Re: netmask question

[Tim Woodall <debianuser@woodall.me.uk>]

On Mon, 22 May 2023, coreyh@free.fr wrote:

> On 22/05/2023 09:41, Tim Woodall wrote:
> > On Sun, 21 May 2023, Timothy M Butterworth wrote:
> >
> > > The only address that should have a netmask of 255.255.255.255 is the
> > > Loopback interface.
> >
> > I don't much use ipv4 any more if I can avoid it but isn't it normal for
> > point-to-point links to have a netmask of 255.255.255.255?
> >
> > It definitely can be, maybe not so common as I assumed.
> >
> > loopback is a /8
>
> Hello,
>
> In CIDR a host address is xx.xx.xx.xx/32 which means 255.255.255.255.
> isn't it?

It depends on what question you're asking.

An individual address is a /32, but a host address might be listed as a
/24 for example. This means there are 256 addresses that can be reached
without routing.