asp.net如何获取客户端真实IP地址?

[netboygg]

我试过了 以下的都不行
都取到的是10开头的

public static string IPAddress
    {
        get
        {
            string result = String.Empty;

            result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
            if (result != null && result != String.Empty)
            {
                //可能有代理 
                if (result.IndexOf(".") == -1)    //没有“.”肯定是非IPv4格式 
                    result = null;
                else
                {
                    if (result.IndexOf(",") != -1)
                    {
                        //有“,”，估计多个代理。取第一个不是内网的IP。 
                        result = result.Replace(" ", "").Replace("'", "");
                        string[] temparyip = result.Split(",;".ToCharArray());
                        for (int i = 0; i < temparyip.Length; i++)
                        {
                            if (IsIPAddress(temparyip[i])
                                && temparyip[i].Substring(0, 3) != "10."
                                && temparyip[i].Substring(0, 7) != "192.168"
                                && temparyip[i].Substring(0, 7) != "172.16.")
                            {
                                return temparyip[i];    //找到不是内网的地址 
                            }
                        }
                    }
                    else if (IsIPAddress(result)) //代理即是IP格式 
                        return result;
                    else
                        result = null;    //代理中的内容 非IP，取IP 
                }

            }

            string IpAddress = (HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null && HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != String.Empty) ? HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] : HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];



            if (null == result || result == String.Empty)
                result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];

            if (result == null || result == String.Empty)
                result = HttpContext.Current.Request.UserHostAddress;

            return result;
        }

string ip = System.Net.IPAddress.Parse(System.Web.HttpContext.Current.Request.UserHostAddress);


System.Net.IPAddress ips = System.Net.IPAddress.Parse(System.Web.HttpContext.Current.Request.UserHostAddress);
        ip = ips.ToString();


        if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] == null)
            ip = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();
        else
            ip = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();


        if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null)
        {

            ip = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();

        }
        else
        {

            ip = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();

        }

[net105]

<script language="JavaScript">
function GetLocalIPAddr(){
var oSetting = null;
var ip = null;
try{
oSetting = new ActiveXObject("rcbdyctl.Setting");
ip = oSetting.GetIPAddress;
alert(ip);
if (ip.length == 0){
return "没有连接到Internet";
}
oSetting = null;
}catch(e){
return ip;
}
return ip;
}
alert(GetLocalIPAddr())
</script>

试试这个

[CXZ84]

string ClientIP=System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();

[yechd]

private static string GetClientIP()
        {
            string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

            if (null == result || result == String.Empty)
            {
                result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
            }

            if (null == result || result == String.Empty)
            {
                result = HttpContext.Current.Request.UserHostAddress;
            }

            return result;
        }

[llsen]

[chenyunkun2008]

参考一下

顺便帮我测试一下，，

[joyet_guochao]

protected void Page_Load(object sender, EventArgs e)
{
string hostname=Dns.GetHostName();
IPAddress[] ips = Dns.GetHostAddresses(hostname);
foreach (IPAddress ip in ips)
{
Response.Write(ip.ToString());
}
}
不过首先要导入using System.Net命名空间

[vrhero]

这问题问过无数次了...

我只能告诉你，除非你给每个客户端安装客户端ActiveX控件或类似的东西，否则没有100%确定能获取到的方法...这和ASP.NET无关，想知道原因去好好看看TCP/IP和HTTP的原理...

另外鉴于浏览器的安全性限制，即使你用ActiveX控件也不能保证100%确定能获取到...也就是说只存在理论上的可能，事实上是不可能的...

[iuhxq]

何必那么精确？

就一句：HttpContext.Current.Request.UserHostAddress

[chen_ya_ping]

楼主给你一个方法可能不是很好：
HttpWebRequest Wr = (HttpWebRequest)WebRequest.Create(" http://www.ip.cn/getip.php?action=getip&ip_url=XXX.XXX.XXX.XXX");
HttpWebResponse response = (HttpWebResponse)Wr.GetResponse();
Stream receiveStream = response.GetResponseStream();
StreamReader readStream = new StreamReader(receiveStream, Encoding.Default);
Response.Write(readStream.ReadToEnd());

response.Close();
readStream.Close();
那些代码中的XXX就是填写你得到的ip地址，那样提交给那个网站就可以得到真实的ip地址以及来至于哪里。

[brood108]

#region 穿过代理服务器获得Ip地址,如果有多个IP，则第一个是用户的真实IP，其余全是代理的IP，用逗号隔开
public static string getRealIp()
{
string UserIP;
if (HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null) //得到穿过代理服务器的ip地址
{

UserIP = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
}
else
{
UserIP = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();
}
return UserIP;
}
#endregion

[me_loong]

/// <summary>
/// 获得当前页面客户端的IP
/// </summary>
/// <returns>当前页面客户端的IP</returns>
public static string GetIP()
{


string result = String.Empty;

result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
if (string.IsNullOrEmpty(result))
{
result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
}

if (string.IsNullOrEmpty(result))
{
result = HttpContext.Current.Request.UserHostAddress;
}

if (string.IsNullOrEmpty(result) || !Utils.IsIP(result))
{
return "127.0.0.1";
}

return result;

}

[BossFriday]

这问题问过无数次了...

我只能告诉你，除非你给每个客户端安装客户端ActiveX控件或类似的东西，否则没有100%确定能获取到的方法...这和ASP.NET无关，想知道原因去好好看看TCP/IP和HTTP的原理...

另外鉴于浏览器的安全性限制，即使你用ActiveX控件也不能保证100%确定能获取到...也就是说只存在理论上的可能，事实上是不可能的...

[handsomyuan]

ClientScript.RegisterStartupScript(GetType(), "", "alert('回复评论失败！');", true);

[yigemingzi1024]

[li2012kui]

using System;
using System.Net;
using System.Web;

namespace Common
{
public class IPNetworking
{
/// <summary>
/// 取得客户端主机 IPv4 位址(通过DNS反查)
/// </summary>
/// <returns></returns>
public static string GetClientIPv4Address()
{
string ipv4 = String.Empty;

foreach (IPAddress ip in Dns.GetHostAddresses(GetClientIP()))
{
if (ip.AddressFamily.ToString() == "InterNetwork")
{
ipv4 = ip.ToString();
break;
}
}

if (ipv4 != String.Empty)
{
return ipv4;
}

// 原作使用 Dns.GetHostName 方法取回的是 Server 端信息，非 Client 端。
// 改写为利用 Dns.GetHostEntry 方法，由获取的 IPv6 位址反查 DNS 纪录，
// 再逐一判断何者为 IPv4 协议，即可转为 IPv4 位址。
foreach (IPAddress ip in Dns.GetHostEntry(GetClientIP()).AddressList)
//foreach (IPAddress ip in Dns.GetHostAddresses(Dns.GetHostName()))
{
if (ip.AddressFamily.ToString() == "InterNetwork")
{
ipv4 = ip.ToString();
break;
}
}

return ipv4;
}

/// <summary>
/// 取得客户端主机位址
/// </summary>
public static string GetClientIP()
{
if (null == HttpContext.Current.Request.ServerVariables["HTTP_VIA"])
{
return HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
}
else
{
return HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
}
}
}
}

[adandelion]

OOOOO