I've setup coovachilli - freeradius on ubuntu box and works fine.

I wan't to give access to users without authentication. Just to land on welcome page and consider authondicated.
Is it possible to accomplise that? In other words, is it possible to have a predifined username and password into freeradius and force each new user, after he get an ip from coovachilli to automatically authondicated by these credentials without a login form?

I know how to setup freeradius for simultaneous users but I haven't managed to do the rest.

Thanks in advanced!