[86555] in North American Network Operators' Group
Re: Routing Table Jump caused by AS4151
daemon@ATHENA.MIT.EDU (Simon Leinen)
Thu Nov 10 13:17:29 2005
To: Network.Operations@usda.gov
Cc: Fredy Kuenzler <kuenzler@init7.net>, nanog@nanog.org,
elysia@att.com
From: Simon Leinen <simon@limmat.switch.ch>
In-Reply-To: <Pine.GSO.4.58.0511101509570.20032@marvin.argfrp.us.uu.net> (Christopher
L. Morrow's message of "Thu, 10 Nov 2005 15:10:40 +0000 (GMT)")
Date: Thu, 10 Nov 2005 19:16:51 +0100
Errors-To: owner-nanog@merit.edu
Christopher L Morrow writes:
> On Thu, 10 Nov 2005, Fredy Kuenzler wrote:
>> I noticed a jump from some 171k to almost 175k in the last days, and
>> checked CIDR http://www.cidr-report.org/:
>>
>> > Top 20 Net Increased Routes per Originating AS
>> >
>> > Prefixes Change ASnum AS Description
>> > 3263 0->3263 AS4151 USDA-1 - USDA
>>
>> so I wonder what's wrong with them.
> they are leaking just about every /24 in several /16's? :( ATT worldnet is
> passing them on too, perhaps they can smackdown usda? :)
Indeed.
Network Path
[...hundreds of similar routes deleted...]
* 199.156.247.0 3549 7018 4152 13979 4151 ?
* 199.156.249.0 3549 7018 4152 13979 4151 i
* 199.156.250.0 3549 7018 4152 13979 4151 i
* 199.156.252.0 3549 7018 4152 13979 4151 i
* 199.156.254.0 3549 7018 4152 13979 4151 ?
* 199.156.255.0 3549 7018 4152 13979 4151 ?
* 199.157.1.0 3549 7018 4152 13979 4151 ?
* 199.157.2.0 3549 7018 4152 13979 4151 ?
* 199.157.3.0 3549 7018 4152 13979 4151 ?
* 199.157.5.0 3549 7018 4152 13979 4151 i
* 199.157.7.0 3549 7018 4152 13979 4151 ?
* 199.157.8.0 3549 7018 4152 13979 4151 ?
[...hundreds of similar routes deleted...]
This looks more like configuration error than like anything more evil
(such as fine-grained traffic engineering).
AS4151, could you please stop this?
Thanks & regards,
--
Simon Leinen.
SWITCH
