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