On ubuntu 17.04...

[Zibri]

pvpn -t ssh-3 secureproxy default

root@secureproxy's password:
root@secureproxy's password:
channel 0: open failed: administratively prohibited: open failed
Cannot find device "tun68"
Cannot find device "tun68"
Cannot find device "tun228"
Failed to set tun228 up