Powershell remote static IP via script

Question

I'm looking to write a Powershell function to assign a static IP address remotely to a computer specified at runtime. I've done some research and found the Win32_NetworkAdapterConfiguration class, which seems like exactly what I need. So I sat down and wrote myself a function: ``` Function Set-StaticIPAddress { param ( [Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [String] $ComputerName , [Parameter(Mandatory = $true, Position = 1)] [Alias("IPv4Address")] [String] $IPAddress , [Parameter(Position = 2)] [String] $SubnetMask = "none" , [Parameter(Position = 3)] [String] $DefaultGateway = "none" , [Parameter(Position = 4)] [String[]] $DNSServers = ("172.16.1.36","172.16.1.78") , [Parameter(Position = 5)] [PSCredential] $Credential ) process { # There's some error-checking here that I've snipped out for convenience Write-Verbose "Testing connection to $ComputerName" if (-not (Test-Connection $ComputerName)) { Write-Error "…

Accepted Answer

You might have more luck using Invoke-Command to run netsh on the remote computer, which sets the IP address, subnet mask, and gateway in one command. However, netsh uses a different name for the interface, which you can get from the NetConnectionID property of the Win32_NetworkAdapter class.

```
$InterfaceName = $Get-WmiObject Win32_NetworkAdapter | ?{$_.Description -eq $wmi.Description} | select -ExpandProperty NetConnectionID
Invoke-Command -ComputerName $ComputerName -Credential $Credential -ScriptBlock {netsh interface ip set address $InterfaceName static $IPAddress $SubnetMask $DefaultGateway 1}
```

You can wrap the second line in another `if ($Credential)` block.

However, I strongly recommend that you verify that the filter is returning one object rather than an array of objects, as suggested in my comments above. Or, to be safe, change

```
$wmi = Get-WmiObject Win32_NetworkAdapterConfiguration -ComputerName $ComputerName -Filter "IPEnabled = 'True'" -Credential $Credential
```

to

```
$wmi = Get-WmiObject Win32_NetworkAdapterConfiguration -ComputerName $ComputerName -Filter "IPEnabled = 'True'" -Credential $Credential | select -First 1
```

That will ensure you're getting only one object, but of course it can't ensure that it's necessarily the one you want if there's more than one with IPEnabled true.

Powershell remote static IP via script

Solution

Problem