Untitled

ASP.NET MVC 4, Route /News/5
public class NewsController : BaseController
{
    //
    // GET: /News

    public ActionResult Index(int id)
    {
        return View();
    }

}

routes.MapRoute(
            "News", // Route name
            "{controller}/{action}/{id}", // URL with parameters
            new { controller = "News", action = "Index", id = -1 } // Parameter defaults
        );

routes.MapRoute(
        "Index Action", // Route name
        {controller}/{id}", // URL with parameters
        new { controller = "News", action = "Index" },
        new {id= @"d+" }
    );

routes.MapRoute(
        "NewsAbbr", // Route name
        "{controller}/{id}", // URL with parameters
        new { controller = "News", action = "Index", id = -1 } // Parameter defaults
    );


    routes.MapRoute(
        "News", // Route name
        "{controller}/{action}/{id}", // URL with parameters
        new { controller = "News", action = "Index", id = -1 } // Parameter defaults
    );