Yup, they do indeed. And for fun, I black-listed one of our IPs, and
sure enough, the next-hop shows up as 10.255.255.255, and the
communities are the same aside from what appear to be regional things.
--
BGP routing table entry for 66.253.214.90/32, version 638637516
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Flag: 0x820
23473
10.255.255.255 (metric 10177050) from 154.54.66.21 (154.54.66.21)
Origin IGP, localpref 150, valid, internal, best
Community: 174:990 174:20912 174:21001 174:22013
Originator: 66.28.1.228, Cluster list: 154.54.66.21, 66.28.1.9
On 2/10/17 1:49 PM, Alistair Mackenzie wrote:
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 <ja...@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 <na...@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" <br...@2mbit.com>
To: nanog@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
