Re: Getting a stable MAC address for a RPI CM3+ with ue0 interface
- In reply to: Patrick M. Hausen: "Re: Getting a stable MAC address for a RPI CM3+ with ue0 interface"
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Date: Wed, 20 Sep 2023 20:02:55 UTC
And some more answers ... On the Raspberry Pi forums, I found a link to this document: https://pip.raspberrypi.com/categories/685/documents/RP-003474-WP/RP-003474-WP-1.pdf Important part: > On devices prior to the Raspberry Pi 4x the MAC address is generated from the Raspberry Pi serial number. > For example, if your Raspberry Pi serial number is 58d2ec5c, the MAC address will be generated from the > bottom six nibbles, combined with the Raspberry Pi Foundation Organizationally Unique Identifier (OUI), > which is b8:27:eb, so the final MAC address would be b8:27:eb:d2:ec:5c. > > This address is generated on startup by the firmware, and passed on to the Linux kernel for use by the Ethernet driver. So it seems like it would be on the FreeBSD kernel to read this information and pass it down to whatever driver is managing the actual device. I am suprised I am the first to notice this? Am I? Kind regards, Patrick