PING gsnobok.or.kr (58.235.246.21) 56(84) bytes of data.
64 bytes from 58.235.246.21 (58.235.246.21): icmp_seq=1 ttl=48 time=262 ms
64 bytes from 58.235.246.21 (58.235.246.21): icmp_seq=2 ttl=48 time=259 ms
64 bytes from 58.235.246.21 (58.235.246.21): icmp_seq=3 ttl=48 time=259 ms

--- gsnobok.or.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 259.532/260.481/262.283/1.404 ms