[as112-ops] discarding request from Colt IP 217.111.216.206

[Clement Cavadore]

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