Symfony2 default locale in routing

Question

I have a problem with routing and the internationalization of my site built with Symfony2.
If I define routes in the routing.yml file, like this:

exampl         


        

Answer 1

root:
    pattern: /
    defaults:
        _controller: FrameworkBundle:Redirect:urlRedirect
        path: /en
        permanent: true

How to configure a redirect to another route without a custom controller