> From: Nick Hilliard <nick@xxxxxxx> > Given that we just saw a /16 sold for $12/ip, what makes you think that > any carrier would open up a /10 allocated to them for the good of > humanity, at a potential future asset loss of $50m? I hear you, but... if these things are worth so much, why are the RIR's just giving them away? (Rhetorical question: I know the answer.) I mean, it really drives me a bit batty that, under current rules, ISP's I1...In can all go to their RIRs, and each be given a block of space for free, to support future customers, and under those current rules, the RIRs pretty much _have_ to give them the space, but... we have a hard time giving those same ISPs _one_ block instead, to share. Too bad the RIRs can't say 'OK we changed our policy, no more address blocks for free - but if you ask for one for a _shared_ purpose, that we can do'. > From: Bob Hinden <bob.hinden@xxxxxxxxx> > I assume that there aren't any CPE deployed behind CGN today. Well, I actually suspect there are - but other strategies are being used to provide the address space for those CGNs (per-ISP 'public' space; 1918-space; squatted space; etc, etc). > a CGN deployment is a new deployment and the ISPs choosing to do this > could make sure that their customers CPE can support class E addresses I suspect that CGNs are not, by and large, targetted to entirely new customers: if they were, it might work to say 'equipment you buy to connect must meet standards A, B and C'. Rather, I suspect that as customer bases grow, some ISPs don't have enough 'public' space to give one to each customer any more, so they want to deploy CGN - and they need address space for the chunk of fabric between the CGNs and the CPEs. In other words, its mostly _existing_ customers who are about to be CGN'd. Noel _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf