From owner-freebsd-questions  Wed Nov 20  3:15:10 2002
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Date: Wed, 20 Nov 2002 11:12:47 +0000
To: Matthew Seaman <m.seaman@infracaninophile.co.uk>,
	budsz <budsz@kumprang.or.id>
From: Rob O'Donnell <robert@aphnet.co.uk>
Subject: Re: question on IP alias/broadcast
Cc: freebsd-questions@freebsd.org
In-Reply-To: <20021117081620.GA19147@happy-idiot-talk.infracaninophi>
References: <20021117070457.GB45577@kumprang.or.id>
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At 08:16 17/11/2002 +0000, Matthew Seaman wrote:
>On Sun, Nov 17, 2002 at 02:04:57PM +0700, budsz wrote:
> > On Sat, Nov 16, 2002 at 04:21:34PM +0000, Matthew Seaman wrote:
> > >expressed as a hexadecimal or even decimal integer.  thus:
> > >
> > >    192.168.100.1 is the same as 0xc0a86401 or 3232261121
> > >                                               ^^^^^^^^^^
> > >and
> > >
> > >    0xffffff00 is the same as 255.255.255.0 or 4294967040
> >                                                 ^^^^^^^^^^
> >
> > Sorry sir, How we calculate that number (Decimal Interger)?, I hope
> > explaination step by step?
>
>Simple enough:
>
>This perl snippet will convert a dotted quad address into an integer:
>
[snip]

isn't it basically:     192 * 2^24 + 168 * 2^16 + 100 * 2^8 + 1


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