PING rockfield.net (124.248.158.141) 56(84) bytes of data.
64 bytes from jbsrv111-141.jetboy.jp (124.248.158.141): icmp_seq=1 ttl=57 time=234 ms
64 bytes from jbsrv111-141.jetboy.jp (124.248.158.141): icmp_seq=2 ttl=57 time=233 ms
64 bytes from jbsrv111-141.jetboy.jp (124.248.158.141): icmp_seq=3 ttl=57 time=233 ms

--- rockfield.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2016ms
rtt min/avg/max/mdev = 233.487/233.972/234.847/0.734 ms