What is VPN?
A virtual private network (VPN) extends a private network across a public network, and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network. Applications running across a VPN may therefore benefit from the functionality, security, and management of the private network.
VPN tunneling protocols basic consist of PPTP, L2TP, GRE, IPSEC, OpenVPN, DMVPN.
You can establish a virtual and dedicated point-to-point connection through virtual tunnels and encrypted algorithms to access the corporate intranet directly or transport data securely.