Routing Table Jump caused by AS4151

Thu Nov 10 18:16:51 UTC 2005

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