PING energy.inha.ac.kr (165.246.40.107) 56(84) bytes of data.
64 bytes from 165.246.40.107: icmp_seq=1 ttl=119 time=261 ms
64 bytes from 165.246.40.107: icmp_seq=2 ttl=119 time=260 ms
64 bytes from 165.246.40.107: icmp_seq=3 ttl=119 time=260 ms

--- energy.inha.ac.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 7325ms
rtt min/avg/max/mdev = 260.018/260.501/261.338/0.836 ms