PING zcube.kr (121.138.212.11) 56(84) bytes of data.
64 bytes from 121.138.212.11 (121.138.212.11): icmp_seq=1 ttl=57 time=243 ms
64 bytes from 121.138.212.11 (121.138.212.11): icmp_seq=2 ttl=57 time=241 ms
64 bytes from 121.138.212.11 (121.138.212.11): icmp_seq=3 ttl=57 time=242 ms

--- zcube.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 241.780/242.821/243.936/0.969 ms