Always On VPN UDP Connection using Encapsulating Security Payload (ESP) is not working
In certain network configurations, an Always On VPN UDP connection using Encapsulating Security Payload (ESP) may not perform UDP Encapsulation of the ESP packet. It may behave similarly to a Layer 2 Tunneling Protocol (L2TP), where no UDP header or port is sent in the ESP packet. This will cause the VPN connection to fail on the LoadMaster.