Become member of IP multicast group
The multiaddr parameter should be in the range 239.0.0.0-239.255.255.255. See https://www.iana.org/assignments/multicast-addresses/multicast-addresses.xml#multicast-addresses-12 and https://www.iana.org/assignments/ipv6-multicast-addresses/ipv6-multicast-addresses.xhtml
See Implementation
Become member of IP multicast group
The multiaddr parameter should be in the range 239.0.0.0-239.255.255.255. See https://www.iana.org/assignments/multicast-addresses/multicast-addresses.xml#multicast-addresses-12 and https://www.iana.org/assignments/ipv6-multicast-addresses/ipv6-multicast-addresses.xhtml