1mcast4-pktfld01 2 Verify that the kernel is not crashed when joining a IPv4 multicast 3 group a single socket, then receiving a large number of UDP packets 4 at the socket 5 6mcast4-pktfld02 7 Verify that the kernel is not crashed when joining plural IPv4 8 multicast groups on separate sockets, then receiving a large number 9 of UDP packets at the each socket 10 11mcast6-pktfld01 12 Verify that the kernel is not crashed when joining a IPv6 multicast 13 group a single socket, then receiving a large number of UDP packets 14 at the socket 15 16mcast6-pktfld02 17 Verify that the kernel is not crashed when joining plural IPv6 18 multicast groups on separate sockets, then receiving a large number 19 of UDP packets at the each socket 20