R: [nsp] Ip address on interface

[Roberto Paoletti]

Thanks everybody of you.....so it's no problem if i use this IP
address....i think that i forget a few of theory :-((

Thanks for your collaboration

Roberto Paoletti

-----Messaggio originale-----
Da: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] Per conto di Michael Loftis
Inviato: mercoledì 5 marzo 2003 17.27
A: Roberto Paoletti; cisco-nsp at puck.nether.net
Oggetto: Re: [nsp] Ip address on interface

Because in the first instance, with a mask of 255.255.255.0 the
xx.xx.xx.0 
and xx.xx.xx.255 addresses are reserved, the first for the subnet 
identifier, and hte last as the broadcast.  In your second example with
a 
mask of 255.255.0.0 the xx.xx.0.0 and xx.xx.255.255 addresses are
reserved 
for the same reasons, the .0.0 being the subnet identifier, and the 
.255.255 being the broadcast address.

All bits as 0's in the host portion identify the subnet, all 1's in the 
host portion identifies the broadcast address.  They aren't available
for 
assignment as regular IP addresses because they are reserved for these 
special uses.

--On Wednesday, March 05, 2003 5:17 PM +0100 Roberto Paoletti 
<rob.paol at iol.it> wrote:

>
>
> Hi all,
>
>
>
> i'd like to do a question, i configured on my router an ip address on
the
> serial interface and i assigned this :
>
>
>
> ip address 192.168.10.0 255.255.255.0
>
>
>
> and the response is Bad Mask....that's all right.
>
>
>
> I don't know why if i assigned this :
>
>
>
> ip address 192.168.10.0 255.255.0.0
>
>
>
> it accept this command.
>
>
>
> Is it maybe a stupid question?????
>
> Is it correct????
>
>
>
>
>
> Regards,
>
> Thanks
>
> Roberto Paoletti
>
>


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