Re: [Bluez-devel] New HCI-USB device, no MAC?

[Nils Faerber <nils.faerber@kernelconcepts.de>]

Marcel Holtmann schrieb:
> Hi Nils,
Hi!

>> Then I created a small shell script which sets a "more correct" address
>> than the default 11:11:11:11:11:11. I assume in this script that an
>> ethernet device is present in the system as eth0 and use its MAC for the
>> Bluetooth dongle too.
>>
>> I did this for two reasons:
>> 1. On the same machine I always want to have the same BDADDR, so random
>> was no choice.
>> 2. The ethernet addresses also have to follow the same rules as
>> Bluetooth MAC addresses, i.e. they have to be unique. So the probability
>> of a collision is very low.
> 
> and now PAN will stop working, because the eth0 and bnep0 will have the
> same MAC address. Not a good idea.

Oh... I was not aware of this potential problem since I assumed that the
different network technologies do not share the same MAC space.
OK.

Proposals?
I could probably increment/decrement the MSB or LSB of the ethernet MAC?

> Regards
> Marcel
Cheers
  nils faerber

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