Pre-requisites for Auto-Discovering the VMs on a vSphere/ESX Server

The VMware tools (vmtools) must be installed on all guest operating systems hosted on an vSphere/ESX server. Using vmtools, the remote agent determines the IP addresses of the guest VMs and the operating systems that they are configured with. If the eG Enterprise monitor shows “N/A” against the IP address field or the operating system type of any VM, this is usually a good indicator that vmtools has not been installed on that VM.