PING www.goodteacn.com (172.67.166.173) 56(84) bytes of data.
64 bytes from 172.67.166.173 (172.67.166.173): icmp_seq=1 ttl=60 time=6.56 ms
64 bytes from 172.67.166.173 (172.67.166.173): icmp_seq=2 ttl=60 time=4.24 ms
64 bytes from 172.67.166.173 (172.67.166.173): icmp_seq=3 ttl=60 time=4.22 ms

--- www.goodteacn.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 4.221/5.008/6.560/1.100 ms