Mạng LAN ảo

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Chia vlan

Bước 1: Tạo Vlan

  • R1
int g0/1
switchport mode trunk

vlan 101
name Hanhchanh
vlan 102
name Kinhdoanh
vlan 103
name Ketoan
exit

vtp mode server
vtp domain ABC
vtp pass 123
  • R2
vtp mode client
vtp domain ABC
vtp pass 123

Bước 2: Đưa port vào Vlan

int range f0/1-2
switchport mode access 
switchport access vlan 101

... (tương tự cho đưa port vào vlan phù hợp)

Inter Vlan

Cách 1: Sub interface

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  • Router
int g0/0
no shut
ip address 192.168.1.254 255.255.255.0

int g0/0.1
encapsulation dot1Q 101
ip address 192.168.101.254 255.255.255.0
int g0/0.2
encapsulation dot1Q 102
ip address 192.168.102.254 255.255.255.0
int g0/0.3
encapsulation dot1Q 103
ip address 192.168.103.254 255.255.255.0

Cách 2: SW Layer 3

image

  • Core
conf t
ip routing
int vlan 1
no shut
ip add 192.168.1.254 255.255.255.0
int vlan 101
ip add 192.168.101.254 255.255.255.0
int vlan 102
ip add 192.168.102.254 255.255.255.0
int vlan 103
ip add 192.168.103.254 255.255.255.0