Active/Primary Network Adapter

Is there a way to tell which NIC is "active" in a PC? I am working on
writing some powershell code to sweep through my network either
through AD or through a text file (haven't added that yet) to tell me
which machines are using DHCP and what the IPs for them are and which
if any machines are using hardcoded IPs nad Gateways and such.

I have seen a few machines that the onboard nic has either stopped
working and a new NIC has been installed or where someone has
previously put in a secondary nic and I want to make sure I am getting
the one that they are actually using.

Hope that makes sense.

Thanks.

Tim

This piece of code will help you start:

$NICs = Get-WMIObject Win32_NetworkAdapterConfiguration -ComputerName
$comp -Filter "IPEnabled='TRUE'"
foreach ($NIC in $NICs) {
$NIC | select
DNSHostName,DNSDomain,IPAddress,IPSubnet,DefaultIPGateway,DHCPEnabled,Description,MACAddress
}

The crucial part is the filter "IPEnabled='TRUE'" which will give you
"alive" NICs. If NIC has more than one IP address assigned, property
IPAddress will be an array of IP addresses. You can do $nic | fl * to
find is there any other property that you might find helpful.

-aleksandar
http://powershellers.blogspot.com


On May 23, 2:24*am, TimParker <tim...@xxxxxx> wrote:

Perfect. I just ran this on my workstation at home that currently is
not in a domain and got a couple errors based on that (which I
expected to see)

the IPEnabled is the magic field I was looking for! Thanks for the
info!

Tim


On May 23, 3:29 am, alexandair <alexand...@xxxxxx> wrote: