OpenVPN won't start

Installing and Using OpenWrt
1

Am getting this error log repeated every few seconds for OpenVPN, which will not start despite following this tutorial: https://support.nordvpn.com/Connectivity/Router/1047411192/OpenWRT-CI-setup-with-NordVPN.htm

Sat Apr 30 14:49:26 2022 daemon.warn openvpn(nordvpn)[4632]: DEPRECATED OPTION: --cipher set to 'AES-256-GCN' but missing in --data-ciphers (AES-256-GCM:AES-128-GCM). Future OpenVPN version will ignore --cipher for cipher negotiations. Add 'AES-256-GCN' to --data-ciphers or change --cipher 'AES-256-GCN' to --data-ciphers-fallback 'AES-256-GCN' to silence this warning.
Sat Apr 30 14:49:26 2022 daemon.warn openvpn(nordvpn)[4632]: Unsupported cipher in --data-ciphers: AES-256-GCN
Sat Apr 30 14:49:26 2022 daemon.err openvpn(nordvpn)[4632]: Options error: NCP cipher list contains unsupported ciphers or is too long.
Sat Apr 30 14:49:26 2022 daemon.warn openvpn(nordvpn)[4632]: Use --help for more information.
3

The errors are due to having some improper / deprecated settings in the .ovpn file. Are you using the latest .ovpn file from NordVPN?

As new versions of OpenVPN are released, they are rather strict about discontinuing old ciphers that are insecure.

What should be done to correct or workaround is explained in the error messages.

1 Like
4

The file was not that old (February) and seemed to be the same as the other one, but it solved the issue - thanks!

5

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