PING www.rskv.co.kr (175.112.27.149) 56(84) bytes of data.
64 bytes from 175.112.27.149 (175.112.27.149): icmp_seq=1 ttl=48 time=274 ms
64 bytes from 175.112.27.149 (175.112.27.149): icmp_seq=2 ttl=48 time=273 ms
64 bytes from 175.112.27.149 (175.112.27.149): icmp_seq=3 ttl=48 time=273 ms

--- www.rskv.co.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 273.307/273.891/274.552/0.511 ms