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173 | Network Configuration Parameters Dell Networking W-Series ArubaOS 6.4.x| User Guide
Use the following command to display user VLAN derivation related debug information:
(host) #show aaa debug vlan user [ip | ipv6 | mac]
How a VLAN Obtains an IP Address
A VLAN on the controller obtains its IP address in one of the following ways:
l You can manually configure it. This is the default method and is described in Assigning a Static Address to a
VLAN on page 173. At least one VLAN on the controller must be assigned a static IP address.
l Dynamically assigned from a Dynamic Host Configuration Protocol (DHCP) or Point-to-Point Protocol over
Ethernet (PPPoE) server.
Assigning a Static Address to a VLAN
You can manually assign a static IP address to a VLAN on the controller. At least one VLAN on the controller a
static IP address.
In the WebUI
1. Navigate to the Configuration > Network > IP > IP Interfaces page on the WebUI. Click Edit for the
VLAN you just added.
2. Select the Use the following IP address option. Enter the IP address and network mask of the VLAN
interface. If required, you can also configure the address of the DHCP server for the VLAN by clicking Add.
3. Click Apply.
In the CLI
(host)(config) #interface vlan <id>
ip address <address> <netmask>
Configuring a VLAN to Receive a Dynamic Address
In a branch office, you can connect a controller to an uplink switch or server that dynamically assigns IP
addresses to connected devices. For example, you can connect the controller to a DSL or cable modem, or a
broadband remote access server (BRAS). The following figure shows a branch office where a controller
connects to a cable modem. VLAN 1 has a static IP address, while VLAN 2 has a dynamic IP address assigned via
DHCP or PPPoE from the uplink device.
Figure 15 IP Address Assignment to VLAN via DHCP or PPPoE
Configuring Multiple Wired Uplink Interfaces (Active-Standby)
You can assign up to four VLAN interfaces to operate in active-standby topology. An active-standby topology
provides redundancy so that when an active interface fails, the user traffic can failover to the standby
interface.
To allow the controller to obtain a dynamic IP address for a VLAN, enable the DHCP or PPPoE client on the
controller for the VLAN.