Read MAC address using ASP.NET

Introduction:

In this article i have explained how to get MAC Address using asp.net. It is sometimes required to read the MAC address of the user to know from where the visitors are coming to your website or for other purpose as per application requirement such as to restrict user of particular Mac Address or to provide access only to specific user with specific MAC address.



Implementation: Let's understand by practical implementation.

ASP.NET(C#) Code to get mac address of the client

    protected void Page_Load(object sender, EventArgs e)

    {

            string MacAddress = GetMACAddress();

     Response.Write("Mac addess is : " + MacAddress);

    }

public string GetMACAddress()

    {

        ManagementClass mc = newManagementClass("Win32_NetworkAdapterConfiguration");

        ManagementObjectCollection moc = mc.GetInstances();

        string MACAddress = String.Empty;

        foreach (ManagementObject mo in moc)

        {

            if (MACAddress == String.Empty) 

            {

                if ((bool)mo["IPEnabled"] == true) MACAddress = mo["MacAddress"].ToString();

            }

            mo.Dispose();

        }

        MACAddress = MACAddress.Replace(":", "");

        return MACAddress;

    }

VB.Net Code to get/read mac address of the client

  Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)Handles Me.Load

        Dim MacAddress As String = GetMACAddress()

        Response.Write("Mac addess is : " & MacAddress)

    End Sub

    Public Function GetMACAddress() As String

        Dim mc As New ManagementClass("Win32_NetworkAdapterConfiguration")

        Dim moc As ManagementObjectCollection = mc.GetInstances()

        Dim MACAddress As String = [String].Empty

        For Each mo As ManagementObject In moc

            If MACAddress = [String].Empty Then

                If CBool(mo("IPEnabled")) = True Then

                    MACAddress = mo("MacAddress").ToString()

                End If

            End If

            mo.Dispose()

        Next

        MACAddress = MACAddress.Replace(":", "")

        Return MACAddress

    End Function