23 Sep
2017
23 Sep
'17
10:48 a.m.
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