nanog mailing list archives
Re: Global Blackhole Service
From: Matthew Moyle-Croft <mmc () internode com au>
Date: Sun, 15 Feb 2009 10:32:35 +1030
Florian Weimer wrote:
If you want to run a public exchange point, you need to solve the same announcement validation problem. Multiple organizations appear to do it successfully, so it can't be that difficult.How exactly do you do "validation"? If I give you a list of ASes and prefixes, what can you do to validate that they're ones I can actually announce on behalf of someone else? I can put whatever I want in an AS-SET (etc) pretty much. How do you actually check that I have the right relationship with a customer (or customer of a customer of a customer etc)? To put it into context - the approach of stuffing other people's ASes in a path to prevent them learning it is wide spread, especially in Asia - I've seen AS-SETs with all sorts of Tier1/2 ASes even though I know that they have no transit relationship with them!
MMC -- Matthew Moyle-Croft - Internode/Agile - Networks Level 4, 150 Grenfell Street, Adelaide, SA 5000 Australia Email: mmc () internode com au Web: http://www.on.net Direct: +61-8-8228-2909 Mobile: +61-419-900-366 Reception: +61-8-8228-2999 Fax: +61-8-8235-6909
Current thread:
- Re: Global Blackhole Service, (continued)
- Re: Global Blackhole Service Jack Bates (Feb 13)
- Re: Global Blackhole Service Florian Weimer (Feb 14)
- Re: Global Blackhole Service Patrick W. Gilmore (Feb 14)
- Re: Global Blackhole Service Michael Thomas (Feb 15)
- Re: Global Blackhole Service Marshall Eubanks (Feb 15)
- cogent issues John Martinez (Feb 15)
- Re: cogent issues Michal Krsek (Feb 16)
- Re: cogent issues neal rauhauser (Feb 16)
- Re: cogent issues Marshall Eubanks (Feb 16)
- Re: cogent issues Ran Liebermann (Feb 16)
- Re: Global Blackhole Service Matthew Moyle-Croft (Feb 14)
- Re: Global Blackhole Service Randy Bush (Feb 13)
- RE: Global Blackhole Service Barry Raveendran Greene (Feb 13)
- Re: Global Blackhole Service Suresh Ramasubramanian (Feb 13)
- Re: Global Blackhole Service Paul Vixie (Feb 13)
- Re: Global Blackhole Service Jack Bates (Feb 13)