6 Dec
1999
6 Dec
'99
8:03 p.m.
Yes, you could arbitrarily say /17 is a fair border, and then people would complain about their /18s being unreachable.
using the rirs' allocation boundaries is logical, protects against some of the worst disasters we have had, and is a clearly visible detent on the dial. beyond that is a slippery slope with no rationale i can see for any stopping point until one hits /24, which we know invites global disasters. randy