Anyone notice strange announcements for 18.104.22.168/24
mdixon at nkc.org
Wed Jan 14 16:52:42 CST 2009
Well, if you really want to pick knits you are welcome to. If I meant
prepending, I would have said that. The example that I listed was
setting up a router, advertising the ASNs listed and the random IP
ranges gleaned from IANA. Sorry if I confused you.
312 Armour Rd.
North Kansas City, MO 64116
From: John Payne [mailto:john at sackheads.org]
Sent: Wednesday, January 14, 2009 3:57 PM
To: Michienne Dixon
Cc: NANOG list
Subject: Re: Anyone notice strange announcements for 22.214.171.124/24
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
> 312 Armour Rd.
> North Kansas City, MO 64116
> (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 126.96.36.199/24
> 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?
> (Yes, I'm in the minority that thinks that Randy hasn't done anything
> Simon Lockhart | * Sun Server Colocation * ADSL * Domain Registration
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