PING underground-www.51banqian.com (172.67.191.108) 56(84) bytes of data.
64 bytes from 172.67.191.108 (172.67.191.108): icmp_seq=1 ttl=59 time=4.92 ms
64 bytes from 172.67.191.108 (172.67.191.108): icmp_seq=2 ttl=59 time=4.29 ms
64 bytes from 172.67.191.108 (172.67.191.108): icmp_seq=3 ttl=59 time=4.53 ms

--- underground-www.51banqian.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 4.294/4.585/4.928/0.267 ms