Function Get-IPData {
#this function assumes admin credentials
[cmdletBinding()]
Param(
    [Parameter(Position=0,ValueFromPipeline=$True,ValueFromPipelineByPropertyName=$True)]
    [ValidateNotNullOrEmpty()]
    [Alias("name")]
    [string[]]$computername=$env:computername
)
 
Process {
    ForEach ($computer in $computername) {
        Write-Verbose "Querying $($computer.ToUpper())"
        Try 
        {
            #get NICS that are IP and DHCP enabled
            Get-WMIObject -Class win32_networkadapterconfiguration -computername $Computer `
            -Filter "IPEnabled='TRUE' AND DHCPEnabled='TRUE'" -ErrorAction "Stop" | 
            Select Description,DNSHostname,
            @{Name="IPAddress";Expression={$_.IPAddress[0]}},
            @{Name="SubnetMask";Expression={$_.IPSubnet[0]}},
            @{Name="DefaultGateway";Expression={$_.DefaultIPGateway[0]}},DNSDomain,
            @{Name="PrimaryDNS";Expression={$_.DNSServerSearchOrder[0]}},DHCPServer,
            @{Name="DHCPLease";Expression={$_.ConvertToDateTime($_.DHCPLeaseObtained)}},
            @{Name="DHCPExpires";Expression={$_.ConvertToDateTime($_.DHCPLeaseExpires)}},
            @{Name="DHCPTimeToLive";Expression={ $_.ConvertToDateTime($_.DHCPLeaseExpires) - (Get-Date)}},
            MACAddress,
            @{Name="Speed";Expression={
            #use an Associators Of query to get the NIC
              $nic=Get-WmiObject -query "associators of {Win32_NetworkAdapterConfiguration.Index=$($_.index)}" -computername $computer
              $nic.Speed
              }}
        } #close Try
        Catch
        {
            Write-Warning "Failed to retrieve IP configuration from $($computer.ToUpper())"
            Write-Warning $_.Exception.Message
 
        } #close Catch
    } #close ForEach
 } #close Process
} #end function