Re: Why eth1 and not eth0 ?

[Dan Williams <dcbw redhat com>]

On Tue, 2007-01-23 at 20:38 -0400, Derek Broughton wrote:
> On Tuesday 23 January 2007 19:53, Timothy Murphy wrote:
> > On Tuesday 23 January 2007 23:31, Derek Broughton wrote:
> > > > As a matter of interest, why has my NetworkManager
> > > > started using eth1 in place of eth0, which it used to use?
> > >
> > > Probably you are using a different card...
> >
> > Same card. Sorry
> >
> > > > Is there anywhere I can specify which device I want to use?
> > >
> > > If so, check /etc/iftab
> >
> > [tim martha ~]$ less /etc/iftab
> > /etc/iftab: No such file or directory
> 
> In which case, investigate whether iftab is available under your distro - it's 
> used in Ubuntu to tie a MAC address to a specific interface. As Dan said, 
> udev can assign the interface numbers apparently randomly (my eth0 & eth1 
> frequently exchange positions, but my network configuration is set up so as 
> not to care).

And that's the point; NM means you don't _need_ to care what the device
name is.  Really, you shouldn't ever need to look at it, nor care what
it's value is.  I don't tie my devices to MAC addresses, and they switch
around every now and again, but it doesn't matter to me as they always
do the right thing under NetworkManager.

Dan