To deploy VPN-based remote access by using Windows Server 2008, take the following steps:
Configure Internet infrastructure.
Configure RADIUS servers.
Deploy VPN servers.
Configure intranet infrastructure.
Deploy VPN clients.
You must deploy certificates if you are using the following:
L2TP/IPsec connections with certificate authentication. Each VPN client computer and VPN server requires a computer certificate.
The Routing and Remote Access service supports the configuration of a preshared key for IPsec authentication of L2TP/IPsec connections. In the Routing and Remote Access snap-in, in the properties dialog box of a VPN server, on the Security tab, you can enable a custom ...