asp.net 获取访问者ip结果取到的是本地局域网的ip

Question

/// <summary>
  /// 获取IP地址
  /// </summary>
  public static string IPAddress {
    get {
      string userIP;
      // HttpRequest Request = HttpContext.Current.Request;
      HttpRequest Request = HttpContext.Current.Request; // ForumContext.Current.Context.Request;
      // 如果使用代理，获取真实IP
      if (Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != "")
        userIP = Request.ServerVariables["REMOTE_ADDR"];
      else
        userIP = Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
      if (userIP == null || userIP == "")
        userIP = Request.UserHostAddress;
      return userIP;
    }
  }
  

我无论在哪里访问这个页面取到的ip都是10.22.0.254，本地局域网的ip。