1-1
1 VLAN Interface Configuration
Overview
For details about VLAN, refer to VLAN Configuration.
For hosts of different VLANs to communicate, you must use a router or Layer 3 switch to perform layer
3 forwarding. To achieve this, VLAN interfaces are used.
VLAN interfaces are virtual interfaces used for Layer 3 communication between different VLANs. They
do not exist as physical entities on devices. For each VLAN, you can create one VLAN interface. You
can assign the VLAN interface an IP address and specify it as the gateway of the VLAN to forward the
traffic destined for an IP network segment different from that of the VLAN.
Configuring VLAN Interfaces
Configuration Task List
Perform the tasks in Table 1-1 to configure a VLAN interface:
Table 1-1 VLAN interface configuration task list
Task Remarks
Creating a VLAN Interface
Required
Create a VLAN interface. You can select to assign an IPv4 address
to the VLAN interface in this step or in a separate step.
Before creating a VLAN interface for a VLAN, create the VLAN first
(select Network > VLAN). For detailed configuration, refer to VLAN
Configuration.
Modifying a VLAN Interface
Optional
Assign an IPv4 address to the VLAN interface; shut down or bring up
the VLAN interface.
Creating a VLAN Interface
Select Network > VLAN Interface from the navigation tree and click Create to enter the page for
creating a VLAN interface, as shown in
Figure 1-1.
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