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ping: Packets to network hosts
ping uses ICMP datagrams to provoke a response
from the chosen destination host, mainly intending to probe
whether it is alive.
The used datagram, of type
ECHO_REQUEST, contains some header
information and some additional payload, usually a time stamp.
By a suitable choice of payload, different host or router properties
are detectable, as the emitted datagram travels to its destination.
ping [option…] host
Sending echo requests is the standard use of
but by far not the only use case.
|• Ping options|
|• Fault isolation|
|• Duplicate and damaged packets|
|• Data patterns|
|• TTL details|
|• Further remarks|