[176394] in North American Network Operators' Group

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Re: Anyone else having trouble reaching thepiratebay.se? AS39138

daemon@ATHENA.MIT.EDU (Courtney Smith)
Wed Nov 26 21:18:11 2014

X-Original-To: nanog@nanog.org
From: Courtney Smith <courtneysmith@comcast.net>
In-Reply-To: <5D1C0F5E-DAF6-4F7A-AEBF-EEFEE14EE230@truenet.com>
Date: Wed, 26 Nov 2014 21:18:01 -0500
To: Eric Tykwinski <eric-list@truenet.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org

I just posted TATA as a single example.  This route is missing from =
multiple networks.  I could not find the specific /24 on, Sprint(1239) =
AT&T(7018) and Centurylink either.

rviews@route-server.ip.att.net> show route 194.71.107.0/24=20

rviews@route-server.ip.att.net>=20

from https://www.sprint.net/lg/lg_start.php

Query Results:


Sprint Source Region: New York, NY (sl-gw27-nyc)
Performing: Show Route
% Network not in table
Completed - Wed Nov 26 21:11:51 EST 2014




Basic troubleshooting of your two example ASN's.  Notice the community =
174:991 on the Cogent path?  Go look that up in Cogent's community =
guide.  Level3's looking glass actually does the translation of =
communities for you.  I'm not going to try to map out all the possible =
paths this prefix could be reach.  At the moment, the /24 is not =
reachable from several networks.  Either an outage or a change at =
AS51040 or  their upstreams has caused the traffic engineering of one of =
the networks upstream of 51040 to break connectivity for a group of =
networks.

from http://www.cogentco.com/en/network/looking-glass

BGP routing table entry for 194.71.107.0/24, version 2977032097
Paths: (1 available, best #1, table Default-IP-Routing-Table)
  5580 39138 22351 2.207 51040
    38.104.73.58 (metric 10111041) from 154.54.66.76 (154.54.66.76)
      Origin IGP, metric 0, localpref 130, valid, internal, best
      Community: 174:991 174:10004 174:20999 174:21001 174:22013
      Originator: 66.28.1.248, Cluster list: 154.54.66.76, 66.28.1.69, =
66.28.1.103, 66.28.1.9, 154.54.66.49

Route results for 194.71.107.0/24 from Atlanta, GA

BGP routing table entry for 194.71.107.0/24
Paths: (2 available, best #1)
  5580 39138 22351 23456 51040
  AS-path translation: { ATRATO-IP OPENAP-WIRELESS-NETWORKS-AS INTELSAT =
AS23456 PIRATE-AS }
    ear1.Atlanta2 (metric 20000)
      Origin IGP, metric 0, localpref 100, valid, internal, best
      Community: North_America  Lclprf_100 Level3_Customer United_States =
Atlanta Level3:10074 5580:25215 Suppress_to_Peers
      Originator: ear1.Atlanta2
  5580 39138 22351 23456 51040
  AS-path translation: { ATRATO-IP OPENAP-WIRELESS-NETWORKS-AS INTELSAT =
AS23456 PIRATE-AS }
    ear1.Atlanta2 (metric 20000)
      Origin IGP, metric 0, localpref 100, valid, internal
      Community: North_America  Lclprf_100 Level3_Customer United_States =
Atlanta Level3:10074 5580:25215 Suppress_to_Peers
      Originator: ear1.Atlanta2




On Nov 26, 2014, at 7:32 PM, Eric Tykwinski wrote:

> Courtney,
>=20
> No offense, and I can=92t really verify Comcast=92s network.  But =
Verizon peers with the same ASNs I do 3356 and 174 which both have =
routes to thepiratebay=92s prefixes, and I can almost guarantee that =
Comcast has those routes within your network.  What=92s up really?  Just =
because TATA is  blocking routes shouldn=92t effect the whole internet, =
or this whole thing would have been screwed a long time ago.
>=20
> Sincerely,
>=20
> Eric Tykwinski
> TrueNet, Inc.
> P: 610-429-8300
> F: 610-429-3222
>=20
>> On Nov 26, 2014, at 2:11 PM, courtneysmith@comcast.net wrote:
>>=20
>> Only one of their /24's is in TATA's(AS6453) table.
>>=20
>> http://bgp.he.net/AS51040#_prefixes
>>=20
>>=20
>> http://lg.as6453.net
>>=20
>> Router: gin-aeq-tcore1
>> Site: US, Ashburn, AEQ
>> Command: show route protocol bgp 194.71.107.0/24 terse exact
>>=20
>>=20
>> {master}
>>=20
>>=20
>> Router: gin-aeq-tcore1
>> Site: US, Ashburn, AEQ
>> Command: show route protocol bgp 194.14.56.0/24 terse exact
>>=20
>>=20
>> inet.0: 520187 destinations, 3597636 routes (519993 active, 9 =
holddown, 1053 hidden)
>> Restart Complete
>> + =3D Active Route, - =3D Last Active, * =3D Both
>>=20
>> A V Destination        P Prf   Metric 1   Metric 2  Next hop        =
AS path
>> * ? 194.14.56.0/24     B                                          =
197595 51040 I
>> unverified                                       >216.6.87.1
>> ?                    B                                          =
197595 51040 I
>> unverified                                       >216.6.87.1
>> ?                    B                                          =
197595 51040 I
>> unverified                                       >216.6.87.1
>> ?                    B                                         1239 =
1257 197595 51040 I
>> unverified                                       >144.232.7.61
>>=20
>> {master}
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>> On 11/26/14, 2:01 PM, " eric-list@truenet.com " < =
eric-list@truenet.com > wrote:=20
>>=20
>>=20
>> Javier,=20
>>=20
>>=20
>> I can't get to www.rrbone.net, an upstream provider to the IP I was =
given for thepiratebay.se.=20
>> I tested on VZ FiOS and Wireless in Philadelphia area and both die =
within the VZ network.=20
>>=20
>>=20
>> For Comcast, it looks like the space isn't showing up in the BGP =
table:=20
>> route-server.newyork.ny.ibone>show ip bgp 194.71.107.27=20
>> % Network not in table=20
>>=20
>>=20
>> No clue what the cause is, but it bigger than just the PirateBay.=20
>>=20
>>=20
>> Sincerely,=20
>>=20
>>=20
>> Eric Tykwinski=20
>> TrueNet, Inc.=20
>> P: 610-429-8300=20
>> F: 610-429-3222=20
>>=20
>>=20
>>=20
>>=20
>> -----Original Message-----=20
>> From: NANOG [ mailto:nanog-bounces@nanog.org ] On Behalf Of Javier J=20=

>> Sent: Wednesday, November 26, 2014 1:44 PM=20
>> To: nanog@nanog.org=20
>> Subject: Re: Anyone else having trouble reaching thepiratebay.se? =
AS39138=20
>>=20
>>=20
>> I confirmed It is also blocked for Comcast users. Even Comcast =
business users. This is starting to look like censorship to me.=20
>=20
>=20

Courtney Smith
courtneysmith@comcast.net

I wanna devise a virus
To bring dire straits to your environment
Crush your corporations with a mild touch
Trash your whole computer system and revert you to papyrus




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