subnet	beginning_add	enning_add	     mask	 assignment

  1	 192.168.1.0	192.168.1.31	255.255.255.224	

  2	 192.168.1.32	192.168.1.63	255.255.255.224

  3	 192.168.1.64	192.168.1.95	255.255.255.224

  4	 192.168.1.96	192.168.1.127	255.255.255.224	  First Floor LAN Subnet

  5	 192.168.1.128	192.168.1.143	255.255.255.240

  6	 192.168.1.144	192.168.1.159	255.255.255.240	  Second Floor LAN Subnet

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cavo console da HOST 1 a BULDING 1 (router)
//    //     // HOST 2 a 1° FLOOR SWITCH
//    //     // HOST 3 a 2° FLOOR SWITCH

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HOST 1 -> TERMINAL:

>en
#conf term
#int g0/0
#ip add 192.168.1.126 255.255.255.224
#no sh
#exit
#int g0/1
#ip add 192.168.1.158 255.255.255.240
#no sh

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HOST 3 -> TERMINAL:

>en
#conf term
#int vlan 1
#ip add 192.168.1.157 255.255.25.240
#no sh
#exit

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HOST 1 -> IP CONFIGURATION:

IP: 192.168.1.97
SM: 255.255.255.224
GATEWAY: 192.168.1.126

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HOST 2 -> IP CONFIGURATION:

IP: 192.168.1.98
SM: 255.255.255.224
GATEWAY: 192.168.1.126

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HOST 3 -> IP CONFIGURATION:

IP: 192.168.1.145
SM: 255.255.255.240
GATEWAY: 192.168.1.158

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TFTP SERVER -> IP CONFIGURATION:

IP: 192.168.1.146
SM: 255.255.255.240
GATEWAY: 192.168.1.158

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HOST 1 -> TERMINAL:

#exit
#hostname Middle
#enable secret class
#line console 0
#password class
#login
#exit
#security passwords min-length 10
#service password-encryption
#ip domain-name cisco.com
#crypto key generate rsa
1024 (invio x2)
#username netadmin secret cisco_CCNA5
#line vty 0 4
#login local
#transport input ssh
#exit
#int g0/0
#ipv6 add (indirizzo abella)/64
#ipv6 add fe80::1 link-local
#description To_First_Floor_LAN
#exit
#int g0/1
##ipv6 add (indirizzo abella)/64
#ipv6 add fe80::1 link-local
#description To_Second_Floor_LAN

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HOST 3 -> TERMINAL:

#line vty 0 4
#password class
#login
#exit
#ip default-gateway 192.168.1.158

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HOST 1 -> IP CONFIGURATION: ipv6 tabella + gateway: fe80::1
(fare ipv6 anche per HOST 2, HOST 3 e TFTP SERVER; controllare se è attivo il servizio:
TFTP SERVER -> SERVICES -> TFTP -> ON)

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HOST 1 -> TERMINAL:

#exit(x2)
#copy running-config tftp
192.168.1.146 (invio)
#conf term
#banner motd #welcome#