Public bug reported:

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)

** Affects: network-manager-openvpn (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug kinetic wayland-session

** Bug watch added: gitlab.gnome.org/GNOME/NetworkManager-openvpn/-/issues #97
   https://gitlab.gnome.org/GNOME/NetworkManager-openvpn/-/issues/97

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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 network-manager-openvpn package in Ubuntu:
  New

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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