I am experiencing strange behaviour on one port of RB5009UPR. the connection is isp --- poe injektor --- eth1 When mikrotik reboots, eth1 is not connected, no lights show on the port. If I take out the cable, it helps not. I have to take out the cable from eth1, put it to eth2 this makes lights on e...

The question is very simple, how to connect mikrotik with SFP cage to ubiquiti router also with a sfp cage. The issue is such that Ubiqiti does not make duplex SFP modules and only do bidi, mikrotik does not seem to be making bidi (or my supplier does not have one). In any case, I want duplex. Is th...

Wonderful, where did you get this one? Isn't this the one they (mikrotik) originally had on their wiki?

But according to this, raw happens before nat and can be used to do blocklists. Or not?

ad A/ I probably misunderstand everything but wiki says: "Firewall RAW ... is very useful for DOS attack mitigation" and "There are two predefined chains in RAW tables: prerouting - used to process any packet entering the router " but you say RAW is any packet originated by the r...

What is the proper way to execute firewall rules before nat? I am just a beginner but from what i found, natted packets do not enter firewall at all. But what if I want to run a set of rules on ALL traffic entering IN the device through a particular eth port regardless of what happens to it. A good ...