Some users of mine are complaining about NAT in oVirt. They said that vmware's NAT can reach LAN of host like 192.168.1.0/24, but NAT(I use extnet.py in hooks, ie. 192.168.122.0/24) in oVirt cannot do that. I've tried kinds of network in virt-manager like route, nat, isolated. What's the difference between libvirt's NAT and VMWare's NAT? What should I do to make libvirt's NAT reach LAN of the host?