c9429b30_yper_V_VS_Citrix_Xen___My_Blog__Hypervisor_Attributes
[VMware ESXi 5.0] ESXi Firewall is a service-oriented and stateless firewall that protects the ESXi 5.0 management interface. Configured using the vSphere Client or at the command line with esxcli interfaces. Nothing comparable [Citrix XenServer 5.6 FP1] Nothing comparable [Hypervisor Attributes] 
Management Interface Firewall
Comparison between Vmware VS Hyper-V VS Citrix Xen | My Blog
Hypervisor Attributes