Re: [gentoo-user] Browsers cannot access WWW while ping and host utilities work as expected.

[Bruce Hill <daddy@happypenguincomputers.com>]

On Mon, Aug 05, 2013 at 04:31:44PM +0200, Marc Joliet wrote:
> Am Mon, 5 Aug 2013 07:59:09 -0500
> schrieb Bruce Hill <daddy@happypenguincomputers.com>:
> 
> > If this is "the new kernel naming scheme of NICs", why this in dmesg:
> > 
> > [    4.725902] systemd-udevd[1176]: renamed network interface wlan0 to enp0s18f2u2
> > 
> > It looks as if systemd-udev renamed the NIC to me. Can you explain?
> 
> It already has been explained in the previous NIC renaming discussion: what's
> broken is renaming a device within the kernels internal namespace, which
> contains eth*, wlan* (and maybe others). The problem is that there is a race
> condition with the kernel when renaming ethX to ethY. What you *can* do is
> rename ethX to somethingelseX or somethingelseY, because then you are not racing
> against the kernel to hand out device names.
> 
> This is explained on the website that also explains the new default renaming
> scheme used by udev. I (and IIRC others, too) already linked to it in in the old
> thread, and the relevant news item also referenced it, but here it is again:
> 
>   http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/

The fact is that udev renamed the NIC. For the average Joe with one NIC (very
large percentage of users) this is a non sequitur. For those of us with 2 or
more NICs, myself included, we have already setup our systems to use multiple
NICs for a purpose and configured the system so that nothing can/will/needs to
rename subsequent NICs.

My point is don't say "the new kernel naming scheme of NICs", say "the new
systemd naming scheme of NICs".
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