At 22:58 09/10/2014 +0200, Christian Seitz wrote:
Allowing ASN to blackhole a prefix based on AS sets is dangerous from my point of view. In the RIPE database you can add any AS to your AS set without verification. Ok, it doesn't make much difference because most IP transit providers also filter on the AS set, but a worldwide announced /24 prefix is much more visible than a /32 blackhole route that is only announced to the participants.
See: http://www.ripe.net/ripe/mail/archives/routing-wg/2014-June/002696.html -Hank
