Chapter 1 What’s New for FortiOS 5.2.1 : SSL VPN : SSL VPN Configuration : VPN Portal
  
VPN Portal
New options for split tunneling have been added to SSL VPN portals, which are configured by going to VPN > SSL > Portals, including a routing address and a tunnel mode for IPv6. These options can also be configured in the CLI, using the command config vpn ssl web portal.