PING underground-www.pinmer.cn (154.212.81.241) 56(84) bytes of data.
64 bytes from 154.212.81.241 (154.212.81.241): icmp_seq=1 ttl=39 time=269 ms
64 bytes from 154.212.81.241 (154.212.81.241): icmp_seq=2 ttl=39 time=268 ms
64 bytes from 154.212.81.241 (154.212.81.241): icmp_seq=3 ttl=39 time=268 ms

--- underground-www.pinmer.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 268.686/268.887/269.281/0.278 ms