coverity: IPv6ND: CID 77635 Uninitialized pointer field
coverity: IPv6NeighbourDiscovery: CID 77942 Dereference null return value
coverity: internetcloud: CID 77943 Uninitialized pointer field
coverity: IPv6InterfaceData: CID 77807 Uninitialized pointer field
coverity: IPv6Tunneling: CID 77589, 77861 Uninitialized fields