A Step-by-Step Guide to Using Server Virtualization Software - MCTS Guide to Microsoft Windows Server 2008 Active Directory Configuration - page 578

Figure D-3

Settings for a virtual machine

• NetworkInterfaceName —The actual name of a NIC model, such as an Intel or Broadcom
NIC, that the virtual machine is directly connected to for regular network and Internet
access. With this selection, network configuration tasks that apply to other network
computers also apply to the virtual machine. If a DHCP server is on the network or if
the network uses a router with Network Address Translation (NAT), the virtual machine's
network connection can be configured to use these services. The same applies if a DNS
server is set up.
• Shared Networking (NAT) —Used to create a private Virtual PC network that has a vir-
tual DHCP server and a virtual NAT-enabled router or firewall. Typically, the first vir-
tual computer created acts as the DHCP server and provides NAT services. In this
arrangement, Microsoft Virtual PC performs as a virtual DHCP server, leasing IP
addresses for virtual machines in the range of 192.168.131.1 to 192.168.131.253.
Further, the virtual machines appear as computers in a private NAT-protected network.
A connection to the Internet is shared among the virtual machines and is protected in a
way similar to a NAT-enabled router or firewall.
• Loopback Adapter —You see this option if the operating system is configured to have
a Microsoft loopback adapter (configured as a network adapter, such as through the
Add Hardware option in Control Panel). This option is used in two contexts. One
context is when no physical network connection is present, but you want to simulate
network connectivity between the host and all virtual machines. A second context is
when you are creating a network with many routers and firewalls as well as many
virtual machines.

5. Make the networking selections that are appropriate for your situation.
6. Click Memory in the left pane. Notice that you can increase the memory allocation for the
virtual machine by using the slider bar in the right pane.
7. In the left pane, click Hard Disk 1 and notice that the right pane shows the path to the vir-
tual hard disk file. Also, notice you can configure the Hard Disk 2 and Hard Disk 3 options
for additional virtual hard disks. To do this, click Hard Disk 2 in the left pane, for example,