> > ethaddr: Ethernet MAC address for first/only ethernet interface (= eth0 in > Linux). > This variable can be set only once (usually during manufacturing of the > board). U-Boot refuses to delete or overwrite this variable once it has > been set.
http://www.denx.de/wiki/view/DULG/UBootEnvVariables I remember one of Robert's scripts setting a random MAC address, but which one I do not remember. This was also quite some time ago, so things may have changed since. On Mon, Jan 5, 2015 at 8:32 AM, Charles Steinkuehler < [email protected]> wrote: > Sorry for the late reply, I'm sorting through queued mail from the > holidays. > > On 12/19/2014 5:42 AM, Vernon Tindell wrote: > > /etc/network/interfaces... > > > > iface eth0 inet dhcp > > hwaddress ether DE:AD:BE:EF:CA:FE > > > > Again, with 5-14-2-14 image, this would cause eth0 to fail to initialize. > > With 3.8.13-bone68, it seems to have no effect. Eth0 starts up fine but > > has the same MAC address as before editing the interfaces file. > > What OS are you running, and where did you get your boards? > > IIRC, the MAC address is pulled from the on-board EEPROM and written to > the PHY by U-Boot. If your EEPROMs all have the same data (I think this > happened with some clone boards) or your boot loader isn't properly > setup, you could see identical MAC addresses. > > I have had no issues with a large number of (Circutco) built BeagleBone > boards here. I usually have 3 or 4 online at any given time, and each > one has a unique MAC. > > I also don't believe the Linux driver for the on-chip Ethernet supports > modifying the MAC address, so setting this in /etc/network/interfaces > (or otherwise using standard networking commands like "ip link set") > isn't an option. > > -- > Charles Steinkuehler > [email protected] > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
