backbones filtering unsanctioned sites
math at sizone.org
Fri Feb 10 20:15:18 UTC 2017
And because they're continuing to announce the /20, we run into their
blackhole unless we manually filter that /20. This is going to become
unworkable in short order once a bigger chunk of the internet starts doing
On Fri, Feb 10, 2017 at 03:03:11PM -0500, Christopher Morrow said:
>On Fri, Feb 10, 2017 at 1:39 PM, Mike Hammett <nanog at ics-il.net> wrote:
>> Have we determined that this is intentional vs. some screw up?
>if you look at the cogent LG it's pretty clear that the announce
>reachability for the /20 that includes the tpb /32.. and that the /32 is
>particularly routed elsewhere, and that the 'elsewhere' is coming form a
>bgp speaker who's DNS says something along the lines of: "blackhole"...
>so... err, either someone fat-fingered OR intentionally entered a /32 into
>the config management system :(
>> Mike Hammett
>> Intelligent Computing Solutions
>> ----- Original Message -----
>> From: "Brielle Bruns" <bruns at 2mbit.com>
>> To: nanog at nanog.org
>> Sent: Friday, February 10, 2017 12:28:53 PM
>> Subject: Re: backbones filtering unsanctioned sites
>> On 2/9/17 9:18 PM, Ken Chase wrote:
>> > https://torrentfreak.com/internet-backbone-provider-
>> > /kc
>> Funny. Someone else got back:
>> "Abuse cannot not provide you a list of websites that may be
>> encountering reduced visibility via Cogent"
>> I almost wish I had a Cogent circuit just to bring this up with an
>> account rep. Almost.
>> I'd very much so view this as a contractual violation on Cogent's part.
>> Cogent keeps contacting me every year wanting to sell me service. This
>> will be a good one to bring up when they call me next time.
>> Brielle Bruns
>> The Summit Open Source Development Group
>> http://www.sosdg.org / http://www.ahbl.org
Ken Chase - math at sizone.org Guelph/Toronto Canada
Heavy Computing - Clued bandwidth, colocation and managed linux VPS @151 Front St. W.
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