Changing the MAC address of a VLAN interface in Mikrotik RouterOS
Do you want to change the MAC address of a VLAN interface in Mikrotik RouterOS? Are you baffled by the fact that although the VLAN interface has a MAC address property inherited from the parent Ethernet interface, it isn’t editable?
Well, you’re in luck, it isn’t actually impossible to give your VLAN interface a different MAC address to it’s parent interface, you just have to go about it in a somewhat roundabout way by making what is effectively a virtual Ethernet interface and bridging it to the VLAN interface. You then add your layer 3 IP functions to the bridge interface instead of to the VLAN interface.
First, you need to create a bridge and give it a name, then add the VLAN interface who’s MAC address you want to change to the bridge as a port. Finally, set the “auto-mac” property on the bridge to “no” and then change “admin-mac” property for the bridge to be whatever you want your new MAC address to be
/interface bridge add name=newmac disabled=no auto-mac=no admin-mac=”00:00:00:00:00:00″
/interface bridge port add bridge=newmac interface=vlan1
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instead mikrotik (which is not bad) try pfsense… only my recomendation… nice blog