Inter VLAN Configuration | CCNA tutorial | Network Zeal
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InterVLAN refers to Inter-VLAN routing,
InterVLAN refers to Inter-VLAN routing, which is the process of forwarding network traffic from one VLAN (Virtual Local Area Network) to another VLAN using a router or a Layer 3 switch. VLANs are used to segment a network into smaller, isolated broadcast domains, improving performance and security. However, devices in different VLANs cannot communicate directly without a routing mechanism.
Here are the basic steps involved in setting up InterVLAN routing:
1. **Create VLANs**: Define the VLANs on your switch and assign ports to the appropriate VLANs.
2. **Assign IP Addresses**: Assign IP addresses to each VLAN interface on the router or Layer 3 switch.
3. **Configure Routing**: Enable routing on the device and configure static routes or use a routing protocol if needed.
4. **Configure VLAN Interfaces (SVIs)**: On a Layer 3 switch, create Switch Virtual Interfaces (SVIs) for each VLAN and assign the appropriate IP addresses.
5. **Testing**: Ensure that devices in different VLANs can communicate with each other through ping tests or other methods.
Example Configuration on a Layer 3 Switch
Creating VLANs
```plaintext
Switch(config)# vlan 10
Switch(config-vlan)# name Sales
Switch(config-vlan)# exit
Switch(config)# vlan 20
Switch(config-vlan)# name Marketing
Switch(config-vlan)# exit
```
Assigning Ports to VLANs
```plaintext
Switch(config)# interface range fa0/1 - 12
Switch(config-if-range)# switchport mode access
Switch(config-if-range)# switchport access vlan 10
Switch(config-if-range)# exit
Switch(config)# interface range fa0/13 - 24
Switch(config-if-range)# switchport mode access
Switch(config-if-range)# switchport access vlan 20
Switch(config-if-range)# exit
```
Configuring SVIs
```plaintext
Switch(config)# interface vlan 10
Switch(config-if)# ip address 192.168.10.1 255.255.255.0
Switch(config-if)# no shutdown
Switch(config-if)# exit
Switch(config)# interface vlan 20
Switch(config-if)# ip address 192.168.20.1 255.255.255.0
Switch(config-if)# no shutdown
Switch(config-if)# exit
```
Enabling IP Routing
```plaintext
Switch(config)# ip routing
```
After these steps, the Layer 3 switch will route traffic between VLAN 10 and VLAN 20. Devices in VLAN 10 will use the SVI 192.168.10.1 as their default gateway, and devices in VLAN 20 will use 192.168.20.1 as their default gateway.
If you have any specific questions or need more details on a particular aspect of InterVLAN routing, feel free to ask!
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در تاریخ 1403/05/14 منتشر شده
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