[afnog] AS36947 (Algeria telecom) strange behavior

[Fredy Kuenzler]

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.
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