MAC address is changing in Raspberry Tareget

[mennaifer]

Hi,
Booting Raspberry Target with U-BOOT without ethernet connection, ethaddr is showing the mac address, this mac address is the same when I reboot.

After Starting Kernel, the command ifconfig is showing another mac address for eth0which changing for each time the Raspberry is rebooted.
Any idea what can be the issue ?
Thanks

[itaysp]

Do you use or have 'network-manager' installed?
Random Mac address is a feature of network-manager

[mennaifer]

'network-manager' is not installed. I checked the boot on the standard system (without U-BOOT) MAC address is not changing.

[itaysp]

can you check if your U-BOOT is configured with **CONFIG_NET_RANDOM_ETHADDR ** ?
I've never experienced such an issue, but from U-BOOT documentation I can see that if some conditions are met, it tries to program the address into the hardware.. (I don't know how it's possible)
https://github.com/u-boot/u-boot/blob/master/doc/README.enetaddr#L40