VPN Client Software
A wireless client connects to a VPN server through its wireless Ethernet link to the network access point, which the operating system sees as a LAN connection. To set up a VPN tunnel through that connection, you must install the tunneling protocol as a network service.
Configuring Windows for VPN
Windows XP and Vista include support for VPNs, but it's not part of the default installation, so the first step in setting up a VPN client is to install the protocol.
In Windows XP and Windows Vista, a wizard makes the whole process easy. In XP, follow these steps to set up a VPN connection:
From the Control Panel, open Network Connections.
Double-click the New Connection Wizard icon.
When the Network Connection Type window shown in Figure 15-4 ...
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