Chặng 1,2

enable
conf t
hostname R3
enable secret class
line con 0
password cisco
login
exit
line vty 0 4
password cisco
login
exit
no ip domain-lookup
banner motd #
*********************************
*       Day la router R3        *
*         (mang noi bo)         *
*********************************#
exit

copy run start



============================================

conf t
interface range f0/1-24
shutdown
exit

interface range fa0/6, fa0/11, fa0/18
switchport mode access
no shut
exit

vlan 10
name faculty
vlan 20
name student
vlan 30
name guest
vlan 99
name management
exit

interface range fa0/6-10
switchport access vlan 30
interface range fa0/11-17
switchport access vlan 10
interface range fa0/18-24
switchport access vlan 20
exit

int vlan 99
ip address 172.17.99.11 255.255.255.0
no shut

interface range fa0/1-5
switchport mode trunk
switchport trunk native vlan 99
no shutdown
end
copy run start