Multiple error during and after VPN client reconnection

[Darkren]

Describe the bug When VPN client tries to reconnect to the non-running VPN server there're multiple errors popping in logs. This happens because app doesn't listen for new connections and route itself doesn't get created. So, when client sends hello message, this message gets dropped by remote visor with error. And so do other packets. When VPN server finally gets started all of old routes get created. Eventually they expire and get removed, again, with errors in logs. Overall functionality is not hurt, it works fine, but errors hurt user experience.

Environment information: Independent

Steps to Reproduce Steps to reproduce the behavior:

1. Run remote visor
2. Run local visor
3. Setup transport between visors
4. Start VPN client, but do not start VPN server