ipv6 enabled despite 'disabled' setting?

[Seth Arnold]

Hello,

Periodically our OpenVPN sessions fail in such a way that automated tooling that talks to Launchpad will take minutes before timing out.

See https://portal.admin.canonical.com/132804 for details.

We've found that manually disabling ipv6 helps, eg:

sudo sysctl -w net.ipv6.conf.all.disable_ipv6=1

The network-manager-openvpn portion of the bug is that we've got IPv6 set to "disabled" in the network manager vpn GUI. Somehow this isn't sufficient on its own. The sysctl does the trick.

Thanks

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: network-manager-openvpn 1.8.12-1
ProcVersionSignature: Ubuntu 5.4.0-77.86-generic 5.4.119
Uname: Linux 5.4.0-77-generic x86_64
NonfreeKernelModules: lkp_Ubuntu_5_4_0_77_86_generic_81 lkp_Ubuntu_5_4_0_77_86_generic_79 zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.20
Architecture: amd64
CasperMD5CheckResult: skip
Date: Mon Oct 18 23:55:49 2021
SourcePackage: network-manager-openvpn
UpgradeStatus: Upgraded to focal on 2020-01-24 (633 days ago)