Re: Strange work of eth0.

["Todd A. Jacobs" <nospam@codegnome.org>]

On Tue, Jan 19, 2010 at 12:41:08AM +0700, Sthu Deus wrote:

> $ sudo /sbin/ifdown eth0
> SIOCDELRT: No such process

This generally happens when ifupdown wasn't called to enable the
interface. So, if you configured the interface manually, you might get
that sort of error because ifdown doesn't think it's a managed
interface.

There might be other reasons, too, but that's what I see most often on
my laptop. The easy fix is:

    sudo ifconfig eth0 down

which will take the interface down directly, rather than calling
ifupdown.

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