获取客户端IP地址

Question

  我获取客户端地址  在本地测试是好錒 但服务器上却获取到自己服务器地址了
是什么原因錒，大家帮我看下···
  我获取IP的2种方法：
  1.      public static string GetIPAddress()
        {            string user_IP = string.Empty;
            if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null)
            {
                if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null)
                {
                    user_IP = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
                }
                else
                {
                    user_IP = System.Web.HttpContext.Current.Request.UserHostAddress;
                }
            }
            else
            {
                user_IP = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();
            }
            return user_IP;
        }
2.info.IP = this.Page.Request.UserHostAddress.ToString();

Answer 1

ISA防火墙设置问题?
http://www.cnblogs.com/cnaspnet/archive/2008/07/05/1236181.html

Answer 2

public static string GetClientIP(HttpRequest request)
        {
            string ipAddress;
            string http_x_forwarded_for = request.ServerVariables["HTTP_X_FORWARDED_FOR"];
            if (http_x_forwarded_for == null || http_x_forwarded_for == "" || http_x_forwarded_for.IndexOf("unknown") > 0)
            {
                ipAddress = request.ServerVariables["REMOTE_ADDR"];
            }
            else if (http_x_forwarded_for.IndexOf(",") > 0)
            {
                ipAddress = http_x_forwarded_for.Substring(0, http_x_forwarded_for.IndexOf(",") - 1);
            }
            else if (http_x_forwarded_for.IndexOf(";") > 0)
            {
                ipAddress = http_x_forwarded_for.Substring(0, http_x_forwarded_for.IndexOf(";") - 1);
            }
            else
            {
                ipAddress = http_x_forwarded_for;
            }
            return ipAddress;//.Substring(1,30);
        }

Answer 3

http://topic.csdn.net/u/20090617/11/8f0432b6-84ee-49da-a55f-86b3d343ab8b.html?85747

Answer 4

网上有个免费的获取客户端ip地址的webservice,你用它就OK了。