My VPN conf file had a cipher and, commented out, a data-cipher option.
I uncommented data-cipher and commented cipher and tried via gnome-
control-center to add that VPN instead. It worked in 24.10 and 24.04, I
can connect to that VPN normally (confirmed with IP) so I`m marking this
releaased there.

I`ll be test in 22.04 too because a comment mentions that release. The
original bug report is on 22.10 which is no longer supported.

A clearer reproduction case with release information would be still very
ewelcome.

** Also affects: network-manager (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: network-manager-openvpn (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: network-manager (Ubuntu Noble)
   Importance: Undecided
       Status: New

** Also affects: network-manager-openvpn (Ubuntu Noble)
   Importance: Undecided
       Status: New

** Also affects: network-manager (Ubuntu Oracular)
   Importance: Undecided
       Status: Confirmed

** Also affects: network-manager-openvpn (Ubuntu Oracular)
   Importance: Undecided
       Status: Confirmed

** Also affects: network-manager (Ubuntu Jammy)
   Importance: Undecided
       Status: New

** Also affects: network-manager-openvpn (Ubuntu Jammy)
   Importance: Undecided
       Status: New

** Changed in: network-manager-openvpn (Ubuntu Oracular)
       Status: Confirmed => Fix Released

** Changed in: network-manager-openvpn (Ubuntu Noble)
       Status: New => Fix Released

-- 
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/1993634

Title:
  network-manager-openvpn: --cipher option deprecated in OpenVPN 2.6, no
  option to set suggested --data-ciphers flag instead

Status in NetworkManager-OpenVPN:
  New
Status in network-manager package in Ubuntu:
  Confirmed
Status in network-manager-openvpn package in Ubuntu:
  Fix Released
Status in network-manager source package in Focal:
  New
Status in network-manager-openvpn source package in Focal:
  New
Status in network-manager source package in Jammy:
  New
Status in network-manager-openvpn source package in Jammy:
  New
Status in network-manager source package in Noble:
  New
Status in network-manager-openvpn source package in Noble:
  Fix Released
Status in network-manager source package in Oracular:
  Confirmed
Status in network-manager-openvpn source package in Oracular:
  Fix Released

Bug description:
  Latest network-manager-openvpn still uses the deprecated --cipher
  option, and offers no way to set the new --data-ciphers option.

  nm-openvpn[257279]: OPTIONS ERROR: failed to negotiate cipher with server.  
Add the server's cipher ('AES-256-CBC') to --data-ciphers (currently 
'AES-256-GCM:AES-128-GCM:CHACHA20-POLY1305') if you want to connect to this 
server.
  nm-openvpn[257279]: ERROR: Failed to apply push options
  nm-openvpn[257279]: Failed to open tun/tap interface

  Using the command line and passing --data-ciphers option works.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.10
  Package: network-manager-openvpn 1.10.0-1ubuntu2
  ProcVersionSignature: Ubuntu 5.19.0-21.21-generic 5.19.7
  Uname: Linux 5.19.0-21-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.23.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: KDE
  Date: Thu Oct 20 09:50:10 2022
  InstallationDate: Installed on 2022-02-05 (256 days ago)
  InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Alpha amd64 (20220119)
  SourcePackage: network-manager-openvpn
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/network-manager-openvpn/+bug/1993634/+subscriptions


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