PING hcmiu.edu.vn (125.212.138.22) 56(84) bytes of data.
64 bytes from dynamic-ip-adsl.viettel.vn (125.212.138.22): icmp_seq=1 ttl=57 time=258 ms
64 bytes from dynamic-ip-adsl.viettel.vn (125.212.138.22): icmp_seq=2 ttl=57 time=258 ms
64 bytes from dynamic-ip-adsl.viettel.vn (125.212.138.22): icmp_seq=3 ttl=57 time=257 ms

--- hcmiu.edu.vn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 257.830/258.116/258.268/0.461 ms