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To configure an IP address for a VLAN interface that will 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 1s in the subnet mask, ranging from 0 to 32.
sub
: Indicates the address is a secondary IP address.
Description
Use
ip address
to assign an IP address and subnet mask to a VLAN interface.
Use
undo ip address
to remove the IP address and subnet mask for a VLAN interface.
By default, no IP address is assigned to any VLAN interface.
To connect a VLAN to multiple subnets, assign one primary IP address and one secondary IP address to
a VLAN interface.
When you configure 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.
•
Remove all secondary IP addresses before you remove the primary IP address.
•
To remove all IP addresses, use the
undo ip address
command without any parameter.
•
To remove the primary IP address, use the
undo ip address
ip-address
{
mask
|
mask-length
}
command.
•
To remove a secondary IP address, use the
undo ip address
ip-address
{
mask
|
mask-length
}
sub
command.
Related commands:
display ip interface
(
Layer 3 Command Reference
).