backbones filtering unsanctioned sites

Fri Feb 10 19:49:26 UTC 2017

Cogent also have a blackhole route-server that they will provide to you to
announce /32's for blackholing.

The address for this is 66.28.1.228 which is the originator for the
104.31.19.30/3 <http://104.31.19.30/32>2 and 104.31.18.30/32 routes.

On 10 February 2017 at 18:46, Jason Rokeach <jason at rokeach.net> wrote:

> This looks pretty intentional to me.  From
> http://www.cogentco.com/en/network/looking-glass:
>
> BGP routing table entry for 104.31.18.30/32, version 611495773
> Paths: (1 available, best #1, table Default-IP-Routing-Table)
>   Local
>     10.255.255.255 (metric 10177050) from 154.54.66.21 (154.54.66.21)
>       Origin IGP, metric 0, localpref 150, valid, internal, best
>       Community: 174:990 174:20912 174:21001
>       Originator: 66.28.1.228, Cluster list: 154.54.66.21, 66.28.1.9
>
> BGP routing table entry for 104.31.19.30/32, version 611495772
> Paths: (1 available, best #1, table Default-IP-Routing-Table)
>   Local
>     10.255.255.255 (metric 10177050) from 154.54.66.21 (154.54.66.21)
>       Origin IGP, metric 0, localpref 150, valid, internal, best
>       Community: 174:990 174:20912 174:21001
>       Originator: 66.28.1.228, Cluster list: 154.54.66.21, 66.28.1.9
>
>
> Call it a "hunch" but I doubt 10.255.255.255 is a valid next-hop router.
>
> 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?
> >
> >
> >
> >
> > -----
> > Mike Hammett
> > Intelligent Computing Solutions
> > http://www.ics-il.com
> >
> > Midwest-IX
> > http://www.midwest-ix.com
> >
> > ----- 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-
> > cogent-blocks-pirate-bay-and-other-pirate-sites-170209/
> > >
> > > /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
> >
> >
>