justin@Justin:~$ ping 10.194.45.254 PING 10.194.45.254 (10.194.45.254) 56(84) bytes of data. 64 bytes from 10.194.45.254: icmp_seq=1 ttl=64 time=1.45 ms 64 bytes from 10.194.45.254: icmp_seq=2 ttl=64 time=1.12 ms ^C --- 10.194.45.254 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1002ms rtt min/avg/max/mdev = 1.120/1.287/1.455/0.171 ms
mdev = ((x1 - _x) + (x2 - _x) )/ 2
Wait interval seconds between sending each packet. The default is to wait for one second between each packet normally, or not to wait in flood mode. Only super-user may set interval to values less 0.2 seconds.
ECHO_REQUEST packet and displays the route buffer on returned packets. Note that the IP header is only large enough for nine such routes. Many hosts ignore or discard this option.