action=accept comment="... https://34332.59bloggers.com/26379953/winbox-can-be-fun-for-anyone