PING dorm.postech.ac.kr (175.212.48.2) 56(84) bytes of data.
64 bytes from 175.212.48.2 (175.212.48.2): icmp_seq=1 ttl=57 time=246 ms
64 bytes from 175.212.48.2 (175.212.48.2): icmp_seq=2 ttl=57 time=243 ms
64 bytes from 175.212.48.2 (175.212.48.2): icmp_seq=3 ttl=57 time=243 ms

--- dorm.postech.ac.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 243.598/244.565/246.317/1.241 ms