[Solved] How to clone MAC Address for 21.02.0?

Installing and Using OpenWrt Network and Wireless Configuration
3 
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1504 qdisc fq_codel state UP qlen 1000
    link/ether 20:76:93:52:8f:cb brd ff:ff:ff:ff:ff:ff
    inet6 fe80::2276:93ff:fe52:8fcb/64 scope link
       valid_lft forever preferred_lft forever
3: lan4@eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue master br-lan state LOWERLAYERDOWN qlen 1000
    link/ether 20:76:93:52:8f:cb brd ff:ff:ff:ff:ff:ff
4: lan3@eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue master br-lan state LOWERLAYERDOWN qlen 1000
    link/ether 20:76:93:52:8f:cb brd ff:ff:ff:ff:ff:ff
5: lan2@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP qlen 1000
    link/ether 20:76:93:52:8f:cb brd ff:ff:ff:ff:ff:ff
6: lan1@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP qlen 1000
    link/ether 20:76:93:52:8f:cb brd ff:ff:ff:ff:ff:ff
7: wan@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc cake state UP qlen 1000
    link/ether 20:76:93:52:8f:cd brd ff:ff:ff:ff:ff:ff
    inet 10.57.128.215/20 brd 10.57.143.255 scope global wan
       valid_lft forever preferred_lft forever
    inet6 2404:3c00:2420:0:fffe:97ce:a43e:29f/128 scope global dynamic noprefixroute
       valid_lft 73352sec preferred_lft 40952sec
    inet6 fe80::2276:93ff:fe52:8fcd/64 scope link
       valid_lft forever preferred_lft forever
19: br-lan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000
    link/ether 20:76:93:52:8f:cb brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.10/24 brd 192.168.1.255 scope global br-lan
       valid_lft forever preferred_lft forever
    inet6 2404:3c00:242f:b160::1/60 scope global dynamic noprefixroute
       valid_lft 73352sec preferred_lft 40952sec
    inet6 fd85:aeb7:303::1/60 scope global noprefixroute
       valid_lft forever preferred_lft forever
    inet6 fe80::2276:93ff:fe52:8fcb/64 scope link
       valid_lft forever preferred_lft forever
20: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP qlen 1000
    link/ether 20:76:93:52:8f:ca brd ff:ff:ff:ff:ff:ff
    inet6 fe80::2276:93ff:fe52:8fca/64 scope link
       valid_lft forever preferred_lft forever
21: wlan1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-lan state UP qlen 1000
    link/ether 20:76:93:52:8f:cc brd ff:ff:ff:ff:ff:ff
    inet6 fe80::2276:93ff:fe52:8fcc/64 scope link
       valid_lft forever preferred_lft forever
28: ifb4wan: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc cake state UNKNOWN qlen 32
    link/ether 72:db:12:44:a7:00 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::70db:12ff:fe44:a700/64 scope link
       valid_lft forever preferred_lft forever