The purpose of configuring a Layer 3 routing switch is to communicate between different switches and different vlan hosts
On the basis of (1. Configuring a two-layer switch) replace the building switch with a three-layer routable switch
To configure a two-layer switch, you can find " 1. Configuring a two-layer switch "
1. Directly configure the Layer 3 routing switch:
Click on the switch to select the CLI tab and enter:
switch>enable //Enter privileged mode
switch#configure terminal //configure terminal
switch(config)#vlan 10
switch(config-vlan)#vlan 20 //Create vlan 10 and 20
switch(config-vlan)#exit
switch(config)#interface vlan 10 //进入vlan 10
switch(config-vlan)#ip address 202.206.79.100 255.255.255.0 //Specify port for vlan 10
switch(config-vlan)#exit
switch(config)#interface vlan 20 //进入vlan 20
switch(config-vlan)#ip address 202.206.78.100 255.255.255.0 //Specify port for vlan 20
switch(config-vlan)#no shutdown //Do not close port activation
switch(config-vlan)#ip routing //Enable the ip routing function, the default is closed, now it is open
switch(config-vlan)#do show ip route //View routing table
As shown above, 202.206.78.0/24 is directly connected to vlan 20
202.206.79.0/24 is directly connected vlan 10
The configuration is complete here, and the following is tested
2. Test ping gateways between different vlans
Ping on PC0 in vlan 10 of the switch on the first floor, the gateway of vlan 20
ping 202.206.78.100
As shown above, it is passed. If it fails, check whether the configuration information of each IP, gateway, and switch is correct.
3. Test ping hosts between different vlans and different switches
Ping PC0 on the first-floor switch vlan 10, and PC6 on the second-floor switch vlan20
ping 202.206.78.3
As shown above, it is passed. If it fails, check whether the configuration information of each IP, gateway, and switch is correct.
If the gateway is connected, but the host is not connected, please check whether the ports of each switch are correct.
It's over!