PING www.datalogger.co.kr (158.247.254.59) 56(84) bytes of data.
64 bytes from 158-247-254-59.constant.com (158.247.254.59): icmp_seq=1 ttl=56 time=272 ms
64 bytes from 158-247-254-59.constant.com (158.247.254.59): icmp_seq=2 ttl=56 time=271 ms
64 bytes from 158-247-254-59.constant.com (158.247.254.59): icmp_seq=3 ttl=56 time=271 ms

--- www.datalogger.co.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 271.190/271.632/272.345/0.787 ms