<p dir="ltr">Partiamo dal presupposto che il discorso reti potrebbe essere lungo e snervante ... quindi 'greppiamo' un po e quagliamo la situazione ;)</p>
<p dir="ltr">Importante da sapere<br>
* inet ed inet6 indicano le rispettive famiglie di appartenenza (inet = ipv4 - inet6 = ipv6)</p>
<p dir="ltr">* brd sta per broadcast (te la faccio semplice: su un network "/24" avrai un NETWORK ID [192.168.0.0] degli IP ADDRESS fruibili [192.168.1.1-254] ed un BROADCAST ADDRESS [192.168.0.255] ) ok .... vero si parlava di MAC ADDRESS ma DOVEVO fare questa premessa, quindi non essendo il MAC ADDRESS come un indirizzo IP assegnato dinamicamente o staticamente ma univoco per ogni singolo "pezzo" hardware di rete ff:ff:ff:ff:ff:ff è proprio il broadcast di OGNI scheda/componente di rete</p>
<p dir="ltr">* link scope local / link scope global<br>
A differenza di ipv4, il suo successore ha un indirizzo "locale" (fe80::) ed uno "globale", quest ultimo consente al device di dialogare all'esterno</p>
<p dir="ltr">* altre interfacce 1<br>
(gre0 sit0) interfacce da assegnare in caso di tunnel/vpn</p>
<p dir="ltr">* altre interfacce 2<br>
Eth0/1_real e wifi0 "se non ricordo male" vengono create proprio da AirOS a fronte di sue funzionalità che non è che ci interessino un gran chè</p>
<p dir="ltr">Per il resto ti invito, a tuo tempo libero, a fare una ricerca su goole parendo dai fondamenti di rete, si lo so è noioso ma ne vale la pena.</p>
<p dir="ltr">Sul wiki di ninux dovrebbe esserci qualche documentazione in merito/slide/appunti.</p>
<p dir="ltr">Spero di essere stato sinteticamente esplicativo ;)</p>
<p dir="ltr">--<br>
Arka</p>
<div class="gmail_quote">Il 24/nov/2013 23:21 "Nemesis" <<a href="mailto:nemesis@ninux.org">nemesis@ninux.org</a>> ha scritto:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<font face="Helvetica, Arial, sans-serif">Scusate per il burst di
email ma ho tanti dubbi e spero che mi aiuterete a chiarirli.
Penso che <font face="Helvetica, Arial, sans-serif">le eventuali
risposte torneranno utili anche ad altri.</font><br>
<br>
<font face="Helvetica, Arial, sans-serif">Ecco l'outp<font face="Helvetica, Arial, sans-serif">ut sul mio device
(10.40.0.1, Ubiquiti RocketM5<font face="Helvetica, Arial,
sans-serif"> con AirOS</font>):<br>
</font></font></font>
<blockquote><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">1:
lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue </font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> link/loopback
00:00:00:00:00:00 brd 00:00:00:00:00:00</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> inet <a href="http://127.0.0.1/8" target="_blank">127.0.0.1/8</a>
scope host lo</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> inet6 ::1/128
scope host </font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> valid_lft
forever preferred_lft forever</font></font></font></font><br>
</blockquote>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">fin qui ci sono,<font face="Helvetica, Arial, sans-serif"> anche se non so
perchè</font> <font face="Helvetica, Arial, sans-serif">l'mtu
è 16436<font face="Helvetica, Arial, sans-serif"> mentre
solitamente è 1500.</font></font><br>
</font></font></font></font>
<blockquote><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">2:
gre0: <NOARP> mtu 1476 qdisc noop </font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> link/gre 0.0.0.0
brd 0.0.0.0</font></font></font></font><br>
</blockquote>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">Questa non l<font face="Helvetica, Arial, sans-serif">'ho capita.</font><br>
</font></font></font></font>
<blockquote><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">3:
eth0_real: <BROADCAST,MULTICAST,PROMISC,UP> mtu 1500
qdisc pfifo_fast qlen 500</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> link/ether
00:27:22:17:8b:12 brd ff:ff:ff:ff:ff:ff</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> inet6
fe80::227:22ff:fe17:8b12/64 scope link </font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> valid_lft
forever preferred_lft forever</font></font></font></font><br>
</blockquote>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">Idem<br>
</font></font></font></font>
<blockquote><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">4:
eth1_real:
<NO-CARRIER,BROADCAST,MULTICAST,PROMISC,UP> mtu 1500
qdisc pfifo_fast qlen 500</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> link/ether
02:27:22:17:8b:12 brd ff:ff:ff:ff:ff:ff</font></font></font></font><br>
</blockquote>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif">Boh!</font><br>
</font></font></font></font>
<blockquote><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">5:
sit0: <NOARP> mtu 1480 qdisc noop </font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> link/sit 0.0.0.0
brd 0.0.0.0</font></font></font></font><br>
</blockquote>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif">Che minchia è s<font face="Helvetica,
Arial, sans-serif">it0 <NOARP></font>?</font><br>
</font></font></font></font>
<blockquote><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">6:
eth0: <BROADCAST,MULTICAST,ALLMULTI,PROMISC,UP> mtu
