@ Cenjeal by two ways data communication between vlan
1. Use two-layer switch + router (one-arm routing)
1.1 PC1 configuration
Manually configure pc1's IP address: 192.168.2.10
Subnet mask: 255.255.255.0
Gateway: 192.168.2.1
1.2 PC2 configuration
Manually configure pc2's IP address: 192.168.3.10
Subnet mask: 255.255.255.0
Gateway: 192.168 .3.1
2. Switch configuration
1. Enter the commands vlan 2 and vlan 3 to divide vlan2 and vlan3
2. Enter interface e0/0/1, because it is connected to PC1, set the interface mode to access, and the default vlan is vlan2
3. Enter interface e0/0 /2, because it is connected to PC2, the interface mode is set to access, and the default vlan is vlan3
. 4. Enter interface g0/0/1. Because it is connected to the router, set the interface mode to trunk. By default, all vlans are allowed to pass (port trunk allow -pass vlan all)
3. Router configuration
1. Enter the command int g0/0/0 to enter the interface 0
enter the command undo shutdown to enable the interface
2. Enter the command int g0/0/0.1 to enter the sub-interface 0.1,
enter the command vlan-type dot1q 2 default, use vlan 2 as the default vlan under this sub-interface,
enter the command ip add 192.168.2.1 255.255.255.0 to configure the address under the vlan
3. Enter the command int g0/0/0.2 to enter the sub-interface 0.2,
enter the command vlan-type dot1q 3 default, use vlan 3 as the default vlan under this sub-interface,
enter the command ip add 192.168.3.1 255.255.255.0 to configure the address under the vlan
4. PC1 ping PC2 IP address, the test found that it can be pinged
2. Use a three-tier switch
Switch configuration
1. Enter the command vlan 2 and vlan 3 to divide vlan2 and vlan3
2.1
Enter the command int g0/0/1 to enter interface 1 and
enter the command port link-type access to set the interface mode to access and
enter the command port default vlan 2 to set the default vlan to vlan2
2.2
Enter the command int g0/0/2 to enter the interface 2
enter the command port link-type access to set the interface mode to access
enter the command port default vlan 3 to set the default vlan to vlan3
3.1
Enter the command int vlanif 2 to enter vlan 2 and
enter the command ip add 192.168.2.1 24 to configure the address
3.2
Enter the command int vlanif 3 to enter vlan 3 and
enter the command ip add 192.168.3.1 24 to configure the address
4. PC3 ping PC4, the test found that it can be pinged
