PING surasak.ac.th (124.156.246.20) 56(84) bytes of data.
64 bytes from 124.156.246.20 (124.156.246.20): icmp_seq=1 ttl=57 time=190 ms
64 bytes from 124.156.246.20 (124.156.246.20): icmp_seq=2 ttl=57 time=190 ms
64 bytes from 124.156.246.20 (124.156.246.20): icmp_seq=3 ttl=57 time=190 ms

--- surasak.ac.th ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2006ms
rtt min/avg/max/mdev = 190.467/190.597/190.766/0.125 ms