Additional information: I've tried to reproduce this with a virtual machine to no effect - including installing cosmic, enabling firewall, upgrading to disco and seeing if it still occurs. As of yet, I have not managed to reproduce it (save for the fact that this exact problem is affecting two disco installations with very similar software setup).
I will continue trying to reproduce and update when I have more information. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1826394 Title: IPv6 not being brought up on interface after enabling (and subsequently disabling & rebooting) UFW Status in network-manager package in Ubuntu: New Bug description: Have an unusual issue. I have (native) IPv6 on my network. Typically, each connection has two dhclient processes; one for a v4 address, and dhclient with the -6 parameter for the v6 connection. Upon running 'ufw enable' in a console, a firewall is activated. After restarting NetworkManager, only one dhclient process is started by NetworkManager. This was undesirable, so I ran 'ufw disable', and rebooted just to be sure nothing had been left around. All rules gone, but now NetworkManager is point blankly refusing to start a dhclient process for the IPv6 side of networking. I've tried starting NetworkManager with --log-level=DEBUG and watching syslog; nothing seems to indicate that dhclient is even started for IPv6. The only potential indicator of something unusual is 'ipv6.method' being set to 'ignore' periodically, e.g.: Apr 25 11:22:57 lpt00258lin-gorgonzola NetworkManager[9238]: <debug> [1556187777.9076] ++ ipv6.method = 'auto' Apr 25 11:22:57 lpt00258lin-gorgonzola NetworkManager[9238]: <debug> [1556187777.9080] ++ ipv6.method = 'auto' Apr 25 11:22:57 lpt00258lin-gorgonzola NetworkManager[9238]: <debug> [1556187777.9168] ++ ipv6.method = 'ignore' Apr 25 11:22:57 lpt00258lin-gorgonzola NetworkManager[9238]: <debug> [1556187777.9224] ++ ipv6.method = 'ignore' Any clues would be most helpful! ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: network-manager 1.16.0-0ubuntu2 ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6 Uname: Linux 5.0.0-13-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.10-0ubuntu27 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Thu Apr 25 12:17:43 2019 IfupdownConfig: # ifupdown has been replaced by netplan(5) on this system. See # /etc/netplan for current configuration. # To re-enable ifupdown on this system, you can run: # sudo apt install ifupdown NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true ProcEnviron: TERM=screen-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_GB.UTF-8 SHELL=/bin/zsh SourcePackage: network-manager UpgradeStatus: Upgraded to disco on 2019-04-23 (2 days ago) nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.16.0 connected started full enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1826394/+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
