PING www.joypc.or.kr (121.179.214.68) 56(84) bytes of data.
64 bytes from 121.179.214.68 (121.179.214.68): icmp_seq=1 ttl=57 time=247 ms
64 bytes from 121.179.214.68 (121.179.214.68): icmp_seq=2 ttl=57 time=246 ms
64 bytes from 121.179.214.68 (121.179.214.68): icmp_seq=3 ttl=57 time=246 ms

--- www.joypc.or.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 246.413/246.983/247.570/0.472 ms