Icecast - Jan 2008 - allow access to icecast stream for only one ip

Hi guys ,

I have a question :

I have 2 server , one in my Lan that with oggfwd and ffmpeg2theroa sends 
video stream to another server in internet that send this stream to the 
web page on the same server.
I want that the user can see the streams only from the webpage , so I 
must to disable the connection to the all ip .I must only to allow the 
server'ip .

How i can select to the allowed ip to connect to icecast?

Thansk a lot


BR


Pierpaolo