On 11/30/2011 14:46, Bill Stewart wrote: > There's a very strong case to be made for "Be conservative in what you > generate and liberal in what you accept" here.
I've been saying for years that your safest bet is to reserve a /64, regardless of how many bits you use out of it, or why. If you do that you're covered either way. And in the incredibly unlikely event that you run out, and can't get more, you can go back and chop up the /64s where it's proven safe to use longer prefixes. easy peasy, Doug -- "We could put the whole Internet into a book." "Too practical." Breadth of IT experience, and depth of knowledge in the DNS. Yours for the right price. :) http://SupersetSolutions.com/