Rewriting User-Name attribute without rewrite_attr

I did some more poking around and finally found some threads on using rewrite_attr to rewrite usernames to include a realm. Unfortunately, this is not scalable enough for our needs. We will have several thousand users, and I hate to image what the ardiusd.conf file will look like if most

Hello! (and help!)

Hello, We've been working with FreeRadius 0.9.3 and have a configuration question that doesn't seem to be covered by the Hassell's RADIUS book, the docs that come with the distribution or in a google search of the archives. Maybe I just didn't look in the right places, in which case a