ath79: mikrotik mac issue

Koen Vandeputte koen.vandeputte at
Tue Apr 20 09:45:36 BST 2021

Hi Roger,

An important detail:
I'm testing using kernel 5.10 :-)



On 18.04.21 19:00, Roger Pueyo Centelles wrote:
> Hi,
> Sorry, no clue. I am getting MAC addresses correctly assigned on a
> MikroTik RB922UAGS-5HPacD running OpenWrt SNAPSHOT, r16574-f7e00d81bc.
> As expected, random MAC addresses appear for both eth0 and eth1 on a
> fresh boot after flashing with "sysupgrade -v -n. At around ~40 seconds
> uptime, the network is activated with the correct MAC addresses enabled
> (same as in /etc/config/network):
> eth1: /sys/firmware/mikrotik/hard_config/mac_base
> eth0: /sys/firmware/mikrotik/hard_config/mac_base+1
> wlan0: /sys/firmware/mikrotik/hard_config/mac_base+2
> The behaviour is correct on rebooting or reflashing.
> Roger
> El 16/4/21 a les 17:04, Koen Vandeputte ha escrit:
>> Hi all,
>> I found another interesting issue testing on a rb922
>> The board gets a random mac on each boot.
>> This is normal and should be automatically corrected by 02_network
>> afterwards when hard_config is available, but it seems it's not
>> getting applied correctly.
>> Debugging the 02_network script shows that the actual value is
>> properly fetched from hard_config, but it's not getting applied for
>> some reason ..
>> /etc/board.json shows the correct ones, but the interfaces still carry
>> the random MAC.
>> Judging by the flow in the script, I guess this issue will be present
>> on all ath79 Mikrotik targets.
>> Anyone got a clue?
>> Regards,
>> Koen

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