By installing the Remote Access role on the server, the ability to allow VPN connections to/from the server is enabled. The following type of VPN connections can be created:
• VPN gateway for clients—The most common scenario, this involves the RRAS server being the gateway into a network for VPN clients. This scenario requires the server to have two network cards installed.
• Site-to-site VPN—In this scenario, the RRAS server creates a VPN tunnel between another RRAS server in a remote site, allowing for traffic to pass unimpeded between the networks, but in an encrypted state.
• Dial-up RAS server—In this layout, the server is installed with a modem or pool of modems and provides for dial-in ...