Your multicast receivers are indirectly connected to an MX Series router. The receivers
need to join multicast group 18.104.22.168. What must be configured in IGMP to receive report
messages from receivers that are multiple hops away?
DVMRP protocol must be configured.
By default, IGMP accepts report messages from indirectly connected receivers.
Promiscuous mode must be enabled in IGMP.
Promiscuous mode must be disabled in IGMP.