PING 4vn.eu (117.6.160.34) 56(84) bytes of data.
64 bytes from mail.vcm.com.vn (117.6.160.34): icmp_seq=1 ttl=246 time=273 ms
64 bytes from mail.vcm.com.vn (117.6.160.34): icmp_seq=2 ttl=246 time=271 ms
64 bytes from mail.vcm.com.vn (117.6.160.34): icmp_seq=3 ttl=246 time=270 ms

--- 4vn.eu ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 270.894/271.686/273.137/1.190 ms