1500 qdisc noqueue </font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> link/ether
00:27:22:17:8b:12 brd ff:ff:ff:ff:ff:ff</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> inet <a href="http://10.40.0.1/24" target="_blank">10.40.0.1/24</a>
brd 10.40.0.255 scope global eth0</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> inet6
2001:4c00:893b:fede::1/64 scope global </font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> valid_lft
forever preferred_lft forever</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> inet6
fe80::227:22ff:fe17:8b12/64 scope link </font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> valid_lft
forever preferred_lft forever</font></font></font></font><br>
</blockquote>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif">ok, <font face="Helvetica, Arial,
sans-serif">questa è l'interfaccia ethernet.<br>
<br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">cosa è inet6
con scope link?<br>
<font face="Helvetica, Arial, sans-serif">cos'è
brd </font></font></font></font></font></font></font></font></font></font></font><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">ff:ff:ff:ff:ff:ff
dopo il mac address<font face="Helvetica, Arial, sans-serif">?</font></font></font></font></font></font></font></font></font></font></font></font><br>
</font></font></font></font>
<blockquote><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">7:
wifi0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc
ath_wme qlen 500</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> link/ether
00:27:22:16:8b:12 brd ff:ff:ff:ff:ff:ff</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> inet6
fe80::227:22ff:fe16:8b12/64 scope link </font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> valid_lft
forever preferred_lft forever</font></font></font></font><br>
</blockquote>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">Dice wifi0 ma
l'Indirizzo ip della scheda w<font face="Helvetica, Arial,
sans-serif">ifi non è presente quindi ded<font face="Helvetica, Arial, sans-serif">uco abbia un altr<font face="Helvetica, Arial, sans-serif">o uso.</font></font></font><br>
</font></font></font></font>
<blockquote><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">8:
ath0: <BROADCAST,MULTICAST,ALLMULTI,PROMISC,UP> mtu
1500 qdisc noqueue </font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> link/ether
00:27:22:16:8b:12 brd ff:ff:ff:ff:ff:ff</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> inet
<a href="http://172.16.40.24/16" target="_blank">172.16.40.24/16</a> brd 172.16.255.255 scope global ath0</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> inet6
2001:4c00:893b:1:40::24/128 scope global </font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> valid_lft
forever preferred_lft forever</font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> inet6
fe80::227:22ff:fe16:8b12/64 scope link </font></font></font></font><br>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"> valid_lft
forever preferred_lft forever</font></font></font></font><br>
</blockquote>
<font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">Questa è la scheda wifi.<br>
<br>
<font face="Helvetica, Arial, sans-serif">Inoltre, sapete
mica cosa significano:<br>
</font></font></font></font></font>
<ul>
<li><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif">qdisc</font></font></font></font></li>
<li><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif">pfifo_fast</font></font></font></font></li>
<li><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif">qlen 500</font></font></font></font></li>
<li><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif"><font face="Helvetica, Arial, sans-serif">noqueue</font></font></font></font></font></li>
<li><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">valid_lft
forever</font></font></font></font></font></font></font></li>
<li><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif">prefer<font face="Helvetica, Arial, sans-serif">red<font face="Helvetica, Arial, sans-serif">_lft
forever</font></font></font></font></font></font></font></font></font></li>
<li><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif">NO-CARRIER</font></font></font></font></li>
<li><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif">BROADCAST</font></font></font></font></li>
<li><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif">MULTICAST</font></font></font></font></li>
<li><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif">PROMISC</font></font></font></font></li>
<li><font face="Helvetica, Arial, sans-serif"><font face="Helvetica, Arial, sans-serif"><font face="Helvetica,
Arial, sans-serif"><font face="Helvetica, Arial,
sans-serif">UP (suppongo <font face="Helvetica, Arial,
sans-serif">che l'interfaccia sia at<font face="Helvetica, Arial, sans-serif">tiva?)</font></font></font></font></font></font></li>
</ul>
<p><font face="Helvetica, Arial, sans-serif">Non mi mandate a cagare
sono solo un povero sviluppatore web che cerca di cap<font face="Helvetica, Arial, sans-serif">ire meglio come funzionano
le reti!</font></font><br>
</p>
<p>Nemesis<br>
</p>
</div>
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<br></blockquote></div>