Trace route
Trace route (new in Version 1.3)
determines the path to a destionation (if not prohibited by firewalls). Is is being impelemented for very fast path determination.
And is automatically does reverse lookups on any IP address
in the path for better readablility.
When a trace is running two numbers are being displayed
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The first number describes the hop that is actually being traced. And the second number (1-3) the ping which is being send to that hop. For each hop 3 pings are being send with the appropriate TTL.

If a trace started and no results are being displayed despite of the fact that hop for hop is being testet this means that the first hop blocks every returning packet. In every case when a trace finishes either the destination reply is being shown or if the destination does not answer or in the case that his answer is being blocked an "unknwon hop to destination" message is displayed instead.