仅带字符串ID的Url:asp.net 4.0 Webforms中的Url路由

我以前创建过这样的url

www.mydomain.com/brand/nikkon  using URL routing asp.net 4(webforms)

RouteTable.Routes.MapPageRoute("brandRoute","brand/{Name}","~/Viewbrand.aspx");

现在我想创建一个像这样的url

www.mydomain.com/nikkon    by using URL routing asp.net 4(webforms)

请帮忙

可选：是否可以使用urlrewriter.net使用：

RouteTable.Routes.MapPageRoute("brandRoute","/{Name}","~/Viewbrand.aspx");