It was discovered that the nova.conf configuration generated by packstack did not correctly set the libvirt_vif_driver correctly if the OVS monolithic plugin was not used. This could result in deployments defaulting to having the firewall disabled unless the nova configuration was manually modified after packstack was run. Acknowledgements: This issue was discovered by Yair Fried of Red Hat.
IssueDescription: It was discovered that the nova.conf configuration generated by PackStack did not correctly set the libvirt_vif_driver configuration option if the Open vSwitch (OVS) monolithic plug-in was not used. This could result in deployments defaulting to having the firewall disabled unless the nova configuration was manually modified after PackStack was started.
This issue has been addressed in the following products: OpenStack 4 for RHEL 6 Via RHSA-2014:1691 https://rhn.redhat.com/errata/RHSA-2014-1691.html