>> When do we distribute 240/4 among the RIRs as "really last /8s"? > > I made that question myself during an ICANN meeting (the only i > attended) 10 years ago. The answer was something about operating > systems' stacks. I wasn't fully convinced, but a large majority of > internet plumbers seems to buy it...
analogous to one's need for ipv4 reachability until the last ipv4 sites die out, if any equipment does not properly route and forward 240/4 then there will be folk who can not reach those with addresses drawn from that space. darned shame but we do need universal reachability. we do not have a good track record for addressing architectures. check out rfc 2450 when you have not eaten recently. randy
