Automatic configuration of FortiClient dialup clients
The FortiClient application can obtain its VPN settings from the FortiGate VPN server. FortiClient users need to know only the FortiGate VPN server IP address and their user name and password on the FortiGate unit.
The FortiGate unit listens for VPN policy requests from clients on TCP port 8900. When the dialup client connects:
• The client initiates a Secure Sockets Layer (SSL) connection to the FortiGate unit.
• The FortiGate unit requests a user name and password from the FortiClient user. Using these credentials, it authenticates the client and determines which VPN policy applies to the client.
• Provided that authentication is successful, the FortiGate unit downloads a VPN policy to the client over the SSL connection. The information includes IPsec phase 1 and phase 2 settings, and the IP addresses of the private networks that the client is authorized to access.
• The client uses the VPN policy settings to establish an IPsec phase 1 connection and phase 2 tunnel with the FortiGate unit.