Chapter 1 What’s New for FortiOS 5.2.1 : IPsec VPN : IPv6 Support for IPsec Phase 2
  
IPv6 Support for IPsec Phase 2
IPv6 support has been added to IPsec phase 2, allowing IPv6 firewall address and address groups to be used for phase 2 source and destination address types. The management of static selector rules has also been moved into the IKE daemon, allowing named selectors to be reloaded if any named address or address groups are changed, without requiring the FortiGate unit to be rebooted before changes are applied.