[Internet-e-architetture-di-rete] esercizio routing statico
Mauro Angiolillo
m.angiolillo at comuneap.gov.it
Tue Apr 26 20:37:49 CEST 2016
Salve prof, come promesso provo a postare in lista la mia soluzione all'esercizio relativo alla
parte di connettività ipv6, cercando di commentare il più possibile lo svolgimento.
In allegato il diagramma delle reti dell'esercizio.
Il prefisso scelto per il sito in questione è il seguente:
(ULA Global ID generato casualmente)
fdd5:5509:a9e::/48
Il range degli indirizzi IPV6 sarà, quindi:
fdd5:5509:a9e:: - fdd5:5509:a9e:ffff:ffff:ffff:ffff:ffff
Ho scelto, quindi, di sezionare la mia /48 in questo modo:
i primi 8 bit del terzo gruppo identificano il building (mantengo la possibilità di espansione orizzontale)
i secondi 8 del terzo gruppo identificano il piano (espansione verticale della struttura)
in questo modo ho 256 building (/56) (ciascuno con 256 possibili piani /64)
Per i collegamenti tra i router utilizzo gli indirizzi link-local del tipo fe80::/126.
Esempio:
fdd5:5509:a9e:100::/64 -> Building A - Piano 0
fdd5:5509:a9e:101::/64 -> Building A - Piano 1
fdd5:5509:a9e:102::/64 -> Building A - Piano 2
fdd5:5509:a9e:108::/64 -> Building A - Piano 8
fdd5:5509:a9e:1ff::/64 -> Building A - Rete connessa a RA
fdd5:5509:a9e:200::/64 -> Building B - Piano 0
fdd5:5509:a9e:301::/64 -> Building C - Piano 1
fdd5:5509:a9e:80a::/64 -> Building H - Piano 10
Configurazioni router
=====================
==============================================================
Building A [ fdd5:5509:a9e:100::/56 ]
==============================================================
Router RA0
----------
interface a : fdd5:5509:a9e:100::1/64
interface b : fe80::2/126 (verso RA)
Tabella di routing
------------------
Destination Next Hop If
fdd5:5509:a9e:100::/64 :: a
fe80::/126 :: b
fdd5:5509:a9e::/48 fe80::1 b
Router RA1
----------
interface a : fdd5:5509:a9e:101::1/64
interface b : fe80::6/126 (verso RA)
Tabella di routing
------------------
Destination Next Hop If
fdd5:5509:a9e:101::/64 :: a
fe80::4/126 :: b
fdd5:5509:a9e::/48 fe80::5 b
Router RA2
----------
interface a : fdd5:5509:a9e:102::1/64
interface b : fe80::a/126 (verso RA)
Tabella di routing
------------------
Destination Next Hop If
fdd5:5509:a9e:102::/64 :: a
fe80::8/126 :: b
fdd5:5509:a9e::/48 fe80::9 b
Router RA
---------
interface a : fdd5:5509:a9e:1ff::1/64
interface w : fe80::1/126 (verso RA0)
interface x : fe80::5/126 (verso RA1)
interface y : fe80::9/126 (verso RA2)
interface z1 : fe80::11/126 (verso RB)
interface z2 : fe80::15/126 (verso RC)
Tabella di routing
------------------
Destination Next Hop If
fdd5:5509:a9e:1ff::/64 :: a
fe80::/126 :: w
fe80::4/126 :: x
fe80::8/126 :: y
fe80::10/126 :: z1
fe80::14/126 :: z2
fdd5:5509:a9e:100::/64 fe80::2 w
fdd5:5509:a9e:101::/64 fe80::6 x
fdd5:5509:a9e:102::/64 fe80::a y
fdd5:5509:a9e:200::/56 fe80::12 z1
fdd5:5509:a9e:300::/56 fe80::16 z2
==============================================================
Building B [ fdd5:5509:a9e:200::/56 ]
