sends ICMP echo requests to a network
(which has the syntax accepted by
The target host, if up, should send a corresponding reply.
By default, one line is printed for each reply,
containing the sequence number (starting at 0) of the message it answers,
the round trip time for that reply, the average round trip time so far,
and the `time to live' value from the reply packet.
The options are:
include source and destination IP addresses in the output
send requests with the given
in milliseconds (default: 1 second)
list only lost messages
messages in all (default: 32)
suppress per-packet output, giving summary data only
send request packets of the given
(default: 64, minimum 32)