PING robotsurgeon.co.kr (220.90.201.155) 56(84) bytes of data.
64 bytes from samba.or.kr (220.90.201.155): icmp_seq=1 ttl=55 time=262 ms
64 bytes from samba.or.kr (220.90.201.155): icmp_seq=2 ttl=55 time=261 ms
64 bytes from samba.or.kr (220.90.201.155): icmp_seq=3 ttl=55 time=261 ms

--- robotsurgeon.co.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2153ms
rtt min/avg/max/mdev = 261.369/261.681/262.241/0.396 ms