[ppml] [address-policy-wg] Those pesky ULAs again
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Paul Vixie
paul at vix.com
Fri Jun 1 19:00:46 CEST 2007
> The whole "routing is not guaranteed" thing is obviously in there > because of the lawyers since ARIN can't force ISPs to route any given > block of address space, not because routability isn't a goal. yes. but also because of the other part of my text, which you didn't include in your reply so i don't know whether you agreed with it or not: >> ... we would have to define "routable", we could face implied liability for >> routability on "normal address space" (even if we continue to disclaim it >> in the NRPM as we do now), and we would then walk the slippery slope of the >> changing definition "largest" with respect to breidbart's maxim: >> But what *IS* the internet? > It's the largest equivalence class in the reflexive transitive > symmetric closure of the relationship "can be reached by an IP > packet from". --Seth Breidbart in other words, the definition of "routable" depends on who you want to be able to exchange packets with. if three networks are numbered in 10.1/16, 10.2/16, and 10.3/16, and they interconnect, then that address space is "routable" for *some* definition of "routable". i don't think we want to have to define, and then live with the implications of, the word "routable". > > non-routable space comes from ietf/iana, not the RIRs. > > so, for ARIN to start allocating nonroutable space is a big change. > > Keeping the RIRs out of the ULA business would nicely avoid any > problems resulting from that. Just let the domain sell the ip6.arpa > domains in question. see above. dunno why you didn't read it the first time i posted it here but i've posted it again and added some explaination. "universal" or "unique" we know the definition of. "local" and "routable", not so much so.
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