[Internet-e-architetture-di-rete] esercizi VLSM IPv4
Umberto Biondi
bndmrt at gmail.com
Sat May 21 23:17:13 CEST 2016
Ecco le mie soluzioni :
###########################
1.
Addr 0. 1. 2. 3
Mask 255.255.0.0
00000000.00000001.00000010.00000011
11111111.11111111.00000000.00000000
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
00000000.00000001.00000010.00000011
11111111.11111110.00000000.00000000
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
00000000.00000001.00000010.00000011
11111110.00000000.00000000.00000000
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
00000000.00000001.00000010.00000011
11000000.00000000.00000000.00000000
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
00000000.00000001.00000010.00000011
11110000.00000000.00000000.00000000
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
00000000.00000001.00000010.00000011
11111111.11111111.11111111.11110000
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
00000000.00000001.00000010.00000011
11111111.11111111.11111111.11111100
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
00000000.00000001.00000010.00000011
11111111.11111111.11111111.11111110
Net 0.1.2.2
Broadcast 0.1.2.2
Hosts 2^1-2=0
NON VALIDO
###########################
9.
Addr 0. 1. 2. 3
Mask 255.255.64.0
00000000.00000001.00000010.00000011
11111111.11111111.01000000.00000000
Net 0.1.0.0
Broadcast 0.1.0.3
Hosts 2^0-2=-1
NON VALIDO
###########################
10.
Addr 0. 1. 2. 3
Mask 255.255.0.255
00000000.00000001.00000010.00000011
11111111.11111111.00000000.11111111
Net 0.1.0.4
Broadcast 0.1.0.4
Hosts 2^8-2=254
NON VALIDO
#################
Buona serata a tutti.
Ciao
Umberto
Il giorno 20 maggio 2016 00:52, Antonio Prado via
Internet-e-architetture-di-rete <
internet-e-architetture-di-rete at list.informagiovani.comunesbt.it> ha
scritto:
> cari allievi,
>
> stasera abbiamo conversato degli spazi di indirizzamento IPv4 e IPv6:
> morfologia, notazione, subnetting.
>
> vi propongo ora qualche esercizio che mi raccomando di iniziare sin da
> subito finche' le idee sono fresche.
>
> dunque, come preannunciato, per ciascun indirizzo dato provate a
> calcolare inizio-rete, fine-rete e numero di host numerabili
> (considerato che in IPv4 non sono assegnabili agli host l'indirizzo di
> inizio rete e l'indirizzo di broadcast).
>
> faccio un esempio su come formattare l'esercizio:
>
> ###########################
> 1.
> Addr 1. 2. 3. 4
> Mask 255.255.255. 0
>
> Net 1.2.3.0
> Broadcast 1.2.3.255
> Hosts 2^8-2=254
> ###########################
>
> ecco gli esercizi:
>
> per i cognomi da A a L:
>
> A-L.
> Addr 0. 1. 2. 3
> Mask 255.255. 0. 0
> Mask 255.254. 0. 0
> Mask 254. 0. 0. 0
> Mask 192. 0. 0. 0
> Mask 240. 0. 0. 0
> Mask 255.255.255.240
> Mask 255.255.255.252
> Mask 255.255.255. 1
> Mask 255.255. 64. 0
> Mask 255.255. 0.255
>
> per i cognomi da M a Z:
>
> M-Z.
> Addr 129.130.131.132
> Mask 255.255. 0. 0
> Mask 255.254. 0. 0
> Mask 254. 0. 0. 0
> Mask 192. 0. 0. 0
> Mask 240. 0. 0. 0
> Mask 255.255.255.240
> Mask 255.255.255.252
> Mask 255.255.255. 1
> Mask 255.255. 64. 0
> Mask 255.255. 0.255
>
> ovviamente, come al solito, chiunque puo' partecipare alla
> soluzione/discussione
>
> grazie
> --
> antonio
>
>
> _______________________________________________
> Internet-e-architetture-di-rete mailing list
> Internet-e-architetture-di-rete at list.informagiovani.comunesbt.it
>
> http://list.informagiovani.comunesbt.it/mailman/listinfo/internet-e-architetture-di-rete
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.informagiovani.comunesbt.it/pipermail/internet-e-architetture-di-rete/attachments/20160521/3a034ab2/attachment.html>
More information about the Internet-e-architetture-di-rete
mailing list