ASP.NET:获取外部IP地址

ASP.NET:获取外部IP地址

问题描述:

我开发的网站。我需要让网站访问者的IP。
我尝试使用请求,但只有内部IP:

I developed site. I need to get IP of site visitors. I try to use Request, but it have only internal IP:

Response.Write(Request.ServerVariables["REMOTE_ADDR"]);

我看着在服务器变量集合中的所有键 - 相同的结果:

I looked all keys in Server Variables collection - the same result:

foreach (string var in Request.ServerVariables)
{
    Response.Write(Request[var]);
}

我怎样才能获得外部IP地址?

How can I get external IP address?

您可以用它来获得外部(公共)IP地址。

You can use it to get External (public) IP Address..

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; }
    }