Yes it does exist. Somewhere.
I’m currently playing with FreeRadius to try to get it to send L2TP attributes to the NAS that makes the request if the realm specified is not “the usual” one.
This is proving a little tricky – if the user doesn’t exist in the local database, everything’s fine. Service-Type is set to Outbound-User.
However, irritatingly if userpart exists in the local database, Service-Type is set to Framed-User. This is clearly a problem. I need to fix this.