Comparison of the network types
(Network Address Translation)
DescriptionThe VM appears as if it was
a physical host on the network.
The VMware hides behind the IP address of the VMware host. Other VMs in the same NAT network can access it directly.The VM can only access the VMware host and other VMs in the same host-only network
IP addressThe VM requires it’s own IP address from the network it is supposed to  belong to.The VM can have any private IP configured on the VMware host.
Accessibility from networkSame as a physical hostHides behind NAT, so port forwarding on the VMware host required if external access requiredNot accessible from external network unless routed via another VM with access to both external network and the same host-only network
Use cases An always-on server hosted on VMware, or a virtual router or firewall VMs intended for testing, or cases when the amount of IP addresses in the external network is limited.VMs intended for testing with no need to access the network, or VMs which will be protected by a firewall in another VM.
OtherKnown to have problems with some wireless chipsets especially with Linux, also with Windows Vista.NAT is really a host-only network with a default gateway (on the VMware host) that routes and NATs.