On Mon, 29 Jan 1996, Peter Galbavy wrote:
ISPs are not given the opportunity to apply for topological *and* portable address space (eg we are multihomed to the US - Sprint allocations are not "good enough") from the InterNIC - we are sent to the RIPE NCC because our physical location happens to be within a geographical domain managed by the RIPE NCC.
You are the biggest ISP in Europe aren't you? How big? Couldn't you spend a few quid on incorporating Demon Internet Services Inc. in the USA? Wouldn't you then be eligible for IP addresses from the US Internic?
Demon is statically assigning IP addresses to dialup customers on a large scale. This results in adresses being used per customer and not per dial-in port. Obviously then number of customers is less limited than that of dial in ports. There is concern about the wastefulness of this practise on a large scale and the non-linear effects it could have on address space usage. Hence it is *global*, read IANA, policy to strongly discourage this practise and not to allocate more addresses than three months worth of usage. This is not just an NCC policy!
In the way we assign numbers, it is very linear. Just not all the hosts are reachable all the time. We return ICMP Host Unreacable from our core routers when a dial up customer is not logged in. I will try to explain
In a classless IPV4 world in which the old Class A address area is in production use, would we have enough available IP addresses for providers to do this on a large scale assuming that they would have near 100% utilization in the blocks that were being allocated statically? Didn't the experiment with 39/8 show that it was safe to allocate classlessly out of the old Class A addresses? Michael Dillon Voice: +1-604-546-8022 Memra Software Inc. Fax: +1-604-546-3049 http://www.memra.com E-mail: michael@memra.com