On Thu, 17 May 2007, Erik de Castro Lopo wrote: > I have a motherboard with two identical (apart from the MAC addresses > of course) ethernet interfaces. The two MAC addresses are > consectutively numbered; XX:XX:XX:XX:XX:34 and XX:XX:XX:XX:XX:35. > > On most reboots, the interface with the 34 MAC address becomes eth2 > and the other becomes eth3, but very occasionally they get swapped > around which rather screws things up. > > Is there any way to lock a MAC address to an interface name? Hi Eric, You probably need to write a udev rule to specify the kernel interface. Don't know how to write a udev rule? Have a look here: http://reactivated.net/writing_udev_rules.html
Rule would look like...
SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="XX:XX:XX:XX:XX:34",
NAME="eth2"
SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="XX:XX:XX:XX:XX:35",
NAME="eth3"
I have gentoo and udev-104-r12 does this automatically, so if a device
is used for the first time, the udev rules get created automatically
and the so the interface name for the device doesn't change across
reboots. I've just copied the rules generated.
>
> Cheers,
> Erik
Regards
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