NOT KNOWN DETAILS ABOUT WINBOX

/ip firewall filter insert chain=enter relationship-condition=recognized,similar motion=acknowledge remark="settle for set up,relevant"; insert chain=input connection-state=invalid motion=drop; add chain=enter in-interface=ether1 protocol=icmp motion=acknowledge comment="permit ICMP"; include chain=enter in-interface=ether1 protocol=tcp port=8291 m