使用三層交換機實現VLAN間通訊

2021-08-09 11:27:33 字數 4218 閱讀 1156

實現pc0能與pc1、pc2、pc3通訊

1.先配置使得vlan內通訊,vlan間通訊隔離

對switch0

switch>ena

switch#conf t

enter configuration commands, one per line. end with cntl/z.

switch(config)#vlan 10

switch(config-vlan)#exit

switch(config)#vlan 20

switch(config-vlan)#exit

switch(config)#int f0/23

switch(config-if)#switchport mode access

switch(config-if)#switchport access vlan 20

switch(config-if)#int f0/24

switch(config-if)#switchport mode access

switch(config-if)#switchport access vlan 10

switch(config-if)#int f0/1

switch(config-if)#switchport mode trunk

switch(config-if)#

%lineproto-5-updown: line protocol on inte***ce fastethernet0/1, changed state to down

%lineproto-5-updown: line protocol on inte***ce fastethernet0/1, changed state to up

switch(config-if)#switchport trunk allowed vlan all

switch(config-if)#no shutdown

對switch1

switch>ena

switch#conf t

enter configuration commands, one per line. end with cntl/z.

switch(config)#vlan 10

switch(config-vlan)#exit

switch(config)#vlan 20

switch(config-vlan)#exit

switch(config-if)#int f0/24

switch(config-if)#switchport mode access

switch(config-if)#switchport access vlan 10

switch(config-if)#int f0/23

switch(config-if)#switchport mode access

switch(config-if)#switchport access vlan 20

switch(config-if)#int f0/1

switch(config-if)#switchport mode trunk

switch(config-if)#

%lineproto-5-updown: line protocol on inte***ce fastethernet0/1, changed state to down

%lineproto-5-updown: line protocol on inte***ce fastethernet0/1, changed state to up

switch(config-if)#switchport trunk allowed vlan all

switch(config-if)#no shutdown

對三層交換機

switch>ena

switch#conf t

enter configuration commands, one per line. end with cntl/z.

switch(config)#vlan 10

switch(config-vlan)#exit

switch(config)#vlan 20

switch(config-vlan)#exit

switch(config)#int f0/1

switch(config-if)#switchport mode trunk //直接設定trunk口

command rejected: an inte***ce whose trunk encapsulation is "auto" can not be configured to "trunk" mode.

switch(config-if)#switchport trunk allowed vlan all

switch(config-if)#no shutdown

switch(config-if)#int f0/2

switch(config-if)#switchport trunk encapsulation dot1q //以dot1q封裝埠

switch(config-if)#switchport mode trunk //將埠設定為trunk模式

switch(config-if)#switchport trunk allowed vlan all

switch(config-if)#no shutdown

switch(config-if)#end

此時已經配置完成vlan內可以通訊,vlan間通訊隔離

先設定主機ip

2.在三層交換機上配svi

switch>ena

switch#conf t

enter configuration commands, one per line. end with cntl/z.

switch(config)#int vlan 10

switch(config-if)#

%link-5-changed: inte***ce vlan10, changed state to up

%lineproto-5-updown: line protocol on inte***ce vlan10, changed state to up

switch(config-if)#ip add 192.168.10.1 255.255.255.0

switch(config-if)#no shutdown

switch(config-if)#exit

switch(config)#int vlan 20

switch(config-if)#

%link-5-changed: inte***ce vlan20, changed state to up

%lineproto-5-updown: line protocol on inte***ce vlan20, changed state to up

switch(config-if)#ip add 192.168.20.1 255.255.255.0

switch(config-if)#no shutdown

switch(config-if)#exit

3.在三層交換機上開啟路由功能

switch(config)#ip routing

4.設定主機閘道器(相應vlan svi)

pc0:192.168.10.1

pc1:192.168.20.1

pc2:192.168.10.1

pc3:192.168.20.1

對pc0

已實現vlan間通訊

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