The VideoLAN Forums

I'm trying to multicast a video file, so for example, I can use the following:

/usr/local/bin/vlc --intf dummy -vvv video.avi --ttl 12 --sout udp:239.255.0.1

Then, I can watch the video using:

vlc udp:@239.255.0.1

Ok, but the problem is that it doesn't seem to do multicast. It seems to broadcast because the ethernet's output is full loaded and as far as I undertand, multicast won't send anything unless someone joins the group.

Any hints to force the multicast?

It does multicast (unless the destination Ethernet address is ff:ff:ff:ff:ff:ff). Your network equipment most likely broadcast due to its own limitations.