Open Stack

Hi,

I'm running Grizzly in two nodes. One controller and one compute node.

I tested Cirros and Ubuntu instance. I can ping them with assigned
public IP and SSH them. But for the CentOS cloud image downloaded from
http://wiki.centos.org/Cloud/OpenNebula I failed.

After assign public IP to CentOS instance it can't be reached(ping or
ssh) by neither of private or public IP.

After ssh in the Ubuntu/Cirros instance and try to ping the CentOS
instance it still failed. But Ubuntu and Cirros instance succeeded to
ping each other after ssh. And all these instances use the same security
group.

I found below know issue in OpenNubula:
http://wiki.centos.org/Cloud/OpenNebula
--------------------------------------------------------------------
Known Issues

Images are built with firewall turned on, with only ssh allowed to
connected in. On a Cloud instance where the access is controlled via
security and network policy, this might not be an ideal state.
--------------------------------------------------------------------

But now it's not only for ssh but also for ping. Is CentOS cloud image
configured by reject all network access in its firewall rule? If so
since it has no default root password how can we log in them?

Thanks.