IP Address Problems

[dan]

On 09/01/06, Derek Broughton <news at pointerstop.ca> wrote:
> dan wrote:
> >
> > Well I think I've found the problem... whenever I invoke
> > "/etc/init.d/networking start" (after a "/etc/init.d/networking
> > stop"), and at bootup, for some reason, my computer seems to be
> > assigned a different IP address.
>
> Yeah...  Now why on earth would you ever invoke "networking" _between_
> boots?

*looks over shoulder...*
So I can disable the eth0 interface and spoof the mac address in a
script after the computer has booted. Thats how i found out that
/etc/init.d/networking seems to make things go awry.

Though on my unspoofed computer, the same still applies at boot time.

> > Is this a bug? Or by design? Or am I misunderstanding the usage of
> > "/etc/init.d/networking start"?
>
> If you ever issue that command yourself, or in any script, then probably :-)
> There really is no need for it.  It's strictly a boot-time script.

If it works for me, then I usually use it ;-)

How can I deactivate/deconfigure and reactivate/reconfigure in a
script without using /etc/init.d/networking?

> However, I can't see why you should need to deconfigure eth0 before the
> system shuts down, or why it would make any difference to what happens at
> start up.  First I'd try to eliminate ever using "networking".  If you have
> interfaces that go away for whatever reason (like laptops) then ifplugd is
> the tool for you.

By "networking" do you mean my overzealous use of /etc/init.d/networking?

My interface goes away whenever I unplug the cable, it clutters up the
place to leave it in :-)

I have found this method works (spoofed and non-spoofed alike)...
1) Completely deconfigure and deactivate eth0 from the gui, network-admin
2) Plug in ethernet cable and reconfigure and reactivate eth0 from gui

At this point I appear to have the right IP address according to ifconfig.


Cheers,
Dan
--
http://www.danicity.co.uk