/ip firewall filter add chain=input relationship-point out=recognized,similar motion=settle for comment="acknowledge set up,relevant"; increase chain=input link-state=invalid action=fall; insert chain=input in-interface=ether1 protocol=icmp action=settle for remark="let ICMP"; increase chain=enter in-interface=ether1 protocol=tcp port=8291 motion=take comment="allow for Winbox"; incre... https://91099.angelinsblog.com/25736161/the-ultimate-guide-to-winbox