Open Stack

In a enfort to improve/verify the Openstack Documentation with regards to RHEL and Fedora, I've been attempting to follow the basic install guides.  I've managed to create a working installation and set of instructions.  However, to do so I needed to disable the Neutron IPTables firewall, as it was blocking non-VM traffic.  Namely, it was blocking the GRE packets being used by Neutron.  Did I miss something, or is this a bug?

Best Regards,
Solly Ross