How to provide multicast broadcast from Raspberry Pi?

Question

Computer networks

Hello! There is a problem of playing a multicast video stream from Raspberry Pi.
The essence of the problem is as follows: if it is between a computer (with pre-installed Debian) and a Raspberry switch, then the multicast broadcast is successfully played on the computer. In the case of a direct connection from the Raspberry to the computer, there is no playback, although tcpdump shows the presence of packets. It is necessary to achieve multicast video playback in such a "configuration".
The problem is related to the IGMP protocol, since you need to "subscribe" the computer to broadcast a multicast video stream.

Answer 1

tcpdump shows packets

outgoing on the Raspberry, or incoming on the computer?
if there are bridges in the Raspberry or computer configuration,
try disabling igmp-snooping for them:
#echo "0" > /sys/devices/virtual/net/ br0 /bridge/multicast_snooping

Answer 2

Everything was elementary: I didn’t set up a network, between raspberries and a computer. Specified the default gateway (on the computer) as raspberi. And everything is fine)