SAD SAD can support multicast SAs, if manually configured Outbound multicast SA has the same structure as unicast SA source = sender; destination = multicast address Inbound multicast SA must be configured with the source address of each peer authorized to transmit on the multicast SA SPI value for a multicast SA is provided by a multicast group controller, not by the receiver SAD structure already accommodates multiple IP source addresses But, do not currently have an automated way to create a multicast SAD entry |