PowerShell v3 Get Active NIC Information

To quickly gather the information I needed for a script, I simply wanted to identify one (or more) IP addresses that were enabled on my machine. Using the Scripting Guys post,

Use PowerShell to Identify Your Real Network Adapter

I was able to quickly take the following command, and, get basic information for my NIC.

Get-WmiObject win32_networkadapterconfiguration -Filter ipenabled = "true"

When I run this command, I get a large chunk of information like this:

DHCPEnabled      : True

IPAddress        : {192.168.1.2}

DefaultIPGateway : {192.168.1.1}

DNSDomain        :

ServiceName      : abcexpress

Description      : Intel(R) 8123LM Gigabit Network Connection

Index            : 7

In my case, I just needed the actual IPv4 address, so, I used this approach:

(Get-WmiObject win32_networkadapterconfiguration -Filter ipenabled = "true").IPAddress |

Where-Object {$_ -as [System.Version]}

The beauty here is that you can zero in on a specific property (the results of wrapping in parentheses and using .IPAddress) then pipelining to a Where-Object cmdlet to test if the value can be typed as a [System.Version] object. Since IPv4 addresses pass as [System.Version] objects, this is a foolproof way to find an IP address without having to parse a lot of data or use complex expressions.

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