For us, just changing the VIF driver from LibvirtHybridOVSBridgeDriver to the generic driver fixed our issue with IPv6. We didn't need the HybridOVS driver, since we're using Neutron and Neutron's Security Group API, not Nova's.
For us, just changing the VIF driver from LibvirtHybridOV SBridgeDriver to the generic driver fixed our issue with IPv6. We didn't need the HybridOVS driver, since we're using Neutron and Neutron's Security Group API, not Nova's.