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Date:      Fri, 16 Feb 1996 12:46:49 +0200 (EET)
From:      Narvi <narvi@haldjas.folklore.ee>
To:        Nate Williams <nate@sri.MT.net>
Cc:        hackers@FreeBSD.ORG
Subject:   Re: Broadcast, Netmask, and other such information 
Message-ID:  <Pine.BSF.3.91.960216124406.13853A-100000@haldjas.folklore.ee>
In-Reply-To: <199602152223.PAA01710@rocky.sri.MT.net>

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On Thu, 15 Feb 1996, Nate Williams wrote:

> David Greenman writes:
> > >Maybe I'm not making myself clear.  When I say 'addresses in the
> > >subnet', I'm trying to convey a number which *should* be a power of 2 #.
> > >In the above example, there are 32 addresses assigned in each subnet, of
> > >which there are only 31 usable as host addresses (except in the first
> > >and last subnets due to the .0 & .255 addresses being unusable).
> > 
> >    Actually, no, you would only get 30 hosts per subnet. The all-ones host
> > part on each subnet is the subnet's broadcast address and all-zeros host
> > can't be used, either.
> 
> I'm assigned 32 IP addresses out of the 10.5.5.0/24, which is
> 10.5.5.96/27. Are you saying that I can't use the address 10.5.5.96
> since it's the 'all zeroes' address?
> 
> 
> 
> Nate
> 

Yes, you can't. The "network" and "broadcast" adresses are reserved - you 
can't use them for IP adresses for physical interfaces. I assure you - 
there is no way and it should not be done.

	Sander.




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