! Configuration routeur 1841

enable
configure terminal

interface GigabitEthernet0/0
 ip address 172.17.25.2 255.255.255.252
 no shutdown
exit

interface GigabitEthernet0/1
 no shutdown
exit

interface GigabitEthernet0/1.10
 encapsulation dot1Q 10
 ip address 172.17.10.1 255.255.255.0
 no shutdown
exit

interface GigabitEthernet0/1.20
 encapsulation dot1Q 20
 ip address 172.17.20.1 255.255.255.0
 no shutdown
exit

interface GigabitEthernet0/1.30
 encapsulation dot1Q 30
 ip address 172.17.30.1 255.255.255.0
 no shutdown
exit

! Configuration commutateur 2960

enable
configure terminal

vlan 10
 name Staff
exit

interface range FastEthernet0/11 - 17
 switchport mode access
 switchport access vlan 10
 no shutdown
exit

vlan 20
 name Students
exit

interface range FastEthernet0/18 - 24
 switchport mode access
 switchport access vlan 20
 no shutdown
exit

vlan 30
 name Guest
exit

interface range FastEthernet0/6 - 10
 switchport mode access
 switchport access vlan 30
 no shutdown
exit

interface GigabitEthernet0/1
 switchport mode trunk
 no shutdown
exit