RiotBoard : Mac Address

Android or Linux ?

Essentially, the fuse block in the SoC that would hold the mac address is left un-programmed. This should cause the kernel driver to pick a random mac address on every boot. That does appear to happen on the 3.15-rc* kernels I'm using.

Unfortunately distros try to be smart and force things, or save and restore the settings somewhere.  In Debian/Ubuntu you should be able to do something like adding a line similar to

hwaddress ether 01:02:03:04:05:06

into /etc/network/interfaces at the appropriate place. Just pick a different address on each board.

I don't know much about how android might do this, I'm not really an android person, but there should be a way.

Note that simply giving each board a different static IP address won't work as long as they're on the same network, having duplicate mac address will still cause you problems in that scenario.

Hello

Sorry for the confusion

I am using Android  distro.

Any body could help me ?

Xavier

I think I´ve seen something to spoof the Mac within terminal with help of busybox.

Inside the terminal when busybox is installed you can change it with:

ifconfig eth0 hw ether 00:11:22:33:44:55

But you need to have root for this. And I don´t know if or how this is possible at the moment.
As far as I know no one got root working by now. Maybe you have to ask a bit around. Maybe someone got it to work.

I´m using the riotboard with Linux. So I only can share my knowledge with my rooted Android phone.

Yes, I am facing the root problem on RiOtBoard on Android

How to install busybox on RiotBoard

Xavier

Ok, so for the don't-have-a-clue-about-android person here, please explain where you see your mac address in the android gui ?

There's a possible way to set unique address that works elsewhere, but I don't seem to be able to get it to work with android..

Connect a serial console, and stop u-boot at the prompt. Type the following two lines:

setenv ethaddr 00:11:22:33:44:55

saveenv

then power cycle.

Essentially this is supposed to cause u-boot to set the mac which is then picked up by the kernel later.  This works elsewhere - on Sabre-Lite and a much newer version of u-boot.

I only have android on one of my boards, but it always seems to get a mac of 00:00:00:00:00:00 as seen in the initial u-boot, then when android loads it gets 1E:ED:19:27:1A:B3.  Are you all getting that same mac address in android ?

Ok, so for the don't-have-a-clue-about-android person here, please explain where you see your mac address in the android gui ?

There's a possible way to set unique address that works elsewhere, but I don't seem to be able to get it to work with android..

Connect a serial console, and stop u-boot at the prompt. Type the following two lines:

setenv ethaddr 00:11:22:33:44:55

saveenv

then power cycle.

Essentially this is supposed to cause u-boot to set the mac which is then picked up by the kernel later.  This works elsewhere - on Sabre-Lite and a much newer version of u-boot.

I only have android on one of my boards, but it always seems to get a mac of 00:00:00:00:00:00 as seen in the initial u-boot, then when android loads it gets 1E:ED:19:27:1A:B3.  Are you all getting that same mac address in android ?