Cấu hình Inter-VLAN dùng SVI trên Switch L3
Cho sơ đồ:

Trên các PC:
set pcname PC10
ip 192.168.10.10/24 192.168.10.1
ip dns 8.8.8.8
save
show ip all
set pcname PC11
ip 192.168.10.11/24 192.168.10.1
ip dns 8.8.8.8
save
show ip all
set pcname PC20
ip 192.168.20.20/24 192.168.10.1
ip dns 8.8.8.8
save
show ip all
set pcname PC21
ip 192.168.20.21/24 192.168.10.1
ip dns 8.8.8.8
save
show ip all
i86bi_linux_l2-adventerprisek9-ms.SSA.high_iron_20190423int f0/0.10
encapsulation dot1q 10
ip add 192.168.10.1 255.255.255.0
ip nat inside
ex
int f0/0.20
encapsulation dot1q 20
ip add 192.168.20.1 255.255.255.0
ip nat inside
ex
access-list 1 permit 192.168.1.0 0.0.0.255
access-list 1 permit 192.168.10.0 0.0.0.255
access-list 1 permit 192.168.20.0 0.0.0.255
ip nat inside source list 1 interface F0/1 overload
ip domain-lookup
ip name-server 8.8.8.8
no ip cef
show running-config
show ip interface brief
show ip nat translations
en
conf t
hostname SWCore
vtp mode server
vtp domain dtu.vn
vtp password dtu@123
vlan 10
name TaiChinh
exit
vlan 20
name KeToan
exit
interface range e3/0 - 3
switchport trunk encapsulation dot1q
switchport mode trunk
exit
interface VLAN 1
no shutdown
ip address 192.168.1.254 255.255.255.0
exit
show vlan
show vtp status
show vtp password
show interface e3/1 trunk
SWCore(config)#spanning-tree vlan 1 priority 4096
SWCore(config)#spanning-tree vlan 10 priority 4096
en
conf t
hostname Switch1
vtp mode client
vtp domain dtu.vn
vtp password dtu@123
interface e3/1
switchport trunk encapsulation dot1q
switchport mode trunk
exit
interface VLAN 1
no shutdown
ip address 192.168.1.11 255.255.255.0
exit
interface range e0/0 - 3
switchport mode access
switchport access vlan 10
exit
interface range e1/0 - 3
switchport mode access
switchport access vlan 20
exit
show vlan
show vtp status
show vtp password
show interface e3/1 trunk
Switch1(config)#spanning-tree vlan 20 priority 4096
en
conf t
hostname Switch2
vtp mode client
vtp domain dtu.vn
vtp password dtu@123
interface e3/2
switchport trunk encapsulation dot1q
switchport mode trunk
exit
interface VLAN 1
no shutdown
ip address 192.168.1.22 255.255.255.0
exit
interface range e0/0 - 3
switchport mode access
switchport access vlan 10
exit
interface range e1/0 - 3
switchport mode access
switchport access vlan 20
exit
show vlan
show vtp status
show vtp password
show interface e3/2 trunk
Switch2(config)#spanning-tree vlan 20 priority 4096