> On Fri, Jun 14, 2024 at 06:42:09AM GMT, Rodney W. Grimes wrote: > > > "Poul-Henning Kamp" <p...@phk.freebsd.dk> writes: > > > > > > > Defaulting to a /8 netmask for 192.168.x.y does not make *any* sense > > > > ever. > > > > > > Well, not in the last 30 years or so, anyway. > > > > No, never ever did /8 make since on 192.*.*.*, that has always been > > class C address space. > > I think what Poul-Henning meant is that 31 years ago, in 1993, classless > inter-domain routing (CIDR) was introduced by the IETF, and it rendered > "class"es of ip addresses obsoletes. > > So, class C address spaces has been dead for 31 years :-)
NO! That is an incorrect interpretation of what CIDR does, CIDR did NOT remove the Class A/B/C applied to address space, it simply added functionality (supernetting and subnetting) of the A/B/C space that allows you to do things DIFFERENT than the default /8 /16 and /24 bit prefix length that classfull addresses implied. > -- > Mathieu Arnold -- Rod Grimes rgri...@freebsd.org
