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<td width="20%">[[VMware Server Virtual Network Architecture|Previous]]<td align="center">[[VMware Server 2.0 Essentials|Table of Contents]]<td width="20%" align="right">[[VMware Server NAT Configuration|Next]]</td>
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<td width="20%">VMware Server Virtual Network Architecture<td align="center"><td width="20%" align="right">VMware Server NAT Configuration</td>
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As outlined in the chapter entitled [[VMware Server Virtual Network Architecture]], VMware Server provides two types of virtual network adapter. ''Virtual network adapters'' are installed into virtual machines and provide a mechanism for guest operating systems to establish network communications. ''Host virtual adapters'', on the other hand, are installed in the host operating system and are used to establish communication between the host operating system and virtual machines running in VMware Server based NAT and HostOnly based virtual networks.
VMware Server 2 increased the number of virtual network adapters that can be added to a virtual machine from 4 to 10. Although the VI Web Access new virtual machine wizard allows virtual network adapters to be configured into a virtual machine it is quite common to need to add additional adapters later in the lifecycle of the virtual machine. Fortunately, VMware Server makes the addition of virtual network adapters quick and easy to achieve.
The first step in the process is to log into the VI Web Access management interface (details of which are covered in the [[A Guided Tour of the VMware Server 2.0 Infrastructure Web Access Interface]] chapter of this book). Once logged in, identify and select the required virtual machine from the ''Inventory'' panel. Just as a physical computer system needs to be shutdown and powered off before the cover is removed and a new network adapter card installed, the virtual machine must be powered off before a new virtual network adapter can be added. The currently select virtual machine may be shutdown by clicking the power off button in the VI Web Access toolbar, or by selecting the ''Power off'' link in the ''Commands'' panel of the workspace.
Once the virtual machine status panel indicates that the virtual machine has been successfully powered off, click on the ''Add Hardware'' link in the ''Commands'' panel to invoke the VMware Add Hardware Wizard. The wizard is generic in that it allows a variety of different virtual hardware devices to be added to a virtual machine in addition to a virtual network adapter. To proceed with the device installation click on the link labeled ''Network Adapter'' to proceed to the network adapter properties screen as illustrated in the following figure:
Once the ''Remove'' option have has been selected a dialog will appear seeking confirmation that the virtual device is to be removed from the virtual machine. Selection of the ''Yes'' button will proceed with the removal process. The virtual network adapter will disappear from the virtual machine's hardware list and will be absent next time the virtual machine is powered on.
== Modifying Virtual Network Adapter Settings ==
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Enter ''no'' to proceed to with network configuration, at which point the script will ask whether networking is to be provided for the virtual machines running on the host. To disable all networking answer ''no'', otherwise accept the default, ''yes''.
The next prompt provides options for different ways to configure existing settings. At this prompt select the ''editor'' option:
. vmnet8 is a NAT network on private subnet 172.16.86.0.
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