[openstack-community] OpenStack instances can't access LAN or internet when using LXD

Hi, I have installed OpenStack Mitaka (all in one) in ubuntu 16.04. I'm using LXD as a hypervisor using nova-lxd. Everything is working fine, I can login to dashboard, launch instances successfully. I assigned floating IPs to them too and 'nova list' shows they are assigned to the instances. 'lxc list' shows only private ip assigned. The problem is I can't access internet or even the LAN while inside that instance. Any help? Thanks