gateway mac address

I am preconfiguring a Mikrotik and my ISP requires me to register my router’s Mac address and will not pass traffic if they detect something else. If I set the gateway’s (ether1) mac to match old router’s mac they should accept this right?

I have the following export under /interface ethernet:

set 0 mac-address=“old router’s mac address” name=ether1-gateway

thank you.

Yes. Is right!

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