Using SteelHead-c for VMware ESX/ESXi : Overview of SteelHead-c virtual appliances for ESX/ESXi : Limitations
  
Limitations
SteelHead-c for ESX/ESXi has the following limitations:
•  Provisioning - You must provision ESX resources manually. You can use any provisioning tool provided by VMware-based cloud providers such as vSphere.
•  Virtual machine operations - You must use the cloud provider toolset (such as the vSphere tools
or Cloud Console) to start, stop, pause, and resume the virtual machine.
•  Discovery - The portal does not provide discovery services for SteelHead-c, because
a SteelHead-c deployed on an ESX cloud requires static IP addresses to work correctly.