This worked for me in 24.04, but broke in 24.10.
Getting this error:
nm-openvpn: OPTIONS ERROR: failed to negotiate cipher with server. Add the
server's cipher ('AES-192-CBC') to --data-ciphers (currently
'AES-256-GCM:AES-128-GCM:CHACHA20-POLY1305') if you want to connect to this
server.
I had to edit the yaml file in /etc/netplan as @morgancoxuk suggested.
(And restart the machine because I didn't know how to get the GUI tool
to re-read it)
@nteodosio, why did you mark "Fix released" for Oracular? Was any fix
actually released?
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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 NetworkManager-OpenVPN:
New
Status in network-manager package in Ubuntu:
Incomplete
Status in network-manager-openvpn package in Ubuntu:
Fix Released
Status in network-manager-openvpn source package in Focal:
Incomplete
Status in network-manager-openvpn source package in Jammy:
Incomplete
Status in network-manager-openvpn source package in Noble:
Fix Released
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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