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.
- Michienne Dixon Network Administrator liNKCity 312 Armour Rd. North Kansas City, MO 64116 www.linkcity.org (816) 412-7990 -----Original Message----- From: John Payne [mailto:j...@sackheads.org] Sent: Wednesday, January 14, 2009 3:57 PM To: Michienne Dixon Cc: NANOG list Subject: Re: Anyone notice strange announcements for 174.128.31.0/24 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 > liNKCity > 312 Armour Rd. > North Kansas City, MO 64116 > www.linkcity.org > (816) 412-7990 > > -----Original Message----- > From: Simon Lockhart [mailto:si...@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 Registration > * > Director | * Domain & Web Hosting * Internet Consultancy * > Bogons Ltd | * http://www.bogons.net/ * Email: i...@bogons.net * > >
