PING fossa.kr (61.100.184.220) 56(84) bytes of data.
64 bytes from m220.mailplug.co.kr (61.100.184.220): icmp_seq=1 ttl=58 time=258 ms
64 bytes from m220.mailplug.co.kr (61.100.184.220): icmp_seq=2 ttl=58 time=257 ms
64 bytes from m220.mailplug.co.kr (61.100.184.220): icmp_seq=3 ttl=58 time=257 ms

--- fossa.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2819ms
rtt min/avg/max/mdev = 257.162/257.748/258.861/0.981 ms