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→VMware Server DHCP Server
Host virtual adapters are installed on the host operating system and serve to provide communication between the host and any virtual machines in ''NAT'' and ''HostOnly'' virtual network configurations. Two host virtual adapters are installed by VMware Server, one for communication with the NAT virtual network and the second for communication with the HostOnly virtual network. Host virtual adapters are not, by default, connected to any physical network adapter devices on the host system, thereby allowing access solely to the internal virtual networks.
== VMware Server Built-in DHCP Server == The purpose of a Dynamic Host Configuration Protocol (DHCP) server is to provide IP addresses and other configuration to network clients. When a virtual machine is configured to use bridged networking, it can obtain either obtain an IP address from a DHCP server on the external network, or be assigned a network appropriate static IP address by an administrator. Virtual machines on HostOnly or NAT virtual networks need to be dynamically assigned IP addresses but have no means of communicating directly with an external DHCP server. In order to address this requirement, VMware Server provides its own built in DHCP server which is connected to NAT and HostOnly virtual networks via the corresponding ''virtual network switch''. A virtual machine on a HostOnly virtual network would, therefore, communicate via its ''virtual network adapter'' through the ''virtual network switch'' to the internal DHCP server to obtain a suitable IP address for the HostOnly private subnet.
