Your VMware environment is configured without using NSX.

Without NSX, a Deep Security Agent must be installed on each virtual machine hosted on the ESXi server.

Without NSX, you will be unable to use Deep Security to protect your virtual machines.

You can install a Deep Security Virtual Appliance on the ESXi server. This will provide agentless support for Anti-Malware, Intrusion Prevention, Integrity Monitoring, Firewall and Web Reputation.

Without NSX, you can only enable Anti-Malware and Integrity Monitoring protection on the virtual machines. NSX is required to support Intrusion Prevention, Firewall and Web Reputation