iperf to multicast addresses

1.Add multicast addresses to all sta(AP and STA connected) as below

        route add -net 224.0.0.0/4 dev eth0

2.At server

                Iperf –s –u –B 224.0.0.13 –I 1

3.client side

                Iperf –c 224.0.0.13 –u 1 1000 –T 5 –I 1