PING khu.ac.kr (175.106.86.97) 56(84) bytes of data.
64 bytes from 175.106.86.97 (175.106.86.97): icmp_seq=1 ttl=50 time=264 ms
64 bytes from 175.106.86.97 (175.106.86.97): icmp_seq=2 ttl=50 time=263 ms
64 bytes from 175.106.86.97 (175.106.86.97): icmp_seq=3 ttl=50 time=263 ms

--- khu.ac.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 263.836/264.044/264.414/0.262 ms