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What is ping?
Ping ist ein tool for analysis, that displays the availability of the destination host and the signal propagation delay to reach this host.
For this the tool sends several ICMP-Packages (echo request, "ping") to the host, that should respond with the ICMP-Package (echoreply, "pong") to show its availability.
Is the host not available, the responsible router responds with "network unreachable" or "host unreachable".
Please note, that a firewall can suppress the ICMP-response of your machine. The existence of your computer in the net is then harder to detect.
C:\>ping google.de
Ping wird ausgeführt für google.de [209.85.229.104] mit 32 Bytes Daten:
Antwort von 209.85.229.104: Bytes=32 Zeit=44ms TTL=54
Antwort von 209.85.229.104: Bytes=32 Zeit=44ms TTL=54
Antwort von 209.85.229.104: Bytes=32 Zeit=43ms TTL=54
Antwort von 209.85.229.104: Bytes=32 Zeit=43ms TTL=54
Ping-Statistik für 209.85.229.104:
Pakete: Gesendet = 4, Empfangen = 4, Verloren = 0 (0% Verlust),
Ca. Zeitangaben in Millisek.:
Minimum = 43ms, Maximum = 44ms, Mittelwert = 43ms
