[as112-ops] discarding request from Colt IP 217.111.216.206

[Clement Cavadore]

Hello Stefano,

AS112 is not managed by a single organization: there are many existing
nodes, and each one is managed by a different org.

It seems that you peer with a node in Switzerland, there, and there may
be some issues on it. I do not manage that particular node, I just
manage one in Paris, which is connected to FranceIX, Equinix Paris, and
Sfinx. Maybe you should try to route traffic towards another node ?

(btw: If you want to setup some peerings in Paris, feel free to ask in
private :-))

Regards

-- 
Clément Cavadore

On Tue, 2016-12-20 at 18:17 +0000, stefano.bucci at colt.net wrote:
> Hi ,
> 
> We have a direct peering with you:
> 
> RP/0/8/CPU0:sar5.BCN#traceroute ipv4 ?
>   WORD  Trace route to destination address or hostname
>   <cr>
> RP/0/8/CPU0:sar5.BCN#traceroute
> Protocol [ipv4]:
> Target IP address: 192.175.48.6
> Source address: 217.111.216.205
> Numeric display? [no]:
> Timeout in seconds [3]:
> Probe count [3]:
> Minimum Time to Live [1]:
> Maximum Time to Live [30]:
> Port Number [33434]: 53
> Loose, Strict, Record, Timestamp, Verbose[none]:
> 
> Type escape sequence to abort.
> Tracing the route to 192.175.48.6
> 
>  1   *
>     te0-6-1-0-cr1.BCN.router.colt.net (212.74.67.78) 23 msec  24 msec
>  2  te0-5-1-0-cr2.MIL.router.colt.net (212.74.86.96) [MPLS: Label 16041 Exp 0] 22 msec  20 msec  22 msec
>  3  te0-6-0-0-cr1.MIL.router.colt.net (212.74.87.112) [MPLS: Label 16380 Exp 0] 21 msec  22 msec  22 msec
>  4  te0-2-0-0-cr2.ZRH.router.colt.net (212.74.87.115) [MPLS: Label 17919 Exp 0] 23 msec  21 msec  22 msec
>  5  te0-1-0-0-pr2.ZRH.router.colt.net (212.74.87.3) 22 msec  23 msec  22 msec
>  6  blackhole-1.iana.org (192.175.48.6) 23 msec  19 msec  19 msec
> 
> 
> Stefano Bucci
> 
> 
> 
> -----Original Message-----
> From: Clement Cavadore [mailto:clement at cavadore.net]
> Sent: 20 December 2016 19:14
> To: Nick Hilliard <nick at foobar.org>
> Cc: Bucci, Stefano <stefano.bucci at colt.net>; as112-ops at lists.dns-oarc.net <as112-ops at dns-oarc.net>
> Subject: Re: [as112-ops] discarding request from Colt IP 217.111.216.206
> 
> Hi,
> 
> On Tue, 2016-12-20 at 17:59 +0000, Nick Hilliard wrote:
> > stefano.bucci at colt.net wrote:
> > > As per my subject, is it possible that DNS query coming from IP
> > > 217.111.216.20 owned by Colt are being discarded.
> 
> I cannot reach this IP from my ASN, it seems that traffic is blackholoed at Colt's DECIX FRA router, or mtr has strange behaviour:
>  4. Te0-0-0-0-pr1.FRA.router.colt.ne  0.0%     1   10.2  10.2  10.2  10.2   0.0
>  5. 212.74.67.79                      0.0%     1   37.2  37.2  37.2  37.2   0.0
>  6. 212.74.67.79                      0.0%     1   36.7  36.7  36.7  36.7   0.0
> (...)
> 
> > which is your nearest as112 server?  Can you provide a traceroute to
> > 192.175.48.6 and 2620:4f:8000::6?
> 
> It seems that 217.111.216.20 is a Colt's spanish IP, and is sent to a node in CH:
> https://portal.colt.net/lg/private/lookingGlassExec.do?action=doExecCommand&cityId=Madrid&commandId=TracertV4&ipAddress=192.175.48.6
> 
> inetnum:        212.74.70.0 - 212.74.70.255
> netname:        COLT-BB-CH
> 
> 
> 
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