c# 怎么获取自己的IP地址

1、aspx页面，asp.net项目的页面
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="ip.aspx.cs" Inherits="MvcAppTest.ip" %>
<script language="c#" runat="server">
    /// 获取客户端IP地址
    /// </summary>
    /// <returns></returns>
    public static string GetIPAddress()
    {
        string userIP = "未获取用户IP";  

           try  
           {  
              if (System.Web.HttpContext.Current == null  
          || System.Web.HttpContext.Current.Request == null  
           || System.Web.HttpContext.Current.Request.ServerVariables == null)  
                   return "";  
  
               string CustomerIP = "";  
  
               //CDN加速后取到的IP   
               CustomerIP = System.Web.HttpContext.Current.Request.Headers["Cdn-Src-Ip"];  
               if (!string.IsNullOrEmpty(CustomerIP))  
               {  
                   return CustomerIP;  
               } 
  
               CustomerIP = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];  
  
  
               if (!String.IsNullOrEmpty(CustomerIP))  
                   return CustomerIP;  
  
               if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null)  
               {  
                   CustomerIP = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];  
                   if (CustomerIP == null)  
                       CustomerIP = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];  
              }  
               else  
               {  
                   CustomerIP = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];  
  
               }    
               if (string.Compare(CustomerIP, "unknown", true) == 0)  
                  return System.Web.HttpContext.Current.Request.UserHostAddress;  
               return CustomerIP;  
           }  
           catch { }  
  
           return userIP;
    }

</script>
 
<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
     <%Response.Write(GetIPAddress()); %>
    </div>
    </form>
</body>
</html>
c# 怎么获取自己的IP地址

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