Chapter 11 IPsec VPN for FortiOS 5.0 : FortiGate dialup-client configurations : FortiGate dialup-client configuration steps
  
FortiGate dialup-client configuration steps
The procedures in this section assume that computers on the private network behind the FortiGate dialup client obtain IP addresses from a local DHCP server. The assigned IP addresses do not match the private network behind the FortiGate dialup server.
 
In situations where IP-address overlap between the local and remote private networks is likely to occur, FortiGate DHCP relay can be configured on the FortiGate dialup client to relay DHCP requests to a DHCP server behind the FortiGate dialup server. For more information, see “To configure DHCP relay on a FortiGate interface”.
Configuring dialup client capability for FortiGate dialup clients involves the following general configuration steps:
Determine which IP addresses to assign to the private network behind the FortiGate dialup client, and add the IP addresses to the DHCP server behind the FortiGate dialup client. Refer to the software supplier’s documentation to configure the DHCP server.
Configure the FortiGate dialup server. See “Configure the server to accept FortiGate dialup-client connections”.
Configure the FortiGate dialup client. See “Configure the FortiGate dialup client”.