list active directory subnets with powershell

sometimes it’s fun to do things the long way (not) and then do the equivalent in a shortcut fashion.

these are the steps i used to retrieve subnets from active directory.

 

first of all, let’s grab the forest.

$myForest = [System.DirectoryServices.ActiveDirectory.Forest]::GetCurrentForest()

 

now, we can get the list of sites names.

$myForest.Sites | Select-Object name

 

if we see a site name that we like, we can retrieve just that site name and the subnets associated with it.

$myForest.Sites | Where-Object { $_.Name -eq 'myCity' } | Select-Object Subnets

 

 

well, that’s probably not what you wanted unless you have such few subnets you can see the whole thing.  let’s pass that through the ExpandProperty feature of select-object.

$myForest.Sites | Where-Object { $_.Name -eq 'myCity' } | Select-Object -ExpandProperty Subnets

 

that’s better!