In MikroTik firewalls, rules are processed top-down, not bottom-up. This means that when a data packet arrives at the firewall, it is sequentially compared with each rule in the rules list, starting from the top.
The first set of criteria in a rule that matches the packet will determine the action to be taken on that packet (such as allow, deny, or any other action configured in the rule).
It is important to organize the rules carefully to ensure that they are processed efficiently and effectively, putting the most specific or priority rules towards the top of the list so that they are evaluated first.
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