Troubleshooting
Diagnostic Tools
Executing traceroute where the route becomes blocked or otherwise fails
results in an output marked by timeouts for all probes beyond the last detected
hop. For example with a maximum hop count of 7 (maxttl = 7), where the route
becomes blocked or otherwise fails, the output appears similar to this:
At hop 3, the first and
third probes timed out
but the second probe
reached the router.
All further probes
within the maxttl
timed-out without
finding a router or the
destination IP
address.
An asterisk indicates a timeout
without finding the next hop.
Figure C-20. Example of Traceroute Failing to Reach the Destination Address
C-43
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