[Flow] Authentication Issue

[The Social Nerd]

Hi,
I am implementing a web application with the latest beta of Flow3 for the first time. I read a lot in the documentation especially the security chapter more than once. But I am not really sure, how it works. I've set the provider  'PersistedUsernamePasswordProvider' and an entryPoint with options. The login itself works as expected. But if I make a request to another controller without previous login, there is no redirect to my entrypoint. Did I forget an important aspect? 

Best,
Pascal

PS: I posted this also on the mailling list, but no response until now.