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Re: Kernelrouting Verständnisfragen



Hallo Markus,

On 01/04/2016 10:52 PM, Markus Müller wrote:
> $traceroute6 2001:470:7130::4444
> 1  2a02:908:f61:ee80:8af7:c7ff:fe7b:8930
> (2a02:908:f61:ee80:8af7:c7ff:fe7b:8930)  1.385 ms  2.028 ms  6.248 ms
>  2  * * *
>  3  de-wup01a-rd01-ae10-1060.wup.unity-media.net (2a02:908:0:15f::1) 
> 11.299 ms  11.309 ms  11.267 ms
>  4  de-wup01a-rd02.wup.unity-media.net (2a02:908::f:2)  15.901 ms 
> 17.184 ms  17.179 ms
>  5  2001:730:2d00::5474:8066 (2001:730:2d00::5474:8066)  20.332 ms 
> 20.333 ms  20.317 ms
>  6  2001:730:2d00::5474:8001 (2001:730:2d00::5474:8001)  20.229 ms 
> 12.182 ms  14.477 ms
>  7  100ge7-2.core1.fra1.he.net (2001:7f8::1b1b:0:1)  25.093 ms  25.621
> ms  25.569 ms
>  8  tserv1.fra1.he.net (2001:470:0:69::2)  24.970 ms  24.877 ms  24.812 ms
>  9  rt01-fra-accelerated.regioways.de (2001:1608:10:160:204::1)  20.744
> ms  20.742 ms  24.778 ms
> 10  * * *
> 
> Man könnte also mutmaßen das *** ein Kernel Next-Hop ist.

Könnte man, ja. Alternativ könnte man auch mal in der leckeren Doku
nachsehen. Aus traceroute(1):

Three probes (by default) are sent at each ttl setting and a line is
printed showing the ttl, address of the gateway and round trip time of
each probe. [...] If there is no response within a 5.0 seconds
(default), an "*" (asterisk) is printed for that probe.

Liebe Grüße
Uwe


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