[address-policy-wg] RE: The price of address space
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Jeroen Massar
jeroen at unfix.org
Fri Jul 24 16:01:13 CEST 2009
Masataka Ohta wrote: > Jeroen Massar wrote: > >> - At that point in time your business has to have a solution. >> Possible solutions: >> - Do IPv6 - scales quite well, requires upgrades >> - Do IPv4 CGN - doesn't scale. > > CGN not scale? > > NAT, in general including CGN, does scale to the extent to make > IPv6 not necessary. It scales on paper, till you start using it. 1 IPv4 address, 65k TCP ports, if one user opens maps.google, he uses 200 TCP sessions on average, thus 65k/200 == 332 users per IPv4 address. Yes, indeed, really "scales" well. CGNs will btw only delay the inevitable. (On the subject of CGN and content-restricting ISPs for CP and other 'legal reasons': I would actually simply go with an HTTP-only proxy. Nothing difficult, nothing to evade unless people start encoding their stuff inside HTTP) >> Your pick on WHEN you are going to do that. Can do it today, can do it >> in ten years when the competition has your customers. Enjoy ;) > > If it is 10 years, we should use not IPv6 but something else. You can do that, your competition will love you for it. [..] > As you don't accept the answer "never", discussion on whether it will > actually be "never" or not is inevitable. Give me one valid technical reason why I would accept "never"? Greets, Jeroen -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 187 bytes Desc: OpenPGP digital signature URL: <https://lists.ripe.net/ripe/mail/archives/address-policy-wg/attachments/20090724/82f85fec/attachment.sig>
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