Hi,

this is one of the most common issues users post report in this list. 
Did you try to find a solution? Do your instances in the flat network 
get an IP address? If not, try to launch instances with 
"--config-drive true". If the instances do get an IP, do your 
security-group rules allow access?


Zitat von GEORGIOS PAPATHANAIL <papathanail@uom.edu.gr>:

> I am facing the following issue with my new Openstack installation. The
> installation is a little bit weird and to elaborate more, I have a
> controller and a compute node running as VMs in XenServer.
>
> The compute node has nested virtualization enabled and uses qemu in order
> to provision VMs. I have a provider flat network that has a public range of
> IPs and VMs use this network.
>
> I am able to create instances and access them via console, but I can't ping
> them or ssh even if they have public IPs.
>
> I am not very familiar with Xen Server, is there any configuration that is
> needed (bridges, promisc mode, etc)?
>
> --
> *George Papathanail*
> *Associate Researcher*
> *Department of Applied Informatics*
> *University of Macedonia*