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Description
Use the interface vlan-interface command to create a VLAN interface and enter its view or enter the view
of an existing VLAN interface.
Use the undo interface vlan-interface command to remove the specified VLAN interface.
You must create the VLAN before you create the VLAN interface.
To configure an IP address for a VLAN interface to perform IP routing, use the ip address command in
VLAN interface view.
Related commands: display interface vlan-interface.
Examples
# Create VLAN-interface 2.
<Sysname> system-view
[Sysname] vlan 2
[Sysname-vlan2] quit
[Sysname] interface vlan-interface 2
[Sysname-Vlan-interface2]
ip address
Syntax
ip address ip-address { mask | mask-length } [ sub ]
undo ip address [ ip-address { mask | mask-length } [ sub ] ]
View
VLAN interface view
Default level
2: System level
Parameters
ip-address: Specifies an IP address, in dotted decimal notation.
mask: Specifies a subnet mask in dotted decimal notation.
mask-length: Sets the number of consecutive ones in the subnet mask, ranging from 0 to 32.
sub: Indicates the address is a secondary IP address.
Description
Use the ip address command to assign an IP address and subnet mask to a VLAN interface.
Use the undo ip address command to remove the IP address and subnet mask for a VLAN interface.
By default, no IP address is assigned to any VLAN interface.
In general conditions, you need to assign only one IP address for a VLAN interface. For a VLAN to
connect to multiple subnets on an Ethernet switch, you can assign up to five IP addresses to a VLAN
interface. Among these IP addresses, one is primary and the others are secondary.
When configuring IP addresses for a VLAN interface, follow these rules:
• The primary IP address you assign to a VLAN interface overwrites the previous one, if any.
• Before removing the primary IP address, remove all secondary IP addresses.
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