As not all the devices connected to the switch need IPTV service, we can configure IGMP Snooping on the switch so that only host B and host C can receive the IPTV programs. Configure the IGMP version as v3 so that the switch can process IGMP messages of all versions. https://bookmarknap.com/story8522664/iptv-portugal-o-melhor-entretenimento-em-alta-defini%C3%A7%C3%A3o