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

[Abigail Bianconi]

Buonasera Antonio,


provo a risolvere l'esercizio. Avevo provato a leggere la Rfc ma non mi
aveva chiarito molto le idee. Grazie al tuo articolo ho compreso i
passaggi, anche se ancora ho delle difficoltà nel determinare le reti
contigue.

###########################
1.


Addr 0. 1. 2. 3
Mask 255.255.0.0

Net 0.1.0.0
Broadcast 0.1.255.255
Hosts 2^16-2=65534
###########################


###########################
2.


Addr 0. 1. 2. 3
Mask 255.254.0.0

Net 0.0.0.0
Broadcast 0.1.255.255
Hosts 2^17-2=131070
###########################


###########################
3.


Addr 0. 1. 2. 3
Mask 254.0.0.0

Net 0.0.0.0
Broadcast 1.255.255.255
Hosts 2^25-2=33554430
###########################


###########################

4.


Addr 0. 1. 2. 3
Mask 192.0.0.0

Net 0.0.0.0
Broadcast 63.255.255.255
Hosts 2^30-2=1073741822
###########################


###########################

5.


Addr 0. 1. 2. 3
Mask 240.0.0.0

Net 0.0.0.0
Broadcast 15.255.255.255
Hosts 2^28-2=268435454
###########################

###########################

6.


Addr 0. 1. 2. 3
Mask 255.255.255.240

Net 0.1.2.0
Broadcast 0.1.2.15
Hosts 2^4-2=14
###########################


###########################

7.


Addr 0. 1. 2. 3
Mask 255.255.255.252

Net 0.1.2.0
Broadcast 0.1.2.3
Hosts 2^2-2=2
###########################


###########################

8.


Addr 0. 1. 2. 3
Mask 255.255.255.1

Net 0.1.2.1
Broadcast 0.1.2.255
Hosts 2^8-2=254
###########################

###########################

9.


Addr 0. 1. 2. 3
Mask 255.255.64.0

Net 0.1.0.0
Broadcast 0.1.191.255
Hosts 2^16-2=65534
###########################


###########################

10.


Addr 0. 1. 2. 3
Mask 255.255.0.255
Net 0.1.0.3
Broadcast 0.1.253.0
Hosts 2^8-2=254
###########################


Grazie e buona serata.

Abigail
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