/ip firewall filter incorporate chain=enter relationship-state=proven,linked action=accept comment="acknowledge founded,similar"; include chain=input link-point out=invalid motion=fall; increase chain=enter in-interface=ether1 protocol=icmp action=settle for comment="enable ICMP"; insert chain=enter in-interface=ether1 protocol=tcp port=8291 motion=settle for comment="enable Winbox"; ... https://winbox07257.bloguetechno.com/considerations-to-know-about-winbox-62318912