[Internet-e-architetture-di-rete] esercizi VLSM IPv4

[Antonio Prado]

On 5/20/16 12:21 PM, Mauro Torresi wrote:
>  nella RFC l'esempio non l'ho trovato (ho cercato velocemente), però
> ho trovato questo...
> 
>        Since the bits that identify the subnet are specified by a
>       bitmask, they need not be adjacent in the address

ottimo, l'esempio si trova a pagina 15:
Appendix II.  Examples
3.  A Class C Network Case (illustrating non-contiguous subnet bits)

> ###########################
>  8.
>  Addr      129.130.131.132
>  Mask    255.255.255.  1
>  Net        129.130.131.0
>  Broadcast      129.130.131.254
>  Hosts         2^7-2= 126
>  ###########################

ko, correggi


>  ###########################
>  9.
>  Addr      129.130.131.132
>  Mask    255.255. 64.  0
> 
>  Net        129.130.0.0
>  Broadcast      129.130.191.255
>  Hosts         2^15-2= 32766
>  ###########################

esplicita il procedimento

>  ###########################
> 10.
>  Addr      129.130.131.132
>  Mask    255.255.  0.255
>  Net        129.130.0.132
>  Broadcast      129.130.255.132
>  Hosts         2^8-2= 254

esplicita il procedimento

grazie
--
antonio


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