Per Heldal wrote:
What the immediate upstream may think would be irrelevant. *If* there is *ever* consensus within the RIPE community to have the NCC reclaim blocks, there would have to be mechanisms in place to enforce the decision. That would most probably involve a quarantine period for reclaimed prefixes during which transit providers in the region would be asked to black-hole the space.
No, not black-hole! Just don't accept! Because of there will be another period of "de-black-holing" ;) and so on...
It only takes a handful of large transit providers to black-hole a prefix to render that address-block useless.
Again, if there is no inetnum/as/roure objects, "large transit providers" just drop this because of RR DB filters. This also true for those who "transmit pirate signal into the Matrix" ;) using fake IPs and ASes.
The question isn't if it can be done or not, but whether the RIPE community as a whole really wants such a scheme to be implemented.
I think it must be done. Not only because of this case, but also for blocking unauthorized announces. -- WBR, Max Tulyev (MT6561-RIPE, 2:463/253@FIDO)