HA failover supports more features
FortiOS 5.0 HA and the FortiGate Clustering Protocol (FGCP) support the following new types of failover:
• IPv6 session failover: if session pickup is enabled, IPv6 sessions are synchronized between cluster members and, after an HA failover, IPv6 sessions will resume with only minimal interruption.
• NAT64 session failover: if session pickup is enabled, NAT64 sessions are synchronized between cluster members and, after an HA failover, NAT64 sessions will resume with only minimal interruption.
• Full support for NAT 66 session failover: if session pickup is enabled, after an HA failover, NAT66 sessions will resume with only minimal interruption.
• SSL VPN authentication failover support: if session pick is enabled, SSL VPN sessions will resume after a failover without requiring SSL VPN users to re-authenticate.
• Device identification and management (BYOD).