Not realy better.... routes are still there ...
Test 1: I configured "Auto Reboot" to ping the internal IP of my Tunnel (10.164.31.1) and to restart the mobile connection if two attemps are faild.
Connection is restarted automaticly, but routes to VPN are still there ....
Test 2: I configured "Auto Reboot" to ping the internal IP of my Tunnel (10.164.31.1) and to restart the modem connection if two attemps are faild.
Connection is restarted automaticly, but routes to VPN are still there ....
Test 3: I configured "Auto Reboot" to ping the internal IP of my Tunnel (10.164.31.1) and reregister connection if two attemps are faild.
Connection is restarted automaticly, but routes to VPN are still there ....
Test 4: I configured "Auto Reboot" to ping the internal IP of my Tunnel (10.164.31.1) and reboot if two attemps are faild.
nothing happens ;-( ....
Test 5: Hard reset (power lost) + VPN Server down/not reachable
routes are gone .... Internet via Mobile GW is possible .... ---> VPN Server back up ---> Internet via VPN possible ----> Server Down ---> Routes are gone ;-)
---> Server back up ---> Internet via VPN possible ----> Server Down ---> routes are still there ;-(
Test 6: Hard reset (power lost) + VPN Server up/reachable
.... Internet via VPN possible ----> Server Down ---> Routes are stil there... ;-(
I also found out that the NTP Deamon sets the time wrong ..... 2019-03-21, 03:37:49 but it is 2019-04-01, 22:00:00 after Sync with the Webbrowser the time is correct, but on the next NTP sync it is wrong again ;-(