PING www.sirinhospital.go.th (172.67.197.246) 56(84) bytes of data.
64 bytes from 172.67.197.246 (172.67.197.246): icmp_seq=1 ttl=60 time=5.25 ms
64 bytes from 172.67.197.246 (172.67.197.246): icmp_seq=2 ttl=60 time=4.07 ms
64 bytes from 172.67.197.246 (172.67.197.246): icmp_seq=3 ttl=60 time=3.98 ms

--- www.sirinhospital.go.th ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 3.986/4.438/5.252/0.581 ms