[Openstack] DHCP Request Failed on Ocata

Georgios Dimitrakakis giorgis at acmac.uoc.gr
Mon Mar 13 21:58:11 UTC 2017

 My problem may be due to the "firewalld" service running....

 Has anyone configured OpenStack on CentOS with Firewalld or do you 
 suggest to disable it?



 On Sat, 11 Mar 2017 21:28:51 +0200, Georgios Dimitrakakis wrote:
> Hello!
> I am trying to setup a new Ocata installation following the official
> guide but my instances fail to get a DHCP address.
> I am using two physical nodes (1x controller and 1x compute) each one
> with two network interfaces.
> Compute node can reach the Controller node via the first interface
> and vice versa.
> As recommended by the manual the second interface is unnumbered.
> When I launch an instance I can see using "tcpdump" that the DHCP
> request reaches the second (the unnumbered) interface
> of the compute node but never reaches any other interface either on
> compute or controller node.
> Therefore I am wondering how should the instance get an IP address?
> What is the correct path that is followed?
> I have tried that using both provider and self-service networks and
> the result is always the same.
> Looking forward for any directions, recommendations etc.
> All the best,
> G.
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