Show-NetworkInterfaces1.ps1

1. <# 
2. .SYNOPSIS 
3.     This script displays the NICs in a system and their physical
4.     address. 
5. .DESCRIPTION 
6.     This script is a MSDN Sample recoded in PowerShell. The script
7.     first gets all the interfaces on the system, then loops through
8.     them displaying more information about them to the console.
9.     Note the use of Console.Write in the loop at the end. Not quite
10.     sure a better PowerShell equivalent other than creating a
11.     string with all the bytes, then displaying that string. 
12. .NOTES 
13.     File Name  : Show-NetworkInterfaces1.ps1 
14.     Author     : Thomas Lee - tfl@psp.co.uk 
15.     Requires   : PowerShell Version 2.0 
16. .LINK 
17.     This script posted to: 
18.         http://www.pshscripts.blogspot.com 
19.     MSDN sample posted to: 
20.         http://msdn.microsoft.com/en-us/library/system.net.networkinformation.physicaladdress.aspx    
21. .EXAMPLE 
22.     PSH[c:\foo]> .\Show-Networkinterfaces1.ps1 
23. Interface information for Cookham8.cookham.net      
24.   Number of interfaces .................... : 2 
25. Broadcom NetXtreme 57xx Gigabit Controller 
26. ========================================== 
27.   Interface type .......................... : Ethernet 
28.   Physical address ........................ : 00-1E-4F-95-5C-C4  
29.  
30. Microsoft ISATAP Adapter 
31. ======================== 
32.   Interface type .......................... : Tunnel 
33.   Physical address ........................ : 00-00-00-00-00-00-00-E0  
34.      
35. #> 
36.      
37. # Get computer IP global properties 
38. $ComputerProperties = [System.Net.NetworkInformation.IpGlobalProperties]::GetIPGlobalProperties() 
39.  
40. # Get the nics in this system 
41. $nics = [System.Net.NetworkInformation.NetworkInterface]::GetAllNetworkInterfaces() 
42.  
43. # Show information header 
44. "Interface information for {0}.{1}     " -f $ComputerProperties.HostName, $ComputerProperties.DomainName 
45.   
46. # Iterate through the NIcs ans outout per nic info 
47. # First, check if interfaces are found 
48.  if (!$nics -OR $nics.Length -LT 1) 
49.     { 
50.         "  No network interfaces found." 
51.         return 
52.     } 
53.  
54. # Here print out number of interfaces and interface details 
55. [System.Console]::WriteLine("  Number of interfaces .................... : {0}" -f $nics.Length) 
56. Foreach ($adapter in $nics) 
57.     { 
58.         $properties = $adapter.GetIPProperties();    
59.         " ";"" 
60.         "{0}" -F $adapter.Description 
61.         "=" * $adapter.Description.Length 
62.         "  Interface type .......................... : {0}" -F $adapter.NetworkInterfaceType 
63.         [System.Console]::Write("  Physical address ........................ : ") 
64.         $address = $adapter.GetPhysicalAddress(); 
65.         $bytes = $address.GetAddressBytes() 
66.         for($i = 0; $i -lt $bytes.Length; $i++) 
67.         { 
68.             # Display the physical address in hexadecimal. 
69.             [system.Console]::Write("{0}" -f $bytes[$i].ToString("X2")) 
70.             # Insert a hyphen after each byte, unless we are at the end of the  
71.             # address. 
72.             if ($i -NE $bytes.Length -1) 
73.             { 
74.                  [System.Console]::Write("-") 
75.             } 
76.         } 
77.         [System.Console]::WriteLine() 
78.     } 

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