Chapter 11 IPsec VPN for FortiOS 5.0 : IPv6 Features
  
IPv6 Features
In order to configure IPv6 features using the web-based manager, IPv6 must be enabled using Feature Select. Go to System > Config > Features, enable IPv6, and click Apply.
The following IPv6 features are available from the FortiOS 5.0 web‑based manager:
• IPv6 policies
• IPv6 Network Address Translation
• ICMPv6
• IPv6 in dynamic routing
• Dual stack routing
• IPv6 tunnelling
• SIP over IPv6
• New Fortinet FortiGate IPv6 MIB fields
• IPv6 Per-IP traffic shaper
• DHCPv6
• IPv6 forwarding—Policies, IPS, Application Control, flow‑based antivirus, web filtering, and DLP
• FortiGate interfaces can get IPv6 addresses from an IPv6 DHCP server