P Multicast aP Sending-same as before Receiving -two new operations Join -IP-Multicast-Group(group-address, interface) Leave-IP-Multicast-Group(group-address, interface) Receive multicast packets for joined groups via normal IP-Receive operation Implemented using socket options Lecture11:10-3-2006Lecture 11: 10-3-2006 11 IP Multicast API • Sending – same as before • Receiving – two new operations • Join-IP-Multicast-Group(group-address, interface) • Leave-IP-Multicast-Group(group-address, interface) • Receive multicast packets for joined groups via normal IP-Receive operation • Implemented using socket options