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PPTP and L2TP VPN Configuring L2TP
FortiGate-50A Installation and Configuration Guide 213
Configuring a Windows XP client for L2TP
Use the following procedure to configure a client computer running Windows XP so
that it can connect to a FortiGate L2TP VPN.
To configure an L2TP VPN dialup connection
1 Go to Start > Settings.
2 Select Network and Internet Connections.
3 Select Create a connection to the network of your workplace and select Next.
4 Select Virtual Private Network Connection and select Next.
5 Name the connection and select Next.
6 If the Public Network dialog box appears, choose the appropriate initial connection
and select Next.
7 In the VPN Server Selection dialog, enter the IP address or host name of the
FortiGate unit to connect to and select Next.
8 Select Finish.
To configure the VPN connection
1 Right-click the icon that you created.
2 Select Properties > Security.
3 Select Typical to configure typical settings.
4 Select Require data encryption.
5 Select Advanced to configure advanced settings.
6 Select Settings.
7 Select Challenge Handshake Authentication Protocol (CHAP).
8 Make sure that none of the other settings are selected.
9 Select the Networking tab.
10 Make sure that the following options are selected:
•TCP/IP
• QoS Packet Scheduler
11 Make sure that the following options are not selected:
• File and Printer Sharing for Microsoft Networks
• Client for Microsoft Networks
To disable IPSec
1 Select the Networking tab.
2 Select Internet Protocol (TCP/IP) properties.
3 Double-click the Advanced tab.
Note: If a RADIUS server is used for authentication do not select Require data encryption.
L2TP encryption is not supported for RADIUS server authentication.