Re: udev renames ethernet interfaces?

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Author: Alex Dean
Date:  
To: Main PLUG discussion list
Subject: Re: udev renames ethernet interfaces?

On Oct 4, 2009, at 5:56 AM, Dazed_75 wrote:

>
> On Sat, Oct 3, 2009 at 2:36 PM, Alex Dean <> 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.


Heh. I'm jet-lagged and reading email at 4am. I probably should be
just reading rather than responding. :)
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