Traceroute ICMP option doesn't work

[Christophe Leroy]

Le 08/12/2020 à 19:18, M K Verma a écrit :
> Christophe,
> 
> You see the issue in IPv6 as well?

No I didn't test it.

I just noticed that the error report was related to IPv6 and Denys was reporting that it was working 
for him on IPv4.

Christophe

> 
> On Tue, Dec 8, 2020, 23:44 Christophe Leroy <christophe.leroy at csgroup.eu 
> <mailto:christophe.leroy at csgroup.eu>> wrote:
> 
>     Denys Vlasenko <vda.linux at googlemail.com <mailto:vda.linux at googlemail.com>> a écrit :
> 
>      > On Tue, Dec 8, 2020 at 5:39 AM M K Verma <manishverma1420 at gmail.com
>     <mailto:manishverma1420 at gmail.com>> wrote:
>      >> Hi Busybox,
>      >>
>      >> Package: Busybox
>      >> Version: 1.29.3
>      >>
>      >> We see that traceroute with -6 or traceroute6 never succeeds to
>      >> trace some of the sites that filter UDP packets, for example
>      >> www.cisco.com <http://www.cisco.com>, www.nokia.com <http://www.nokia.com> and so on.
>      >>
>      >> We see the issue with IPv6 sites being tracerouted.
>      >> The traceroute to those sites never completes.
>      >>
>      >> We see that on a Linux machine traceroute6 or traceroute with -6,
>      >> enforced with -I (ICMP) easily completes the trace but never incase
>      >> of the traceroute in the Busybox.
>      >
>      > Works for me:
> 
>     You are IPv4. The problem is in IPv6 afaiu.
> 
>      >
>      > ./busybox-1.29.3 traceroute -n -I www.cisco.com <http://www.cisco.com>
>      > traceroute to www.cisco.com <http://www.cisco.com> (104.64.113.19), 30 hops max, 46 byte packets
>      >  1  192.168.1.1  2.504 ms  0.896 ms  0.895 ms
>      >  2  100.65.193.2  1.229 ms  1.335 ms  2.860 ms
>      >  3  83.240.3.158  1.167 ms  1.117 ms  1.177 ms
>      >  4  83.240.2.46  4.715 ms  5.067 ms  5.114 ms
>      >  5  83.240.2.45  5.388 ms  11.039 ms  5.642 ms
>      >  6  *  *  *
>      >  7  83.240.1.98  10.741 ms  9.736 ms  7.382 ms
>      >  8  83.240.1.101  68.036 ms  97.793 ms  17.241 ms
>      >  9  91.210.16.221  7.854 ms  11.494 ms  7.482 ms
>      > 10  104.64.113.19  7.425 ms  6.181 ms  7.128 ms
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