PING poffice.hk (148.66.55.2) 56(84) bytes of data.
64 bytes from 148.66.55.2 (148.66.55.2): icmp_seq=1 ttl=59 time=227 ms
64 bytes from 148.66.55.2 (148.66.55.2): icmp_seq=2 ttl=59 time=227 ms
64 bytes from 148.66.55.2 (148.66.55.2): icmp_seq=3 ttl=59 time=227 ms

--- poffice.hk ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2000ms
rtt min/avg/max/mdev = 227.113/227.295/227.630/0.599 ms