Users Guide

Table Of Contents
In the CLI
To configure the default gateway:
ip default-gateway <ipaddr>|{import cell|dhcp|pppoe}|{ipsec <name>} <cost>
Configuring the Loopback IP Address for the Controller
You must configure a loopback address if you are not using a VLAN ID address to connect the controller to the
network (see
Deployment Scenario #3: APs on Multiple Different Subnets from Controllers on page 32).
After you configure or modify a loopback address, you must reboot the controller.
If configured, the loopback address is used as the controller’s IP address. If you do not configure a loopback
address for the controller, the IP address assigned to the first configured VLAN interface IP address. Generally,
VLAN 1 is configured first and is used as the controller’s IP address.
ArubaOS allows the loopback address to be part of the IP address space assigned to a VLAN interface. In the
example topology, the VLAN 5 interface on the controller was previously configured with the IP address
10.3.22.20/24. The loopback IP address in this example is 10.3.22.220.
You configure the loopback address as a host address with a 32-bit netmask. The loopback address should be
routable from all external networks.
Spanning tree protocol (STP) is enabled by default on the controller. STP ensures a single active path between
any two network nodes, thus avoiding bridge loops. Disable STP on the controller if you are not employing STP
in your network.
In the WebUI
To configure a loopback IP address:
1. Navigate to Configuration > Network > Controller > System Settings.
2. Enter the IP address under Loopback Interface.
3. On this window, you can also turn off spanning tree. Click No for Spanning Tree Enabled.
4. Click Apply at the bottom of the window (you might need to scroll down the window).
5. At the top of the window, click Save Configuration.
You must reboot the controller for the new IP address to take effect.
6. Navigate to the Maintenance > Controller > Reboot Controller window.
7. Click Continue.
In the CLI
To configure a loopback IP address:
(host)(config) #interface loopback ip address <A.B.C.D>
(host)(config) #no spanning-tree
(host)(config) #write memory
(host)(config) #reload
The controller returns the following messages:
Do you really want to reset the system(y/n):
Dell Networking W-Series ArubaOS 6.5.x | User Guide The Basic User-Centric Networks |
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