ICODEBROKER

■ WebClient 클래스 : 외부 IP 주소 구하기

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using System.Net;

using System.Text;

#region 외부 IP 주소 구하기 - GetExternalIPAddress()

/// <summary>

/// 외부 IP 주소 구하기

/// </summary>

/// <returns>외부 IP 주소</returns>

public string GetExternalIPAddress()

{

    string checkURL = "http://checkip.dyndns.org/";

    WebClient webClient = new WebClient();

    UTF8Encoding encoding = new UTF8Encoding();

    string html = encoding.GetString(webClient.DownloadData(checkURL));

    html = html.Substring(html.IndexOf("Current IP Address:"));

    html = html.Substring(0, html.IndexOf("</body>"));

    html = html.Split(':')[1].Trim();

    IPAddress ipAddress = null;

    ipAddress = IPAddress.Parse(html);

    return ipAddress.ToString();

}

#endregion

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