nanog mailing list archives
Re: YouTube IP Hijacking
From: Simon Leinen <simon.leinen () switch ch>
Date: Tue, 26 Feb 2008 11:36:09 +0100
Iljitsch van Beijnum writes:
Well, if they had problems like this in the past, then I wouldn't trust them to get it right. Which means that it's probably a good idea if EVERYONE starts filtering what they allow in their tables from PCCW. Obviously that makes it very hard for PCCW to start announcing new prefixes, but I can't muster up much sympathy for that.
So basically, rather than generate routing registry filters for the entire world, generate routing registry filters for known careless ASes. This number should be small enough that this is somewhat doable. [...]
Maybe, but how much would that help? So you suggest that we only need to filter against AS7007, AS9121, and AS17557. Personally, those are among the ones I least worry about - maybe I'm naive, but I'd hope they or their upstreams have learned their lessons. The problem is that nobody knows which of the other 25000+ ASes will be the next AS7007. So I guess we have to modify your suggestion somewhat and, in addition to filtering the "known-careless" also filter the "unknown-maybe-careful" class. Oops, that leaves only the "known-careful" class, which includes... my own AS, and then whom? -- Simon.
Current thread:
- RE: YouTube IP Hijacking, (continued)
- RE: YouTube IP Hijacking Paul Ferguson (Feb 24)
- Re: YouTube IP Hijacking Daniel Roesen (Feb 24)
- Re: YouTube IP Hijacking Paul Ferguson (Feb 24)
- RE: YouTube IP Hijacking Paul Stewart (Feb 24)
- Re: YouTube IP Hijacking Jason (Feb 24)
- RE: YouTube IP Hijacking Paul Stewart (Feb 25)
- RE: YouTube IP Hijacking Paul Stewart (Feb 25)
- RE: YouTube IP Hijacking Paul Stewart (Feb 24)
- Re: YouTube IP Hijacking Daniel Roesen (Feb 24)
- RE: YouTube IP Hijacking Paul Ferguson (Feb 24)
- Re: YouTube IP Hijacking Iljitsch van Beijnum (Feb 25)
- Re: YouTube IP Hijacking Simon Leinen (Feb 26)
- BGP prefix filtering, how exactly? [Re: YouTube IP Hijacking] Pekka Savola (Feb 25)
- Re: BGP prefix filtering, how exactly? [Re: YouTube IP Hijacking] Danny McPherson (Feb 25)
- Re: BGP prefix filtering, how exactly? [Re: YouTube IP Hijacking] Pekka Savola (Feb 25)
- RE: BGP prefix filtering, how exactly? [Re: YouTube IP Hijacking] Randy Epstein (Feb 25)
- Re: BGP prefix filtering, how exactly? [Re: YouTube IP Hijacking] Valdis . Kletnieks (Feb 25)
- RE: BGP prefix filtering, how exactly? [Re: YouTube IP Hijacking] Randy Epstein (Feb 25)