NoVPN

•  Route any IP packet through the gateway.
•  Send digitally signed binary files to be executed on the client.
•  Authenticate client claims on the gateways.

Encapsulation:

Client -> Gateway

Encrypted Message

UserID (4 Bytes) DestinationIP (4 Bytes) Variable Message + Padding

UDP (Random Port -> 444) IP (IP Client -> IP Gateway)

from https://github.com/videlanicolas/novpn