A transfer apparatus includes a control unit to execute control such that
one or more of received multicast packets are transferred to at least one
receiver, a storage unit to store the received multicast packets or the
one or more multicast packets to be transferred to the at least one
receiver, and a determining unit to determine whether transfer of the
stored multicast packet can be started when a multicast subscribe request
is received from the receiver. The control unit transfers the multicast
packet based on a determination result of the determining unit such that
the multicast packet which is to be first transferred to the at least one
is a head packet of a frame coded by a first coding technique which does
not require information of any other frames when the multicast packet is
decoded.