Get User's IP Address

Question

How can I get the current visitors IP address?

Answer 1

Try this to get external ip address of user..

public static string getExternalIp()
    {
        try
        {

            string externalIP;
            externalIP = (new WebClient()).DownloadString("http://checkip.dyndns.org/");
            externalIP = (new Regex(@"\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}"))
                         .Matches(externalIP)[0].ToString();
            return externalIP;
        }
        catch { return null; }
    }