Schiro, Dan writes: > This is a dangerous prospect. The company I work for makes a networking > stack and our IPv6 implementation expects the lower 64 bits to be the unique > interface identifier. Does anyone see how wasteful this is? What's the likelihood of having 2^64 unique interfaces in the world? > Now would be the time to change the spec if its going > to be done, otherwise it will already have market > penetration just like NAT. I think that anyone with a choice should stay away from IPv6 for as long as possible. No matter how the spec is changed, it will still be a mess. It's pretty obvious that nobody knows what he is doing.