Re: network problem (fwd)
On Thu, 7 Oct 2021 at 12:53, Lee <ler762@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!
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