Setting Guest IP Addresses From The Host
Last week at TechEd I had several people ask about how they can set the IP address of a guest from the host. We've had this functionality in Hyper-V since Windows Server 2012, it was largely introduced for Hyper-V replication (to allow you to set a different IP address on failover). But with a few lines of WMI you can take advantage of this functionality as well. Here's how.
$vmName = "Demo"
#Get an instance of the management service, the Msvm Computer System and setting data
$Msvm_VirtualSystemManagementService = Get-WmiObject -Namespace root\virtualization\v2 -Class Msvm_VirtualSystemManagementService
$Msvm_ComputerSystem = Get-WmiObject -Namespace root\virtualization\v2 -Class Msvm_ComputerSystem -Filter "ElementName='$vmName'"
$Msvm_VirtualSystemSettingData = $Msvm_ComputerSystem.GetRelated(
"Msvm_VirtualSystemSettingData",
"Msvm_SettingsDefineState",
$null,
$null,
"SettingData",
"ManagedElement",
$false,
$null)
#Get an instance of the port setting data object and the related guest network configuration object
$Msvm_SyntheticEthernetPortSettingData = $Msvm_VirtualSystemSettingData.GetRelated("Msvm_SyntheticEthernetPortSettingData")
$Msvm_GuestNetworkAdapterConfigurations = $Msvm_SyntheticEthernetPortSettingData.GetRelated(
"Msvm_GuestNetworkAdapterConfiguration",
"Msvm_SettingDataComponent",
$null,
$null,
"PartComponent",
"GroupComponent",
$false,
$null)
$Msvm_GuestNetworkAdapterConfiguration = ($Msvm_GuestNetworkAdapterConfigurations | % {$_})
#Set the IP address and related information
$Msvm_GuestNetworkAdapterConfiguration.DHCPEnabled = $false
$Msvm_GuestNetworkAdapterConfiguration.IPAddresses = @("192.168.0.10")
$Msvm_GuestNetworkAdapterConfiguration.Subnets = @("255.255.255.0")
$Msvm_GuestNetworkAdapterConfiguration.DefaultGateways = @("192.168.0.1")
$Msvm_GuestNetworkAdapterConfiguration.DNSServers = @("192.168.0.2", "192.168.0.3")
#Set the IP address
$Msvm_VirtualSystemManagementService.SetGuestNetworkAdapterConfiguration(
$Msvm_ComputerSystem.Path,
$Msvm_GuestNetworkAdapterConfiguration[0].GetText(1))