Get IP addresses remotely

So recently had a task to get all the IPs from remote computers. Well it turns out this isn't as easy as it should be. After some major googleing I ended up using a PS script I found here, http://techibee.com/powershell/powershell-get-ip-address-subnet-gateway-dns-serves-and-mac-address-details-of-remote-computer/1367.

Here is the script.

[cmdletbinding()]
param (
 [parameter(ValueFromPipeline=$true,ValueFromPipelineByPropertyName=$true)]
    [string[]]$ComputerName = $env:computername
)            

begin {}
process {
 foreach ($Computer in $ComputerName) {
  if(Test-Connection -ComputerName $Computer -Count 1 -ea 0) {
   $Networks = Get-WmiObject Win32_NetworkAdapterConfiguration -ComputerName $Computer | ? {$_.IPEnabled}
   foreach ($Network in $Networks) {
    $IPAddress  = $Network.IpAddress[0]
    $SubnetMask  = $Network.IPSubnet[0]
    $DefaultGateway = $Network.DefaultIPGateway
    $DNSServers  = $Network.DNSServerSearchOrder
    $IsDHCPEnabled = $false
    If($network.DHCPEnabled) {
     $IsDHCPEnabled = $true
    }
    $MACAddress  = $Network.MACAddress
    $OutputObj  = New-Object -Type PSObject
    $OutputObj | Add-Member -MemberType NoteProperty -Name ComputerName -Value $Computer.ToUpper()
    $OutputObj | Add-Member -MemberType NoteProperty -Name IPAddress -Value $IPAddress
    $OutputObj | Add-Member -MemberType NoteProperty -Name SubnetMask -Value $SubnetMask
    $OutputObj | Add-Member -MemberType NoteProperty -Name Gateway -Value $DefaultGateway
    $OutputObj | Add-Member -MemberType NoteProperty -Name IsDHCPEnabled -Value $IsDHCPEnabled
    $OutputObj | Add-Member -MemberType NoteProperty -Name DNSServers -Value $DNSServers
    $OutputObj | Add-Member -MemberType NoteProperty -Name MACAddress -Value $MACAddress
    $OutputObj
   }
  }
 }
}            

end {}

I then used a txt file to input all the servers into the script. This was in the comments sections so I will add it in here..

"get-Content c:\temp\computers.txt | Get-IpDetails.ps1 | ft -auto
where c:\temp\computers.txt is the file that contains computers list."

I used this:
get-Content .\computers.txt | .\Get-IpDetails.ps1 | ft -auto

Also remember that you are running a scriptlet so you need to set this unless you have something else done on your system. 

Set-ExecutionPolicy Unrestricted

Enjoy.