Re: question about net address

[Jeremy Ardley <jeremy@ardley.org>]

On 20/3/23 02:48, David Wright wrote:
> O
> > Checking the RFC. To my reading the final stanza is not checked
> > " The <ip> is compared to the given network. If CIDR prefix length
> >
> >     high-order bits match, the mechanism matches."
> >
> > https://datatracker.ietf.org/doc/html/rfc7208#section-5.6
> >
> > So in this case AI got it right.
> I don't follow. What's your "final stanza" referring to, and
> what's wrong with the RFC in connection with it?
I should have used the term 'final qnum' but I think that would be obscure.

I meant the fourth number in the IPv4 dotted-quad notation.

As for the RFC? It's precise and definitive. My only concern is that 
some mail system implementer may 'improve' the RFC and restrict the 
acceptable address range to a /32 when they see a non zero final qnum in 
a /24

--
Jeremy
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