Anyone notice strange announcements for 174.128.31.0/24

John Payne john at sackheads.org
Wed Jan 14 15:57:13 CST 2009


On Jan 14, 2009, at 10:50 AM, Michienne Dixon wrote:

>
> Interesting - So as a cyber criminal - I could setup a router, start
> announcing AS 16733, 18872, and maybe 6966 for good measure and their
> routers would ignore my announcements and IP ranges that I siphoned  
> from
> searching IANA?  Hm...  Would that also prevent them from accessing my
> rogue network from their network?


What do you mean "announcing AS 16733..." ?

Putting 16733 in an AS PATH is not announcing it.

>
>
>
>
> -
> Michienne Dixon
> Network Administrator
> liNKCity
> 312 Armour Rd.
> North Kansas City, MO  64116
> www.linkcity.org
> (816) 412-7990
>
> -----Original Message-----
> From: Simon Lockhart [mailto:simon at slimey.org]
> Sent: Wednesday, January 14, 2009 2:07 AM
> To: Hank Nussbacher
> Cc: NANOG list
> Subject: Re: Anyone notice strange announcements for 174.128.31.0/24
>
> On Wed Jan 14, 2009 at 09:59:14AM +0200, Hank Nussbacher wrote:
>> What if, by doing some research experiment, the researcher discovers
>> some unknown and latent bug in IOS or JunOS that causes much of the
>> Internet to go belly up?  1 in a billion chance, but nonetheless, a
>> headsup would have been in order.
>
> Say we had a customer who connected to us over BGP, and they used some
> new experimental BGP daemon. Their announcement was "odd" in some way,
> but appeared clean to us (a Cisco house). Once their announcement hit
> the a Foundry router, it tickled a bug which caused the router to
> propogate the announcement, but also start to blackhole traffic. Oh
> dear, large chunks of the Internet have just gone belly up.
>
> Should we have given a heads up to the Internet at large that we were
> turning up this customer?
>
> Simon
> (Yes, I'm in the minority that thinks that Randy hasn't done anything
> bad)
> -- 
>
> Simon Lockhart | * Sun Server Colocation * ADSL * Domain  
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>   Director    |    * Domain & Web Hosting * Internet Consultancy *
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>
>





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