Is this on upgrades to artful? or clean-install / clean-bring up of artful?
Note that artful will no longer have ifupdown installed on clean-install, and thus /etc/network/interfaces changes for clean-installs will have no effect at all. And one should instead use netplan e.g. $ sudo netplan ifupdown-migrate to move the system over to networkd. The router advertisement vs networkmanager is interesting case. In practice networkd should not have configured the interface imho, if it was not told to manage it via netplan configuration. Or e.g. NetworkManager should still consider interface for management, even if it has acquired RA ipv6. ** Also affects: nplan (Ubuntu) Importance: Undecided Status: New ** Also affects: network-manager (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1713226 Title: systemd-networkd messes up networking Status in network-manager package in Ubuntu: New Status in nplan package in Ubuntu: New Status in systemd package in Ubuntu: New Bug description: Since systemd-234-2ubuntu8 systemd-networkd is enabled by default. This causes problems existing configurations ex1: if the network has ipv6 enables (the host recieves a router advertisement), networkmanager does not configure the network anymore so you get only ipv6 and no ipv4 connections (since systemd-networkd seems to bring only the link up) ex2: if you use systemd-nspawn and configured static ip addresses in /etc/network/interfaces, systemd-networkd adds a dhcp obtained address on the host0 adapter and a 169.254 address For the average user both is not expected, so my solution was systemctl disable systemd-networkd, but since you seem to insist having this enabled, it must be made sure systemd-networkd does not touch existing configurations. My suggestion is: 1) if /etc/network/interfaces contains anything other than lo -> do not enable systemd-networkd 2) if network-manager is enabled, systemd-networkd must be disabled and vice versa To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1713226/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp