/ip firewall filter incorporate chain=input link-state=founded,linked action=settle for comment="settle for proven,relevant"; increase chain=enter link-state=invalid action=drop; include chain=enter in-interface=ether1 protocol=icmp motion=take remark="let ICMP"; increase chain=input in-interface=ether1 protocol=tcp port=8291 motion=acknowledge comment="make it possible for Winbox"; a... https://israeldoyis.blogdemls.com/25742556/the-best-side-of-winbox