mcast4-pktfld01
Verify that the kernel is not crashed when joining a IPv4 multicast
group a single socket, then receiving a large number of UDP packets
at the socket
mcast4-pktfld02
Verify that the kernel is not crashed when joining plural IPv4
multicast groups on separate sockets, then receiving a large number
of UDP packets at the each socket
mcast6-pktfld01
Verify that the kernel is not crashed when joining a IPv6 multicast
group a single socket, then receiving a large number of UDP packets
at the socket
mcast6-pktfld02
Verify that the kernel is not crashed when joining plural IPv6
multicast groups on separate sockets, then receiving a large number
of UDP packets at the each socket