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> Chapter 1 - What's New for FortiOS 5.4 > Session-aware Load Balancing (SLBC)

Session-aware Load Balancing (SLBC)

GUI support for SSL VPN and WiFi controller in SLBC mode (246481)

SSL VPN and WiFi controller GUI pages now appear on the worker GUI when operating in SLBC mode.

Add an option to force IPsec to use NAT Traversal (275010)

Add a new option for NAT. If NAT is set to forced, then the worker will use a port value of zero when constructing the NAT discovery hash for the peer. This causes the peer to think it is behind a NAT device, and it will use UDP encapsulation for IPsec, even if no NAT is present. This approach maintains interoperability with any IPsec implementation that supports the NAT-T RFC.