I just tested netplan 0.39 on a 18.04 VM and it does not fix the problem, the bridge is still DOWN upon creation :-(
netplan ---------------------------- network: version: 2 bridges: br0: dhcp4: false addresses: - 10.10.10.254/24 parameters: stp: false forward-delay: 0 ---------------------------- which generates (netplan generate) the following files in /run/systemd/network/ 10-netplan-br0.netdev ---------------------------- [NetDev] Name=br0 Kind=bridge [Bridge] ForwardDelaySec=0 STP=false ---------------------------- 10-netplan-br0.network ---------------------------- [Match] Name=br0 [Network] LinkLocalAddressing=ipv6 Address=10.10.10.254/24 ConfigureWithoutCarrier=yes ---------------------------- Now, upon "systemctl restart systemd-networkd", "ip addr" show "br0" with the correct IP address but still "DOWN"! ---------------------------- 4: br0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000 [...] ---------------------------- The problem is not solved! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1736975 Title: netplan does not bring up anonymous bridge on boot To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1736975/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs