Tell you what. If you can convince the RIRs that it's feasible to relax the allocation criteria for IPv4 blocks, and you can convince the ISPs to make address blocks available to their customers at reasonable prices, I'll happily co-author one or more drafts that explain: - why in hindsight RFC 1918 was a bad idea - why new sites should use global addresses rather than private addresses - why sites currently using private addresses should consider migrating to global addresses - techniques for minimizing the pain of renumbering in IPv4, and - alternate techniques for providing a similar degree of security to that obtained with private addresses (I say "co-author" because this is a LOT of ground to cover. Even if I could write it all myself, I doubt that I could defend it all against the various attacks it would draw from many quarters.) But last I knew, there were several technical hurdles associated with doing this - a perceived scarcity of addresses, route flapping, widespread use of IP addresses in various kinds of configuration files (making renumbering more difficult), and widespread "conventional wisdom" (supported by marketing BS) that NATs and private addresses are a Good Thing. Keith