PING kunsan.ac.kr (175.106.84.220) 56(84) bytes of data.
64 bytes from 175.106.84.220 (175.106.84.220): icmp_seq=1 ttl=50 time=251 ms
64 bytes from 175.106.84.220 (175.106.84.220): icmp_seq=2 ttl=50 time=249 ms
64 bytes from 175.106.84.220 (175.106.84.220): icmp_seq=3 ttl=50 time=249 ms

--- kunsan.ac.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 249.115/249.965/251.647/1.189 ms