ARGH. You are of course right. I really do understand how it works, I
just can't seem to get the right numbers typed in. Maybe I better
postpone that router reconfig for another day ;)
On Fri, 8 Feb 2002, Suresh Ramasubramanian wrote:
> +++ Dave C. [exim-users] <07/02/02 13:57 -0500>:
> > Maybe I should quit answering questions so late at night. ;)
> > I of course meant to say something like:
> > 2.3.4.0/24
> > and
> > 2.3.5.0/24
> > could be combined into
> > 2.3.4.0/25
>
> That would, in fact, be a /23 ....
>
> suresh@mjollnir 03:02:43 [~]$ cidr 2.3.4.0/23
> ip address..........: 2.3.4.0
> netmask.............: 255.255.254.0
> network address.....: 2.3.4.0
> broadcast address...: 2.3.5.255
> please wait while host addresses are validated...
> total host addresses: 510
>
> OTOH, 2.3.4.0/25 is more like half a /24 ...
>
> suresh@mjollnir 03:02:03 [~]$ cidr 2.3.4.0/25
> ip address..........: 2.3.4.0
> netmask.............: 255.255.255.128
> network address.....: 2.3.4.0
> broadcast address...: 2.3.4.127
> please wait while host addresses are validated...
> total host addresses: 126
>
> -srs
>
> --
>
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>
>
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