VPN (Virtual Private Network) is a set of technologies for establishing one or more network connections (i.e. a logical network) on top of another network (e.g. Internet). UserGate allows you to establish the following types of VPN connections:
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Remote access VPN. In this case, UserGate will operate as the server while users of other devices will become VPN clients. UserGate supports the standard clients for most of popular operating systems, including Windows, Linux, Mac OS X, iOS, Android, and more.
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Site-to-Site VPN. In this case, one of your UserGate servers operates as the server while another UserGate server becomes a client. A client initiates a connection with the server. A server-to-server connection allows you to add all your remote offices to a single logical network.
Tunnels are established using Layer 2 Tunneling Protocol (L2TP), and the data being transmitted are protected with IPSec.