> The exact conditions for reproducing this bug on mixed IPv4/IPv6 networks are not known
Looking at the upstream commit description, isn't it just that a DHCPv6 lease expires and the server NAKs a request for the same IP again? Or is that not sufficient to trigger the problem. In any case, I appreciate there might be difficulty in testing the fix, but what's the actual criteria you propose to use to decide when the bug is to be marked verification-done-bionic? ** Also affects: network-manager (Ubuntu Bionic) Importance: Undecided Status: New ** Changed in: network-manager (Ubuntu Bionic) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1969901 Title: network-manager fails to renew ipv6 address Status in network-manager package in Ubuntu: Fix Released Status in network-manager source package in Bionic: Incomplete Bug description: [Impact] * This affects Ubuntu 18.04 where Network Manager version 1.10.6 is used. * Network manager might kill dhclient(6) and fail to start it again causing the IPv6 address to be lost on a network that uses mixed IPv4/IPV6. The network status will still be seen as online in gnome since ipv4 is still active. The user then have to manually remove the dhcpv6 lease files and restart ipv6 connection/restart network manager to regain IPv6 connectivity. * This is a cherry-pick from Network manager 1.10.8 (Ubuntu's version is based on 1.10.6): https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/commit/7fbbe7ebee99785e38d39c37e515a64a28edef0f * Upstream bug: https://bugzilla.gnome.org/show_bug.cgi?id=783391 [Test Plan] * The exact conditions for reproducing this bug on mixed IPv4/IPv6 networks are not known but includes using both IPv4 and IPv6, both using dhcp. [Where problems could occur] * The change is in the dchp lease expiration handling so verify that there is no regression in dhcp renewals on different type of configuration include IPv6 [Other Info] * We have tested this patch on a couple of clients where we have seen this this problem. If this patch is feasible to include in Ubuntu 18.04 we could request more users to test. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1969901/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp