Vehicle identification number (VIN);
Valid variables and reference values that can be collected by the gateway.
5.3 VPN Application
The VPN is intended to establish a private network on the public network for
encrypted communication. A VPN gateway enables remote access by encrypting data
packets and converting the destination address of data packets. The VPN can be
realized by a server, hardware, or software, or in other ways. Compared with the
traditional DDN private line or frame relay, the VPN provides a more secure and
convenient remote access solution.
Common VPN application scenario: For example, an employee on a business trip
accesses the enterprise's intranet. The employee connects to the enterprise's VPN
server and then accesses the enterprise's intranet through the VPN server.
Communication data between the VPN server and the client is encrypted and can be
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