Virtual LAN Routing Commands

This section describes the commands you use to view and configure VLAN routing and to view VLAN routing status information.

vlan routing

This command enables routing on a VLAN. The vlanid value has a range from 1 to 4093. The [interface ID] value has a range from 1 to 128. Typically, you will not supply the interface ID argument, and the system automatically selects the interface ID. However, if you specify an interface ID, the interface ID becomes the port number in the unit/slot/port for the VLAN routing interface. If you select an interface ID that is already in use, the CLI displays an error message and does not create the VLAN interface. For products that use text based configuration, including the interface ID in the vlan routing command for the text configuration ensures that the unit/slot/port for the VLAN interface stays the same across a restart. Keeping the unit/slot/port the same ensures that the correct interface configuration is applied to each interface when the system restarts.

• Format: vlan routing <vlanid> [interface ID]
• Mode: VLAN Config

no vlan routing

This command deletes routing on a VLAN. The <vlanid> value has a range from 1 to 4094.

• Format: no vlan routing <vlanid>
• Mode: VLAN Config

show ip vlan

This command displays the VLAN routing information for all VLANs with routing enabled.

• Format: show ip vlan
• Modes: Privileged EXEC/User EXEC
• MAC Address used by Routing VLANs: The MAC Address associated with the internal bridge-router interface (IBRI). The same MAC Address is used by all VLAN routing interfaces. It will be displayed above the per-VLAN information.
• VLAN ID: The identifier of the VLAN.
• Logical Interface: The logical unit/slot/port associated with the VLAN routing interface.
• IP Address: The IP address associated with this VLAN.
• Subnet Mask: The subnet mask that is associated with this VLAN.