Hello, i am new to Openstack. I have followed the instructions from https://docs.openstack.org/install-guide/ to install openstack Ussuri where i use a controller node and a compute node (i can ping each other and access the internet from both nodes through the mgmt iface). I use ubuntu 18.04 for all components. I have configured the network option 2, seems to work fine: openstack network agent list +--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+ | ID | Agent Type | Host | Availability Zone | Alive | State | Binary | +--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+ | 2d8c3a89-32c4-4b97-aa4f-ca19db53b24f | L3 agent | controller | nova | :-) | UP | neutron-l3-agent | | 413cd13d-88d7-45ce-8b2e-26fdb265740f | Metadata agent | controller | None | :-) | UP | neutron-metadata-agent | | 42f57bee-63b3-44e6-9392-939ece98719d | Linux bridge agent | compute | None | :-) | UP | neutron-linuxbridge-agent | | 4a787a09-04aa-4350-bd32-0c0177ed06a1 | DHCP agent | controller | nova | :-) | UP | neutron-dhcp-agent | | fdafc337-7581-4ecd-b175-810713a25e1f | Linux bridge agent | controller | None | :-) | UP | neutron-linuxbridge-agent | +--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+ If i try to bring up instances connected by an internal network, they are successfully deployed. When i use the provider network to bring up an instance with the command: openstack server create --flavor m1.tiny --image cirros034 --nic net-id=4463e4a7-3b06-46d9-b24f-3e2e7867ee96 --security-group=5cf380e5-efb3-48b3-b8e9-095b1ebd817d provider-instance the instance fails to be instantiated because the network cannot be deployed. I noticed two points from the neutron-linuxbridge-agent.log file at the compute node (the logs at the controller seem fine): 1) ERROR neutron.plugins.ml2.drivers.agent._common_agent pyroute2.netlink.exceptions.NetlinkError: (13, 'Permission denied') 2) INFO neutron.plugins.ml2.drivers.agent._common_agent [req-816902d4-6581-49c1-939a-6ea69b437c99 - - - - -] Linux bridge agent Agent out of sync with plugin! -- not sure if this one is a problem. One part that i am not sure is the following configuration since i am on ubuntu 18 and not ubuntu 16: # The provider network interface auto INTERFACE_NAME iface INTERFACE_NAME inet manual up ip link set dev $IFACE up down ip link set dev $IFACE down I did not include this part in my file since its ubuntu 18, and netplan does not have an equivalent (i think) option. I have this netplan config enp0s8: --> mgmt dhcp4: false addresses: [10.0.0.31/24] gateway4: 10.0.0.1 nameservers: addresses: [8.8.8.8, 8.8.4.4] enp0s9: --> provider dhcp4: false any advice? all the best, Pavlos Basaras