nanog mailing list archives

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


From: Courtney Smith <courtneysmith () comcast net>
Date: Thu, 27 Nov 2014 00:45:42 -0500


No problem here in Los Angeles either, but seeing a lone route through Atrato only.

flags destination          gateway          lpref   med aspath origin
*>    194.71.107.0/24      <>     100     0 3491 5580 39138 22351 2.207 51040 i
*     194.71.107.0/24      <>       100     0 174 5580 39138 22351 2.207 51040 i


On 11/27/2014 午前 11:24, Tony Wicks wrote:

No problem here in New Zealand

tonyw@vrhost1-w> show route 194.71.107.0/24

icore1-w.inet.0: 519451 destinations, 525214 routes (519437 active, 14
holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

194.71.107.0/24    *[BGP/170] 10:25:44, MED 0, localpref 90
                       AS path: 4826 5580 39138 22351 131279 51040 I,
validation-state: unverified
                     > to 175.45.102.9 via ae1.526


Hopefully the body cones thru this time.  The issue isn't city or country based.  In my last post I pointed out the do 
not announce to peers community AS5580 was sending to Cogent, Level3 and who knows who else.   So any ASN that is not a 
customer of Cogent or Level3 wont learn the 5580 path from them.

When I checked a few hours ago, Comcast, Centurylink, AT&T, TATA, and possibly Sprint were not seeing the /24 based on 
their public looking glasses or route servers.  Have not had time to run bgplay  to see if routeviews data shows how 
they previously saw the /24 in past 30 days.   Finding the ASN(s) they used to see from would shed light on why they 
stopped seeing.   Checking bgplay and contacting AS51040 to reach out to their upstreams is my suggestion.

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