<div dir="ltr"><span style="font-size:12.8px">Ciao Prof.,</span><div><span style="font-size:12.8px"><br></span></div><div><span style="font-size:12.8px">ho provato a fare gli esercizi, su </span><span style="font-size:12.8px">VLSM </span><span style="font-size:12.8px">IPv4:</span></div><div><span style="font-size:12.8px"><br></span></div><div><table border="0" cellpadding="0" cellspacing="0" width="225" style="border-collapse:collapse;width:169pt">
<colgroup><col width="225" style="width:169pt">
</colgroup><tbody><tr height="20" style="height:15pt">
<td height="20" class="" width="225" style="height:15pt;width:169pt">###########################</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">1</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Addr
129.130.131.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Mask
255.255.0.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt"></td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Net
129.130.0.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Broadcast 129.130.255.255</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Hosts 2^12-2=65534</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">###########################</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">2</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Addr
129.130.131.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Mask
255.254.0.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt"></td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Net
129.130.0.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Broadcast 129.131.255.255</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Hosts 2^17-2=131070</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">###########################</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">3</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Addr
129.130.131.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Mask
254.0.0.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt"></td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Net
128.0.0.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Broadcast 129.255.255.255</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Hosts 2^25-2=33664430</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">###########################</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">4</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Addr
129.130.131.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Mask
192.0.0.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt"></td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Net
128.0.0.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Broadcast 191.255.255.255</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Hosts 2^30-2=1073741822</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">###########################</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">5</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Addr
129.130.131.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Mask
240.0.0.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt"></td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Net
128.0.0.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Broadcast 143.255.255.255</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Hosts 2^28-2=268435454</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">###########################</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">6</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Addr
129.130.131.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Mask
255.255.255.240</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt"></td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Net
129.130.131.128</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Broadcast 129.130.131.143</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Hosts 2^4-2=14</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">###########################</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">7</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Addr
129.130.131.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Mask
255.255.255.252</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt"></td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Net
129.130.131.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Broadcast 129.130.131.135</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Hosts 2^2-2=2</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">###########################</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">8</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Addr
129.130.131.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Mask
255.255.255.1</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt"></td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Net
129.130.131.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Broadcast 129.130.131.254</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Hosts 2^7-2=126</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">###########################</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">9</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Addr
129.130.131.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Mask
255.255.64.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt"></td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Net
129.130.0.0</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Broadcast 129.130.191.255</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Hosts 2^13-2=8190</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">###########################</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">10</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Addr
129.130.131.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Mask
255.255.0.255</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt"></td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Net
129.130.0.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Broadcast 129.130.255.132</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" style="height:15pt">Hosts 2^8-2=254</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="" style="height:15pt">###########################</td>
</tr></tbody></table><br>Saluti</div><div>Martino<br><br></div><div><br></div><div><div class="gmail_extra"><br><div class="gmail_quote">Il giorno 20 maggio 2016 00:52, Antonio Prado via Internet-e-architetture-di-rete <span dir="ltr"><<a href="mailto:internet-e-architetture-di-rete@list.informagiovani.comunesbt.it" target="_blank">internet-e-architetture-di-rete@list.informagiovani.comunesbt.it</a>></span> ha scritto:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">cari allievi,<br>
<br>
stasera abbiamo conversato degli spazi di indirizzamento IPv4 e IPv6:<br>
morfologia, notazione, subnetting.<br>
<br>
vi propongo ora qualche esercizio che mi raccomando di iniziare sin da<br>
subito finche' le idee sono fresche.<br>
<br>
dunque, come preannunciato, per ciascun indirizzo dato provate a<br>
calcolare inizio-rete, fine-rete e numero di host numerabili<br>
(considerato che in IPv4 non sono assegnabili agli host l'indirizzo di<br>
inizio rete e l'indirizzo di broadcast).<br>
<br>
faccio un esempio su come formattare l'esercizio:<br>
<br>
###########################<br>
1.<br>
Addr 1. 2. 3. 4<br>
Mask 255.255.255. 0<br>
<br>
Net 1.2.3.0<br>
Broadcast 1.2.3.255<br>
Hosts 2^8-2=254<br>
###########################<br>
<br>
ecco gli esercizi:<br>
<br>
per i cognomi da A a L:<br>
<br>
A-L.<br>
Addr 0. 1. 2. 3<br>
Mask 255.255. 0. 0<br>
Mask 255.254. 0. 0<br>
Mask 254. 0. 0. 0<br>
Mask 192. 0. 0. 0<br>
Mask 240. 0. 0. 0<br>
Mask 255.255.255.240<br>
Mask 255.255.255.252<br>
Mask 255.255.255. 1<br>
Mask 255.255. 64. 0<br>
Mask 255.255. 0.255<br>
<br>
per i cognomi da M a Z:<br>
<br>
M-Z.<br>
Addr 129.130.131.132<br>
Mask 255.255. 0. 0<br>
Mask 255.254. 0. 0<br>
Mask 254. 0. 0. 0<br>
Mask 192. 0. 0. 0<br>
Mask 240. 0. 0. 0<br>
Mask 255.255.255.240<br>
Mask 255.255.255.252<br>
Mask 255.255.255. 1<br>
Mask 255.255. 64. 0<br>
Mask 255.255. 0.255<br>
<br>
ovviamente, come al solito, chiunque puo' partecipare alla<br>
soluzione/discussione<br>
<br>
grazie<br>
--<br>
antonio<br>
<br>
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<br></blockquote></div><br></div></div></div>