> > It's a 128 bit address. Routing is done on VLSM, but, generally for DNS > purposes, these > are expected to be at least on nibble boundaries. > > There is an intent to support what is known as EUI-64, which means every > subnet should > be a /64, however, there are people who number smaller subnets and that > is supposed > to work, but, it will break certain IPv6 things like stateless > autoconfiguration (which is > optional).
We are one of these people who opted to use smaller subnet sizes for point-to-point networks (i.e router transfer nets), If you are interested in what we did and want to see some examples of what other people are doing check out a presentation that I gave some time ago about our deployment http://www.convergence.cx/ipv6clara.ppt (apologies for the lack of PDF) Slides 2-15 Dave.
