PING rt.ac.th (104.21.112.1) 56(84) bytes of data.
64 bytes from 104.21.112.1 (104.21.112.1): icmp_seq=1 ttl=60 time=6.04 ms
64 bytes from 104.21.112.1 (104.21.112.1): icmp_seq=2 ttl=60 time=4.19 ms
64 bytes from 104.21.112.1 (104.21.112.1): icmp_seq=3 ttl=60 time=4.25 ms

--- rt.ac.th ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 4.194/4.828/6.040/0.858 ms