FortiGate v6.4.x, v7.0.x,v7.2.x, v7.4.x, up to v7.6.2.
Starting in v7.6.3, the SSL VPN tunnel mode feature is replaced with IPsec VPN tunnel, where users will be able to configure IPsec to use TCP port 443 for communication.
diagnose debug disable diagnose debug reset diagnose vpn ssl debug-filter src-addr4 x.x.x.x diagnose debug application sslvpn -1 diagnose debug application tvc -1 diagnose debug console timestamp enable diagnose debug enable