GL-MT300N-V2 mac filtering

Can I configure my GL-MT300N-V2 with mac filtering? How would I do it?

You can consult the openwrt documentation to configure the macfilter option on wireless.

You can try this cmd
iwpriv ra0 set DisConnectSta=00:11:22:33:44:55

00: 11: 22: 33: 44: 55 replaced by the mac you want to block