Public bug reported: Our VPN provides both IPv4 and IPv6 addresses for the tunnel endpoint. With the latest openvpn on Bionic, the VPN starts, but no network connectivity is actually established if the client is accessing from an IPv6 enabled location; forcing the tunnel endpoint to IPv4 (using its IP address) resolves the issue.
This worked until very recently. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: openvpn 2.4.4-2ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 Uname: Linux 4.15.0-10-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Thu Mar 15 10:06:12 2018 InstallationDate: Installed on 2016-11-06 (493 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) SourcePackage: openvpn UpgradeStatus: Upgraded to bionic on 2017-11-16 (119 days ago) ** Affects: openvpn (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug bionic wayland-session -- You received this bug notification because you are a member of Ubuntu Server, which is subscribed to openvpn in Ubuntu. https://bugs.launchpad.net/bugs/1756032 Title: No VPN connectivity when accessing tunnel endpoint over IPv6 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openvpn/+bug/1756032/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs