Hi all,
yesterday, using neighbors discovery in winbox, i noticed that two rb493G routerboards were using the same Mac Address on eth1.
Why ?
How can i force a routerboard to use its real mac address on ETH1 interface ?
Thank you.
Did you tried /interface ethernet reset-mac-address eth1 ?
This often happens when people copy configuration from one board to another using backup/restore instead of export/import.
Yes, and the strange thing is that it worked for a routerboard and it didn’t for another rb, same model and same firmware…
The Mac address used on eth1 interface is not related with the vendor macaddress.. it start with E4:8D:8C instead of 4c:5E:0c that is the mikrotik mac prefix..
I also noticed that this mac address correspond to BRIDGE interface mac addr…
Yes, actually i did a restore from a backup of another RB, but this isn’t the eth1 mac address of the cloned router, but an internal mac address, as i mentioned in the previous post, is the same mac of the internal bridge.
Reset router with no defaults and make the config from scratch. Do not transfer backups between the devices or different versions within the same device.