Show Motion stream on multiple web page

I am running motion, and so far everything work nicely, I can access the stream on port 8081, without problem. Is there a way to show the stream of the same webcam on multiple port ? If yes, how ? I tried setting up this in motion.conf : stream_port 8081 stream_port 8082 But only the last port is reachable. How can both be reachable ?