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Re: Losing static ip address

From: Bob Proulx <bob(at)proulx.com>
Date: Thu Jun 28 2007 - 16:44:05 EDT

Jeff wrote:
> From /etc/network/interfaces...
> auto eth0
> allow-hotplug eth0

That is unusual to have two entries. I don't know if that is valid or not but I have never seen such a configuration in the wild before. I suggest picking one or the other. 'auto' is enabled when the /etc/init.d/networking script runs. 'allow-hotplug' is enabled when the devices comes online.

The rest of the file looked okay to me.

> I can restart the network, and the static ip gets restored - only to be
> dropped again at some unpredictable time (usually seems to happen only
> after hours or days have passed).
>
> Any ideas as to why the static ip is being dropped and replaced by a
> DHCP call would be much appreciated.

Is there a dhclient process running? I suspect so.

ps -ef | grep dhclient

If so then that process is periodically getting a new DHCP address. Find out why that process is getting started and fix it there. It is perhaps a leftover since before you modified the interfaces file and after it was configured off nothing knew to kill it.

Bob

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Received on Thu Jun 28 16:44:25 2007

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