Here's an example configuration for your /etc/network/interfaces using a simple ovsbr0 bridge for eth0, with dhcp for ipv4 and ipv6. This was taken from https://bugs.debian.org/860786. allow-ovs ovsbr0 iface ovsbr0 inet dhcp ovs_type OVSBridge ovs_ports eth0 allow-ovs ovsbr0 iface ovsbr0 inet6 dhcp ovs_type OVSBridge ovs_ports eth0 allow-ovsbr0 eth0 iface eth0 inet manual ovs_bridge ovsbr0 ovs_type OVSPort However, this didn't work for me. Instead, this worked: allow-ovs br0 iface br0 inet dhcp ovs_type OVSBridge ovs_port enp0s3 auto enp0s3 iface enp0s3 inet manual ovs_bridge br0 ovs_type OVSPort up ip address add 0/0 dev enp0s3 up ip link set enp0s3 up up dhclient br0 down ip link set enp0s3 down -- Thomas Goirand Mon, 29 Jan 2018 11:33:40 +0100