How to get MAC id of system

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How can i get MAC ID of system

Posted 19-Apr-12 3:22am

sangel1989

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Prasad_Kulkarni · Accepted Answer · 2012-04-19T03:23:00

Try this:

C#

private string GetMac()
{
    string Mac = string.Empty;
    ManagementClass MC = new ManagementClass("Win32_NetworkAdapter");
    ManagementObjectCollection MOCol = MC.GetInstances();
    foreach (ManagementObject MO in MOCol)
        if (MO != null)
        {
           if (MO["MacAddress"] != null)
                    {
                         Mac = MO["MACAddress"].ToString();
                         if (Mac != string.Empty)
                             break;
                    }
        }
    return Mac;
}

Jαved · Accepted Answer · 2012-04-19T03:30:00

Hi,
following is the code-

returns the NIC with the fastest speed that also has a valid Mac Address.

C#

private string GetMacAddress()
    {
        const int MIN_MAC_ADDR_LENGTH = 12;
        string macAddress = "";
        long maxSpeed=-1;

        foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces())
        {
            log.Debug("Found MAC Address: " + nic.GetPhysicalAddress().ToString() + " Type: " + nic.NetworkInterfaceType );
            string tempMac = nic.GetPhysicalAddress().ToString();
            if (nic.Speed > maxSpeed && !String.IsNullOrEmpty(tempMac) && tempMac.Length >= MIN_MAC_ADDR_LENGTH )
            {
                log.Debug("New Max Speed = " + nic.Speed + ", MAC: " + tempMac );
                maxSpeed = nic.Speed;
                macAddress = tempMac;
            }
        }
        return macAddress;
    }

Just returns the first one.

C#

private string GetMacAddress()
    {
        string macAddresses = "";

        foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces())
        {
            if (nic.OperationalStatus == OperationalStatus.Up)
            {
                macAddresses += nic.GetPhysicalAddress().ToString();
                break;
            }
        }
        return macAddresses;
    }

How to get MAC id of system

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