A VPN service, which establishes a private network on the public network for encrypted communication.
X-VPN features SSL-VPN has three characteristics: data privacy, endpoint authentication and information integrity. Pppvpn: point-to-point tunneling protocol; PAP, CHAP, and Microsoft MPPE encryption algorithms; High security of data transmission. L2TP VPN: spanning data transmission and point-to-point protocol framework encapsulation; There are multiple tunnels between the two ends, and different QoS strategies are formulated; Tunnel encryption verification.