Identifying VLANs in WMI

[Wayne Gault]

Hi my question is, where can I find VLAN information in WMI?

Scenario is

Take these 80 servers
Enable the nics that are in this list of VLANs

Thanks
Wayne

[Adam Driscoll]

Wayne,

It looks like there isn't a WMI class that contains the WMI information you need. According to this TechNet post: http://social.technet.microsoft.com/Forums/en-US/winserverManagement/thread/839ef0c0-cd3b-473d-bc8a-bf26f65edf52/

Although there isn't a class or property there is a WMI registry provider that you could use to query the registry values through WMI. This is described in this post. http://itknowledgeexchange.techtarget.com/powershell/wmi-and-the-registry/

This should allow you to access the servers via WMI and query the registry for the VLAN information. 

Hope this leads you in the right direction!

Adam

[Steven Murawski]

Wayne, 

It depends on where the VLAN information is being configured for the NIC.  Is the NIC handling the VLAN tagging?  Is this a physical or virtual machine?  If virtual, which virtualization platform?

Windows (by default) does not support vlan tagging, but some NIC vendors do with their proprietary NIC configuration software.

Some of those vendors provide an API to access that information (WMI or otherwise) but that is going to vary based on vendor.

Hypervisors allow for virtual NICs to have their traffic tagged for a particular vlan, but again where that information is stored will vary by vendor.

Steve

--
Steven Murawski

Microsoft MVP - PowerShell
http://blog.usepowershell.com/