255.255.255.255 is the broadcast address and all other 240/4 are "for research purposes." IPv4 doesn't need "research" anymore because it's as dead as a whale oil barrel patch kit. I say fine: use them and un-bogon them. And then also deprecate the IPv4 internet by Dec 31, 2029.
Can't migrate to IPv6 without having a real deadline.
That's how it has to be because adoption that's optional never happens: look at the US and metrication.
Can't migrate to IPv6 without having a real deadline.
That's how it has to be because adoption that's optional never happens: look at the US and metrication.