PowerShell function to list IP address detail for running Hyper-V VMs

get-guestinfo.ps1

function Get-GuestInfo($VMName) {
    $VMs = @()
    if ($VMName) {
        $VMs += Get-VM $VMName | Where-Object State -eq "Running"
    } else {
        $VMs += Get-VM | Where-Object State -eq "Running"
    }
    ForEach ($VM in $VMs) {
        $NICs = $VM | Select-Object -ExpandProperty NetworkAdapters
        if ($NICs) {
            Write-Host
            Write-Host "$($VM.Name):"
            ForEach ($NIC in $NICs) {
                $NICDetail = New-Object psobject -Property @{
                    SwitchName = $NIC.SwitchName
                    IPAddresses = $NIC.IPAddresses -Join ", "
                }
                Write-Host "* $($NICDetail.SwitchName): $($NICDetail.IPAddresses)"
            }
        }   
    }
    Write-Host
}

Note: To use Get-VM, your local user account needs to belong to the "Hyper-V Administrators" group or you'll get a permission error. This change is easily made in Computer Management > Local Users and Groups, and requires logging off and on before membership is recognized.