Chapter 11 IPsec VPN for FortiOS 5.0 : IPv6 Features : IPv6 policies : IPv6 security policies
  
IPv6 security policies
IPv6 security policies now support all the features supported by IPv4 security policies. The following new features were added in FortiOS 5.0:
Policy types and subtypes.
NAT support including using the destination interface IP address, fixed port, and dynamic IP pools.
All security features (antivirus, web filtering, application control, IPS, email filtering, DLP, VoIP, and ICAP).
All traffic shaping options, including: shared traffic shaping, reverse shared traffic shaping, and per-IP traffic shaping.
All user and device authentication options.