[筆記] 幾個ICMP tool

因為常忘記, 所以寫下來.

1. mtr

mtr combines the functionality of the traceroute and ping programs in a
single network diagnostic tool.

2. fping

fping is a like program which uses the Internet Control Message Proto-
col (ICMP) echo request to determine if a target host is responding.
fping differs from ping in that you can specify any number of targets
on the command line, or specify a file containing the lists of targets
to ping. Instead of sending to one target until it times out or
replies, fping will send out a ping packet and move on to the next tar-
get in a round-robin fashion.