Get IP Address of Client Machine

Sometime as par business requirement we need to have client machine IP address mean get the IP address of that client machine from which user is visited your web site.

To achieve this use below line of code:

        string IPAddress = string.Empty;
        IPAddress = Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
        if (IPAddress == "" || IPAddress == null)
            IPAddress = Request.ServerVariables["REMOTE_ADDR"];
 
        Response.Write("<b>Your Machine IP Address is: </b>" + IPAddress);

Output:

Image 1.