** Description changed: - We have experienced this issue on mixed ipv6/ipv4 corporate network on Ubuntu 18.04. - Unfortunately next LTS release is not yet an option for us. + [Impact] - This is same as https://bugzilla.gnome.org/show_bug.cgi?id=783391 - This was fixed in 1.12.0. + * 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. - Could you consider including the below patch on ubuntu 18.04? + * 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 - https://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?id=17009ed91da8b3e0b10ee7e94d220be9bd3fa84c + * Upstream bug: + https://bugzilla.gnome.org/show_bug.cgi?id=783391 - The patch can be applied with some adjustements on top of the version of - network manager included in Bionic (pull-lp-source network-manager - bionic). A function name has changed, changing the function name in the - downloaded patch is enough to apply the patch. + [Test Plan] - cat - ../57ab9fd60fc9ec3ab7bc3fcef40b1f003d614162..17009ed91da8b3e0b10ee7e94d220be9bd3fa84c.patch - |sed - 's|nm_dbus_object_clear_and_unexport|nm_exported_object_clear_and_unexport|g' - > modified_patch.patch + * 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. - This has been tested on some devices and so far we have not seen any problems - ipv4 only network (cable/wifi) - ipv6/ipv4 mixed network (cable/wifi) + [Where problems could occur] + + * This patch could possibly break networking using and that would be bad. + Network manager should be able to restart connection more properly with + this patch though. + + [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.
** Patch added: "Debdiff against network-manager_1.10.6-2ubuntu1.5" https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1969901/+attachment/5584241/+files/network-manager_1.10.6-2ubuntu1.6.debdiff ** Description changed: [Impact] - * 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 affects Ubuntu 18.04 where Network Manager version 1.10.6 is + used. - * 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 + * 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. - * Upstream bug: - https://bugzilla.gnome.org/show_bug.cgi?id=783391 + * 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. + * 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] - * This patch could possibly break networking using and that would be bad. - Network manager should be able to restart connection more properly with - this patch though. + * This patch could possibly break networking using and that would be bad. + Network manager should be able to restart connection more properly with + this patch though. [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. + * 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. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1969901 Title: network-manager fails to renew ipv6 address To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1969901/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
