Change MAC Adresse on RPI-B

[diffusae]

Hello!

Does anyboy know how to change the MAC address on a Raspberry Pi with
FreeBSD 11.0-STABLE?

I've tried it in /etc/start_if.ue0 this way:

ifconfig ue0 down delete
ifconfig ue0 promisc
ifconfig ue0 ether 00:FF:CC:00:11:11

But it's only possible to do it in promicous mode of the device.
Without there is no more network connection after applying these settings.

It could be properly a bug due to the USB network driver.

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=168268

Maybe there is another way, how with the Linux kernel command line or an
config option, like this: smsc95xx.macaddr=00:FF:CC:00:11:11.

Regards,