So bin mal etwas weiter gekommen und habe versucht openvpn via telnet zu starten, dass kam bei raus.
openvpn --config /etc/openvpn/client.conf
Sat May 6 12:31:45 2017 WARNING: file '/etc/openvpn/userpass.txt' is group or others accessible
Sat May 6 12:31:45 2017 OpenVPN 2.4.0 mipsel-oe-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built
on May 2 2017
Sat May 6 12:31:45 2017 library versions: OpenSSL 1.0.2j 26 Sep 2016, LZO 2.09
Sat May 6 12:31:45 2017 TCP/UDP: Preserving recently used remote address: [AF_INET]185.92.211.158:19988
Sat May 6 12:31:45 2017 UDP link local: (not bound)
Sat May 6 12:31:45 2017 UDP link remote: [AF_INET]***:19988
Sat May 6 12:31:45 2017 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to pre
vent this
Sat May 6 12:31:52 2017 [vpn-de-****.com] Peer Connection Initiated with [AF_INET]****8:19988
Sat May 6 12:31:53 2017 ERROR: Cannot open TUN/TAP dev /dev/net/tun: No such file or directory (errno=2)
Sat May 6 12:31:53 2017 Exiting due to fatal error
Es fehlt das tun device aber wie installiere ich das nach?