[afnog] AS36947 (Algeria telecom) strange behavior

Tayeb tayeb.meftah at gmail.com
Sat Nov 15 14:41:40 UTC 2014


hey
i evean see packets traversing init7 to oranlink through amsix, and problem is there one of there hop is creating some issues
i'lle contact oranlink
thank


Envoyé de mon iPad

> Le 15 nov. 2014 à 13:13, Fredy Kuenzler <kuenzler at init7.net> a écrit :
> 
> Please help yourself:
> 
> http://www.init7.net/en/backbone/looking-glass/
> 
> http://www.init7.net/en/backbone/traceroute
> 
> We peer with Oranlink, not sure whether only at AMS-IX or elsewhere too.
> 
> --
> Fredy Kuenzler
> Init7 (Switzerland) Ltd.
> St.-Georgen-Strasse 70
> CH-8400 Winterthur
> Switzerland
> 
> http://www.init7.net/
> 
> 
>> Am 15.11.2014 um 13:06 schrieb Tayeb <tayeb.meftah at gmail.com>:
>> 
>> hello freedy,
>> i dont have any control of the bgp and i am just asking of any bad behavior on there side
>> also, not only OVH but anything routed through Amsix give no return traffic, look like
>> this is based on my traceroute, but maybe someone who's peered with amsix or have access to there LG check the route to 197.206.0.0/16 and ping / traceroute to the .1?
>> 
>> Envoyé de mon iPad
>> 
>> Le 15 nov. 2014 à 11:02, Fredy Kuenzler <kuenzler at init7.net> a écrit :
>> 
>>> You could try to prefer routing towards OVH AS16276 using one of your alternative transits Telecom Italia AS6762 or Telefonica AS12956 (not a smart choice, IMHO, assuming that your network has mainly eyeballs, in other words is inbound heavy).
>>> 
>>> To achieve this rerouting you likely need to overwrite the shorter AS path of your Oranlink feed (ie _57023_16276_ is shorter than _12956_xxxxx_16276_ )
>>> 
>>> Hope this helps. If not I suggest to contact OVH NOC engineers, I suppose on parle Français à OVH.
>>> 
>>> Meilleurs salutations,
>>> 
>>> --
>>> Fredy Kuenzler
>>> Init7 (Switzerland) Ltd.
>>> St.-Georgen-Strasse 70
>>> CH-8400 Winterthur
>>> Switzerland
>>> 
>>> http://www.init7.net/
>>> 
>>> 
>>>> Am 15.11.2014 um 10:26 schrieb Tayeb <tayeb.meftah at gmail.com>:
>>>> 
>>>> hi mark,
>>>> this as number is connected to oranLink S.A (seated in marseil) for now
>>>> this oran link have direct link to amsix
>>>> if i traceroute to OVH, my traffic enter OVH routers but i dont see the return traffic back to my source ip
>>>> the subnet i'm using is 197.206.0.0/16
>>>> i think they are also peered with Seacom, no?
>>>> i hope you understand:D
>>>> thank mark
>>>> 
>>>> Envoyé de mon iPad
>>>> 
>>>> Le 15 nov. 2014 à 09:22, Mark Tinka <mark.tinka at seacom.mu> a écrit :
>>>> 
>>>>>> On Friday, November 14, 2014 06:26:11 PM Tayeb wrote:
>>>>>> 
>>>>>> hi guys,
>>>>>> i see some strange things hapening there
>>>>>> anything going through amsix (mostly) dont have a return
>>>>>> traffic for example OVH France, and CloudFlare
>>>>>> those are one of the few destinations i can't access at
>>>>>> all another destinations ofer intermitan access (70/30)
>>>>>> anyone see such bad behavior from those crazy people
>>>>>> that dont evean know the base knoledge of bgp? check
>>>>>> there routing table please
>>>>> 
>>>>> Quite hard to understand your post, Tayeb.
>>>>> 
>>>>> Some traceroutes, BGP routes, e.t.c., would be helpful.
>>>>> 
>>>>> Mark.
>>>> _______________________________________________
>>>> afnog mailing list
>>>> http://afnog.org/mailman/listinfo/afnog
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