Newer nmcli no longer parses '--' as end-of-options for 'connection up', it treats it as the connection name and fails with "Unbekannte Verbindung »--«". The 'id' keyword is the canonical way to mark the following argument as the connection name.
Newer nmcli no longer parses '--' as end-of-options for 'connection up', it treats it as the connection name and fails with "Unbekannte Verbindung »--«". The 'id' keyword is the canonical way to mark the following argument as the connection name.