Hi, I am running Ubuntu Server 20.04 LTS on Virtualbox. I installed OpenStack (Xena release) through Devstack. Here is the content of my /opt/stack/devstack/local.conf file : [[local|localrc]] ADMIN_PASSWORD=secret DATABASE_PASSWORD=$ADMIN_PASSWORD RABBIT_PASSWORD=$ADMIN_PASSWORD SERVICE_PASSWORD=$ADMIN_PASSWORD HOST_IP=10.0.2.15 I created an instance through Horizon. The security group contains the 2 rules needed (one to be able to ping and one to be able to ssh the instance). I also allocated and associated a floating IP address. And a ssh key pair. Here is the configuration : openstack server list ---------------------------------+--------------------------+---------+ | ID | Name | Status | Networks | Image | Flavor | ---------------------------------+--------------------------+---------+ | f5f0fdd5-298b-4fa3-9ee9-e6e4288f4327 | InstanceJanvier | ACTIVE | shared=172.24.4.133, 192.168.233.165 | cirros-0.5.2-x86_64-disk | m1.nano | ------------------------------------------------------+ openstack network list : ------------------------------------------------------+ | ID | Name | Subnets | ------------------------------------------------------+ | 96a04799-7fc7-4525-b05c-ad57261aed38 | public | 07ce42db-6f3f-4135-ace7-2fc104ea62a0, 6dba13fc-b10c-48b1-b1b4-e1f1afe25b53 | | c42638dc-fa56-4644-ad34-295fce4811d2 | shared | a4e2d8cc-02b2-42e2-a525-e0eebbb08980 | | ffb8a527-266e-4e96-ad60-f7e9aba8f0c1 | private | 42e36677-cf3c-4df4-88a1-8cf79b9d6060, e507e6dd-132a-4249-96b1-83761562dd73 | ------------------------------------------------------+ openstack router list : +--------------------------------------+----------------+--------+------ | ID | Name | Status | State | Project | +--------------------------------------+----------------+--------+------ | b9a15051-a532-4c93-95ad-53c057720c62 | Virtual_router | ACTIVE | UP | 6556c02dd88f4c45b535c2dbb8ba1a04 | +--------------------------------------+----------------+--------+------ I cannot ping/ssh neither the fixed IP address or the floating IP address : ping -c 3 172.24.4.133 PING 172.24.4.133 (172.24.4.133) 56(84) bytes of data. --- 172.24.4.133 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2035ms ping -c 3 192.168.233.165 PING 192.168.233.165 (192.168.233.165) 56(84) bytes of data. --- 192.168.233.165 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2035ms Maybe that has something to do with the network namespaces configuration on Ubuntu. Does anyone know what could go wrong or what is missing ? Thanks for helping.