On 05/03/10 12:39 +0000, bmanning@vacation.karoshi.com wrote:
I *wholeheartedly* agree with Owen's assessment. Even spending time trying to calculate a rebuttal to his numbers is better spent moving toward dual-stack ;)
Nice.
Steve
er... what part of dual-stack didn't you understand? dual-stack consumes exactly the same number of v4 and v6 addresses.
I would expect the number of v6 addresses assigned to a host to be a multiple of the number of v4 addresses, depending on the type of host.
if you expect to dual-stack everything - you need to look again. either you are going to need:
lots more IPv4 space
stealing ports to mux addresses
run straight-up native IPv6 - no IPv4 (unless you need to talk to a v4-only host - then use IVI or similar..)
imho - the path through the woods is an IVI-like solution.
Or, dual stack today. When you've run out of IPv4 addresses for new end users, set them up an IPv6 HTTP proxy, SMTP relay and DNS resolver and/or charge a premium for IPv4 addresses when you start to sweat. -- Dan White