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From: Mario Spinthiras on 20 Jun 2008 14:40
Greetings,

I recently setup a server which I had originally assigned a DHCP
address from the interfaces file using the line "iface eth0 inet dhcp"
.. After I had put the machine on the rack I simply changed the
addressing to static and restarted the networking. This all went well
for a while. Today the machine had lost its power feed and as a result
the machine was offline for a while.
When the machine came back up (power) , it got an address by DHCP
though the settings in the interfaces file said static with all
relevant addressing. This is not something new to me , I have dealt
with Linux machines for almost 10 years now. I just cannot seem to
understand why it did this. Checking the interfaces file again , the
only thing I had seemed to forget is the broadcast 192.168.100.0
directive which denotes the network number and nothing more.

I have played with the way ifup parses this file and cannot seem to
derive a bug of somekind. Here is a thought though. I believe the
previously retrieved address from DHCP is cached somewhere (though Ive
searched high and low for it) and when "something" triggers the
parsing error , it goes back to that DHCP previously assigned address.
Can I have your thoughts on this? Its extremely strange behavior and I
cannot understand how a broadcast directive that was missing would
cause this problem. Note that the addressing that is static and the
DHCP assigned address are both in the same subnet. Is there a force
feature of somekind that tells it to go DHCP in a certain "case" ?

Possible ifupdown bug?

--
Warm Regards,
Mario A. Spinthiras
Blog: http://www.spinthiras.net
Mail: mspinthiras(a)gmail.com
Skype: smario125


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From: x_debian-user_x on 21 Jun 2008 02:10
On Fri, Jun 20, 2008 at 09:35:39PM +0300, Mario Spinthiras wrote:

> Possible ifupdown bug?

Yes it doesn't sound right to me either. If you do not receive any
further replies then I suggest to file a bug report against ifupdown.

Otherwise post your entire /etc/network/interfaces verbatim in case
someone can spot an error.


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From: Andrei Popescu on 21 Jun 2008 17:30
On Fri, Jun 20, 2008 at 09:35:39PM +0300, Mario Spinthiras wrote:

[...]

> Possible ifupdown bug?

Do you have network-manager installed?

Regards,
Andrei
--
If you can't explain it simply, you don't understand it well enough.
(Albert Einstein)
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