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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