On Fri, 14 May 2004, Brian Brazil wrote:
> On Fri, May 14, 2004 at 04:30:44PM +0100, Niall O Broin wrote:
> > I have a Linux router with three NICs, which works fine. I now want to build
> > standby hardware for that so that if it fails anyone can just switch to the
> > standby box by plugging it in, mains and networks, and turning it on.
> > However, if I have three identical NICs in a box how do I know which will
> > become eth0, eth1 and eth2 at boot time?
>> Interrogate the MAC address. Debian comes with a relavent script. Think
> its in ifupdown...
Failing that, unless the driver or the motherboard is weird, it should
be PCI slot order (assuming they're PCI devices)
(The kernel provides a standard way for drivers to walk find relevant
devices - it walks them along each bus in turn looking for the magic
device signature.)
Ronan
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