[Internet-e-architetture-di-rete] riepilogo 20160321 e esercizi

Fri Apr 15 16:34:38 CEST 2016

On 4/15/16 4:15 PM, Alessandro Molinari wrote:
> q: 128.127.128.127/15
> a: 128.126.0.0 - 128.127.255.255
ok

> Per l'anding eccolo (non lo avevo cancellato):
> 
> 128.127.128.127/255.255.255.64
> 10000000 (128)    01111111 (127)    10000000 (128)    01111111 (127)
> 11111111 (255)    11111111 (255)    11111111 (255)    01000000 (64)
> -----------------------------------------------------------------------------------------------------
> 10000000 (128)    01111111 (127)    10000000 (128)    01000000 (64)
> 
> 10000000 (128)    01111111 (127)    10000000 (128)    01111111 (127)
> 00000000          00000000          00000000          10111111
> -----------------------------------------------------------------------------------------------------
> 10000000 (128)    01111111 (127)    10000000 (128)    11111111 (255)
> 
> Quindi, se non mi sono sbagliato,
> 128.127.128.64 - 128.127.128.255


e se l'indirizzo fosse 128.127.128.1 ?

grazie
--
antonio

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 163 bytes
Desc: OpenPGP digital signature
URL: <http://list.informagiovani.comunesbt.it/pipermail/internet-e-architetture-di-rete/attachments/20160415/e0c0e250/attachment.bin>