PING kcaer.re.kr (112.165.209.227) 56(84) bytes of data.
64 bytes from 112.165.209.227 (112.165.209.227): icmp_seq=1 ttl=56 time=255 ms
64 bytes from 112.165.209.227 (112.165.209.227): icmp_seq=2 ttl=56 time=252 ms
64 bytes from 112.165.209.227 (112.165.209.227): icmp_seq=3 ttl=56 time=252 ms

--- kcaer.re.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 252.193/253.380/255.741/1.719 ms