PING home.konkuk.ac.kr (202.30.38.46) 56(84) bytes of data.
64 bytes from sdl.konkuk.ac.kr (202.30.38.46): icmp_seq=1 ttl=241 time=255 ms
64 bytes from sdl.konkuk.ac.kr (202.30.38.46): icmp_seq=2 ttl=241 time=253 ms
64 bytes from sdl.konkuk.ac.kr (202.30.38.46): icmp_seq=3 ttl=241 time=253 ms

--- home.konkuk.ac.kr ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2078ms
rtt min/avg/max/mdev = 253.467/254.367/255.777/1.009 ms