Open Stack

 I have also disabled completely the "firewalld" service and reverted 
 back to "iptables" service but without success.

 No matter what I do my instances cannot get a DHCP address unless the 
 firewall is "stopped".

 I 've tried to add the UDP ports 67-68 on the firewall but without 
 success as well.
 What else should I do in order to be able to have "iptables" enabled 
 for basic firewall functionality and at the same time my OpenStack 
 environment to work without a problem?

 Any ideas???

 Regards,

 G.

 On Mon, 13 Mar 2017 19:37:41 -0400, Mohammed Naser wrote:
> It causes problems for us so we uninstall and disable it on all
> compute nodes.
>
> yum -y remove firewalld
>
> Sent from my iPhone
>
>> On Mar 13, 2017, at 5:58 PM, Georgios Dimitrakakis 
>> <giorgis at acmac.uoc.gr> wrote:
>>
>> 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?
>>
>> Best,
>>
>> G.
>>
>>> 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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>>
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