[Openstack] A strange solution for instances not getting their ip

Akilesh K akilesh1597 at gmail.com
Wed Sep 17 15:50:33 UTC 2014


I have faced stranger stuff with cirros. I would see dhcp lease messages
using tcpdump exactly on the instances port but still cirros keeps sending
discover messages.
On Sep 17, 2014 8:24 PM, "Claudio Pupparo" <claudio.pupparo at gmail.com>
wrote:

> Hi,
>
> I have the common issue of instances not getting their ip.
> When I start a cirros instance, the output looks like this:
>
> udhcpc (v1.20.1) started
> Sending discover...
> Sending discover...
> Sending discover...
> No lease, failing
>
> I've found that during the boot process (while the instance is trying to
> get an ip), if I remove and immediately recreate in the router the
> interface to the subnet in which the instance is located, the instance
> succeds in getting its ip!
>
> I've tested many times, and this method keeps working.
> Anyone has a hint about this strange behaviour?
>
> Thanks,
>
> Claudio
>
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