[Ilugc] tataindicom usb modem with mandriva2008.1
knura at yahoo.com
Wed Aug 27 09:53:02 IST 2008
On Wednesday 27 Aug 2008, Girish Venkatachalam wrote:
> On 10:09:12 Aug 25, Kenneth Gonsalves wrote:
> >> You could have an IP 192.168.0.1 but not an IP that ends in .0
> >> like 192.168.1.0 since both 192.168.1.255 and 192.168.1.0 are used
> >> for broadcast.
> > is this a convention or a rule?
> Sorry I saw this mail only now.
> This is a rule. Actually it is an accident.
> We are losing one extra IP for every subnet.
IMO, we loose 2 IP numbers for every subnet. One for the Network ID
(host bits all 0s) and one for the Broadcast ID (host bit all 1s).
> This is due to historical reasons. I wonder it is due to the conflict
> between having all 0s or all 1s for the host part of the IP address.
Pls. read the results of my experiment posted to this thread earlier.
0s and 1s are reserved for special purpose and routing tables go by it.
> Anyway one should read the history to figure out exactly what
Agreee, perhaps networking gurus here who could enlighten us?
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