[Fiware-lab-help] MD-VPN issues at FI-LAB 10.0.3.45/21

[José Ignacio Carretero Guarde]

I don't think that "ping" is a reliable tool in this case, anyway. ---
Yes, I can admit you can ping a 10.0.0.1 from your IP, but FI-LAB's
10.0.0.1 doesn't respond to ping from 10.0.0.0/8 -- In fact, it drops
those packages.

BR,
José Ignacio.

El 19/05/14 12:39, Jan Kundrát escribió:
> On Monday, 19 May 2014 12:32:37 CEST, José Ignacio Carretero Guarde
> wrote:
>> It seems that somewhere in the european Backbone (62.40.102.15) didn't
>> find FI-LAB's 10.0.0.1
>
> I don't think that the problem is in the GEANT's infrastructure
> because the CESNET node can reach 10.0.0.1 just fine:
>
> [root at potemkin02 ~]# tracepath 10.0.0.1
> 1:  10.0.96.132 (10.0.96.132)                              0.102ms
> pmtu 9100
> 1:  no reply
> 2:  62.40.124.41 (62.40.124.41)                            1.117ms 3:
> 62.40.124.41 (62.40.124.41)                            0.951ms pmtu 1488
> 3:  no reply
> 4:  ae2.mx1.fra.de.geant.net (62.40.98.53)                34.688ms
> asymm 17 5:  ae1.mx1.ams.nl.geant.net (62.40.98.129) 35.294ms asymm 16
> 6:  ae2.mx1.lon.uk.geant.net (62.40.98.80)                34.594ms
> asymm 15 7: ae7.mx1.dub.ie.geant.net (62.40.98.92)
> 35.314ms asymm 14 8:  ae1.mx2.dub.ie.geant.net (62.40.98.91) 34.577ms
> asymm 13 9:  62.40.102.15 (62.40.102.15)
> 34.417ms asymm 11 10: 10.0.0.1
> (10.0.0.1)                                   34.288ms reached
>     Resume: pmtu 1488 hops 10 back 246
>
> In fact, 10.0.0.1 is visible within the trace towards 10.0.3.45 -- see
> hop #10:
>
> [root at potemkin02 ~]# tracepath 10.0.3.45
> 1:  10.0.96.132 (10.0.96.132)                              0.142ms
> pmtu 9100
> 1:  no reply
> 2:  62.40.124.41 (62.40.124.41)                            1.060ms 3:
> 62.40.124.41 (62.40.124.41)                            1.006ms pmtu 1488
> 3:  no reply
> 4:  ae2.mx1.fra.de.geant.net (62.40.98.53)                34.700ms
> asymm 17 5:  ae1.mx1.ams.nl.geant.net (62.40.98.129) 34.593ms asymm 16
> 6:  ae2.mx1.lon.uk.geant.net (62.40.98.80)                34.572ms
> asymm 15 7: ae7.mx1.dub.ie.geant.net (62.40.98.92)
> 34.771ms asymm 14 8:  ae1.mx2.dub.ie.geant.net (62.40.98.91) 34.544ms
> asymm 13 9:  62.40.102.15 (62.40.102.15)
> 34.359ms asymm 11 10: 10.0.0.1
> (10.0.0.1)                                   34.424ms 11:  no reply
>
> Despite that, I cannot ping 10.0.3.45 from 10.0.96.132. I can ping
> 10.0.0.1, though.
>
> With kind regards,
> Jan
>


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