PING smartdevice.kr (185.53.177.54) 56(84) bytes of data.
64 bytes from 185.53.177.54 (185.53.177.54): icmp_seq=1 ttl=55 time=17.8 ms
64 bytes from 185.53.177.54 (185.53.177.54): icmp_seq=2 ttl=55 time=14.9 ms
64 bytes from 185.53.177.54 (185.53.177.54): icmp_seq=3 ttl=55 time=15.0 ms

--- smartdevice.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 14.984/15.964/17.894/1.368 ms