By default, MAC server runs on all interfaces, so We're going to disable the default "all" entry and insert an area interface to disallow MAC connectivity from your WAN port. MAC Telnet Server function allows you to apply restrictions into the interface "checklist". WinBox is delivered underneath a freeware license https://marcoqdmwi.topbloghub.com/32882530/indicators-on-winbox-you-should-know