Is there any package which can realize the function of override mac address in Luci Interface of Openwrt21.02 as Openwrt18.06?

Installing and Using OpenWrt Network and Wireless Configuration
1

Or I just have to change the config file through sftp?

2

it's in the standard UI, Advanced settings for the interface.

4

No, I didn't find the option in 21.02 there as 18.06. I'm using the official image. My devices are MAC1200r V2 and Xiaomi router 4Agigabit. I met the situation on both of them.

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5

My bad, I checked a 19.07 device by mistake.

Try Configure in the devices tab in interfaces.

6

Right, MAC address settings moved into the device configuration.

7

Thanks, I've solved the problem