[ppml] [address-policy-wg] Those pesky ULAs again
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Per Heldal
heldal at eml.cc
Wed May 30 10:19:48 CEST 2007
On Tue, 2007-05-29 at 10:25 -0700, David Williamson wrote: > Uh, neither of those reasons undermines the solution others have > proposed: use PI space. You can always just not announce some part (or > all) of your space. That would make it private. Until there's a magic solution for scalable IDR you'll hit the filter-wall. For ARIN's PI-block (/48 as defined by ARIN), expect networks to filter anything that is more specific. Hence you won't be able to keep a chunk "private" by making it "invisible" to the outside world. > ULA-C sounds to me like a request to the guys who spin silicon to help > people keep from screwing up their router configs. If someone can't > manage to filter their BGP such that they keep some (or all) of their > space private, I don't see why Cisco, Juniper, et al., need to do > that for them. ULA-C is a questionable workaround for the IT-industry's failure to solve basic problems. E.g; why, in 2007, is renumbering even an issue anymore? It shouldn't be a problem when changing upstream provider, nor should it be an issue when different private networks are joined. //per
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