Get Mac address

[adenyer]

Hi

I need to get a unique identifier to a machine, I chose to use a MAC
address. The problem I am having is that the methods I have found on
the internet and through Google groups aren't sufficient for what I
require.

Option 1 - using WMI
Unfortunately I'm using Framework 1.1
http://groups.google.co.uk/group/mi...p/browse_thread/thread/df2e6e2a3183a4dd?hl=en

Option 2 - Using Send ARP
The machine isn't always connected to a network so it doesn't always
have an IP address, no IP no ARP packets.

Any help would be much appreciated.

 

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,


what is wrong with WMI ? it does work in 1.1 , use this code:

ManagementClass mc = new ManagementClass("Win32_NetworkAdapter");
foreach (ManagementObject mo in mc.GetInstances())
{
string macAddr = mo["MACAddress"] as string;
if ( macAddr != null && macAddr.Trim() != "" )
return macAddr.ToString();
}


Note that it does not work in win9X

 

[adenyer]

Windows Management Instrumentation ....

using System.Management;

...

ManagementClass mc = new ManagementClass("Win32_NetworkAdapter");

I had some trouble getting that code to work .....

error CS0234: The type or namespace name 'Management' does not exist in
the class or namespace 'System' (are you missing an assembly
reference?)

 

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

Windows Management Instrumentation ....

using System.Management;

..

ManagementClass mc = new ManagementClass("Win32_NetworkAdapter");

I had some trouble getting that code to work .....

error CS0234: The type or namespace name 'Management' does not exist in
the class or namespace 'System' (are you missing an assembly
reference?)

You have to include a reference to System.Management in "Add reference"
form the project menu

 

[adenyer]

I don't get what's the differenc between that and putting a using
statement in?

 

[adenyer]

Do'h school boy error, I see what I've done now.

Thanks for your help Ignacio.