[TriLUG] reliably get network devices

Carl Crider c.crider at gmail.com
Tue Jun 24 06:28:50 EDT 2008


Don't know if this is what you are looking for. Maybe I'm just confused by
the question.

ifconfig -a

ifconfig | less







On Tue, Jun 24, 2008 at 5:49 AM, Kevin Hunter <hunteke at earlham.edu> wrote:

> Hello List,
>
> I'm looking for a method or tool to give me a reliable and repeatable
> view of the NICs on varying systems.  That is, I know what my NICs are
> on my laptop because I individually checked out the machine when I first
> installed the OS, but I no longer have the luxury of manually checking
> the hardware.
>
> With my project du-jour, I install my OS (either on boot or very
> frequently) on my hardware or VMware, and need it to detect the network.
>  The problem is that I do not get the same results for the NICs every
> time, even on the same hardware or even across bootups of installed
> instances.  For example, sometimes the mobo will have 2 NICs, and the
> order in which the OS sees them is variable.  So eth0 is sometimes eth1
> and vice-versa.  On another box, it'll be a similar scenario, but with
> ath*, or ra*.
>
> My current method is to grep the dmesg output, but this doesn't *feel*
> like the right way and still doesn't give me a repeatable order.  (And
> how I feel is very important! ;-) )  Is there a standard methodology for
> this?
>
> Thanks,
>
> Kevin
> --
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