PING rskv.co.kr (180.92.99.42) 56(84) bytes of data.
64 bytes from 180.92.99.42 (180.92.99.42): icmp_seq=1 ttl=49 time=270 ms
64 bytes from 180.92.99.42 (180.92.99.42): icmp_seq=2 ttl=49 time=270 ms
64 bytes from 180.92.99.42 (180.92.99.42): icmp_seq=3 ttl=49 time=269 ms

--- rskv.co.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 269.077/269.930/270.560/0.755 ms