获取客户端的IP为什么获得的都是服务器的IP?

Question

Request.UserHostAddress.ToString();这种方法无法检测通过代理上网的机器的ip地址。但你可以通过别的方法来实现。

Answer 1

        #region 穿过代理服务器取远程用户真实IP地址
        /// <summary>
        /// 穿过代理服务器取远程用户真实IP地址
        /// </summary>
        /// <returns></returns>
        public static string GetIP()
        {
            try
            {
                string IP;
                if (HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null)
                {
                    IP = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
                }
                else
                {
                    IP = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();
                }
                IP = IP.Replace("::1", "127.0.0.1");                return IP;
            }
            catch
            {
                return "0.0.0.0";
            }
        }
        #endregion