On Thu, 7 Oct 2021 at 12:53, Lee <ler...@gmail.com> wrote: > On 10/6/21, David wrote:
> > But others here are vastly more knowledgeable than I am about > > networks, so additions or corrections are welcome, as always :) > It's Classless Inter-domain Routing (CIDR) now and network masks are > no longer supported [1]. If you take a look at RFC-950 [2], there is > no requirement that the network and sub-network bits of an address be > contiguous. 252.252.252.252 was a perfectly valid mask and yields the > same number of host bits (8) as a 255.255.255.0 mask does. > > Then along came CIDR and dis-contiguous network/subnet bits were prohibited. Ahhh, that's interesting, I didn't know about that aspect. Thank you for taking the time to explain clearly, with links. I really appreciate it!