==============================================================
Router RB0
----------
interface a : fdd5:5509:a9e:200::1/64
interface b : fe80::2/126
Tabella di routing
------------------
Destination Next Hop If
fdd5:5509:a9e:200::/64 :: a
fe80::/126 :: b
fdd5:5509:a9e::/48 fe80::1 b
Router RB1
----------
interface a : fdd5:5509:a9e:201::1/64
interface b : fe80::6/126
Tabella di routing
------------------
Destination Next Hop If
fdd5:5509:a9e:201::/64 :: a
fe80::4/126 :: b
fdd5:5509:a9e::/48 fe80::5 b
Router RB2
----------
interface a : fdd5:5509:a9e:202::1/64
interface b : fe80::a/126
Tabella di routing
------------------
Destination Next Hop If
fdd5:5509:a9e:202::/64 :: a
fe80::8/126 :: b
fdd5:5509:a9e::/48 fe80::9 b
Router RB
---------
interface a : fdd5:5509:a9e:2ff::1/64
interface w : fe80::1/126
interface x : fe80::5/126
interface y : fe80::9/126
interface z1 : fe80::12/126 (verso RA)
interface z2 : fe80::1a/126 (verso RC)
Tabella di routing
------------------
Destination Next Hop If
fdd5:5509:a9e:2ff::/64 :: a
fe80::/126 :: w
fe80::4/126 :: x
fe80::8/126 :: y
fe80::10/126 :: z1
fe80::18/126 :: z2
fdd5:5509:a9e:200::/64 fe80::2 w
fdd5:5509:a9e:201::/64 fe80::6 x
fdd5:5509:a9e:202::/64 fe80::a y
fdd5:5509:a9e:100::/56 fe80::11 z1
fdd5:5509:a9e:300::/56 fe80::19 z2
==============================================================
Building C [ fdd5:5509:a9e:300::/56 ]
==============================================================
Router RC0
----------
interface a : fdd5:5509:a9e:300::1/64
interface b : fe80::2/126
Tabella di routing
------------------
Destination Next Hop If
fdd5:5509:a9e:300::/64 :: a
fe80::/126 :: b
fdd5:5509:a9e::/48 fe80::1 b
Router RC1
----------
interface a : fdd5:5509:a9e:301::1/64
interface b : fe80::6/126
Tabella di routing
------------------
Destination Next Hop If
fdd5:5509:a9e:301::/64 :: a
fe80::4/126 :: b
fdd5:5509:a9e::/48 fe80::5 b
Router RC2
----------
interface a : fdd5:5509:a9e:302::1/64
interface b : fe80::a/126
Tabella di routing
------------------
Destination Next Hop If
fdd5:5509:a9e:302::/64 :: a
fe80::8/126 :: b
fdd5:5509:a9e::/48 fe80::9 b
Router RC
---------
interface a : fdd5:5509:a9e:3ff::1/64
interface w : fe80::1/126
interface x : fe80::5/126
interface y : fe80::9/126
interface z1 : fe80::19/126
interface z2 : fe80::16/126
Tabella di routing
------------------
Destination Next Hop If
fdd5:5509:a9e:3ff::/64 :: a
fe80::/126 :: w
fe80::4/126 :: x
fe80::8/126 :: y
fe80::18/126 :: z1
fe80::14/126 :: z2
fdd5:5509:a9e:300::/64 fe80::2 w
fdd5:5509:a9e:301::/64 fe80::6 x
fdd5:5509:a9e:302::/64 fe80::a y
Di seguito le route mancanti che impediscono l'instradamento da RC verso RA e RB
fdd5:5509:a9e:200::/56 fe80::1a z1
fdd5:5509:a9e:100::/56 fe80::15 z2
Augurandomi di non aver commesso troppi errori, auguro a tutti una buona serata.
Mauro
--
Dott. Ing. Mauro Angiolillo
Linux Registered User #343216
GnuPG-Key fingerprint = 90A3 3F92 6008 7383 A569 E952 CF97 383B 63F6 F425
-*-
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