PING teratec.co.kr (106.10.100.91) 56(84) bytes of data.
64 bytes from 106.10.100.91 (106.10.100.91): icmp_seq=1 ttl=44 time=255 ms
64 bytes from 106.10.100.91 (106.10.100.91): icmp_seq=2 ttl=44 time=259 ms
64 bytes from 106.10.100.91 (106.10.100.91): icmp_seq=3 ttl=44 time=250 ms

--- teratec.co.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 250.049/255.083/259.648/3.932 ms