On Sat, Oct 3, 2009 at 2:36 PM, Alex Dean <alex@crackpot.org> wrote:

On Oct 4, 2009, at 3:28 AM, Dazed_75 wrote:

ubuntu 9.04 from /var/log/messages

ifserver kernel: [ 9.611230] udev: renamed network interface eth0 to eth1

BTW, this is the ethernet port on the motherboard. I assume that it was originally known as eth0. But when a PCI ethernet card was added, I was surprised to see it listed as eth0 and the motherboard as eth1. Apparently now that the machine is back to only having the MB ethernet, udev is still wanting to call it eth1. Probably a better idea than trying to find and fix all references to eth0 and eth1.

I'm not sure if you're using NetworkManager or configuring your own interfaces. In NetworkManager, I see how to look up which MAC address is associated with which ethernet device (eth0, eth1, etc), but I don't see any way to set these associations.

If you're doing your configuration via /etc/network/interfaces, you can add a 'hwaddress' stanza in the configuration for either a 'static' or 'dhcp' interface. I think you should be able to use that to control which device becomes eth0, eth1, etc.

alex

Sorry Alex,

This was something seen while investigating a different problem and searching log files for clues. That discussion was in another thread so you never saw it. NetworkManager is running and I am not touching /etc/network/interfaces. My question also had nothing to do with the other discussion, it was just something I was surprised to see.