Actually, its a wonder any of these would work in v6 at all given the description of the problem (address leaks).
-andy
Michael Mealling wrote:
Its not that 'we don't want to change because its to much work'. Its that the Internet architecture assured us that the hour glass model applied, that the network topology would remain abstracted within what to us is an opaque address space. One of the number one reasons its so easy for new application layer technologies to be deployed is that a developer doesn't need to know or care about any layer below TCP (or, in rare cases, UDP). If the lower layers want to change that hour glass model then we're talking about a serious breach of contract with the layers above it and a dangerous blow to the hour glass model.
-MM