Disable-NetworkCard.ps1

1. <# 
2. .SYNOPSIS 
3.     Disables active network cards 
4. .DESCRIPTION 
5.     This script looks at each network card that is currently IP enabled, and 
6.     disables it by releasing the DHCP Lease. To re-enable the network interrace, 
7.     you just run IPCONFIG /RENEW. 
8.      
9.     This script is an MSDN Sample, rewritten using PowerShell 
10. .NOTES 
11.     File Name  : Disable-NetworkCard.ps1 
12.     Author     : Thomas Lee - tfl@psp.co.uk 
13.     Requires   : PowerShell V2 CTP3 
14. .LINK 
15.     PowerShell script posted to: 
16.        http://pshscripts.blogspot.com/2009/02/disable-networkcardps1.html
17.     Original MSDN Sample at: 
18.        http://msdn.microsoft.com/en-us/library/aa394595(VS.85).aspx 
19. .EXAMPLE 
20.     PSH [C:\foo]: .\Disable-NetworkCard.ps1 
21.     Releasing lease on: [00000006] Broadcom NetXtreme Gigabit Ethernet 
22.     Releasing lease on: [00000012] Microsoft Virtual Network switch Adapte 
23. #> 
24.    
25. ### 
26. #  Starting Script 
27. ### 
28.   
29. $Computer = "." 
30. $net = Get-WMIObject -class Win32_NetworkAdapterConfiguration -ComputerName $computer 
31. $netenabled = $net | where {$_.IPenabled} 
32. foreach ($NetCard in $netenabled) { 
33.     "Releasing lease on: {0}" -f $netcard.caption 
34.     $netcard.ReleaseDHCPLease() 
35. } 
36. # End of Script 

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