PING dyu.edu.tw (163.23.1.72) 56(84) bytes of data.
64 bytes from www.dyu.edu.tw (163.23.1.72): icmp_seq=1 ttl=53 time=219 ms
64 bytes from www.dyu.edu.tw (163.23.1.72): icmp_seq=2 ttl=53 time=215 ms
64 bytes from www.dyu.edu.tw (163.23.1.72): icmp_seq=3 ttl=53 time=215 ms

--- dyu.edu.tw ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2907ms
rtt min/avg/max/mdev = 215.825/217.097/219.642/1.877 ms