PING dk.cul.kr (110.45.146.30) 56(84) bytes of data.
64 bytes from 110.45.146.30 (110.45.146.30): icmp_seq=1 ttl=54 time=243 ms
64 bytes from 110.45.146.30 (110.45.146.30): icmp_seq=2 ttl=54 time=243 ms
64 bytes from 110.45.146.30 (110.45.146.30): icmp_seq=3 ttl=54 time=243 ms

--- dk.cul.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 243.432/243.537/243.738/0.587 ms