Cisco AIR-AP1100MNTGKIT= - Network Device Mounting Hardware Installation Manual Download

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Cisco Aironet 1100 Series Access Point Hardware Installation Guide

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Appendix E Priming Lightweight Access Points Prior to Deployment

Before deploying your lightweight access points to their final locations, follow these steps to prime your
access points:

Step 1

In a Layer 3 environment, ensure a DHCP server (typically on your switch) is enabled on the same subnet
as your lightweight access points. The access points receives its IP address and controller information
using DHCP Option 43.

The lightweight access point must be able to find the IP address of the controller. This can be
accomplished using DHCP, DNS, OTAP, or IP subnet broadcast. This guide describes the DHCP method
to convey the controller IP address. For other methods, refer to the product documentation. See also the

“Using DHCP Option 43” section on page 6-2

for more information.

Note

For a Layer 3 access point on a different subnet than the controller, ensure the route to the
controller has destination UDP ports 12222 and 12223 open for LWAPP communications.
Ensure that the routes to the primary, secondary, and tertiary controllers allow IP packet
fragments.

Step 2

Ensure that your controller is connected to a switch trunk port.

Step 3

Configure the controller in LWAPP Layer 3 mode and ensure its DS Port is connected to the switch. Use
the CLI, web-browser interface, or Cisco WCS procedures as described in the appropriate controller
guide.

In multi-controller environments, You can set one controller’s DS port to

Master

(you can use the

config network master-base disable

CLI command or you can use the controller GUI

)

so that new

lightweight access points always associate with it. You can use the

show network config

CLI

command to determine if the controller DS port is the master.

All lightweight access points associate to the master controller. From one location, you can
configure lightweight access point settings such as primary, secondary, and tertiary controllers. This
allows you to redistribute your lightweight access points to other controllers on the network.

You can also use a Cisco WCS server to control, configure, and redistribute all your lightweight
access points from a single location.

Step 4

Apply power to the access points:

Connect your lightweight access points to untagged access ports on your POE capable switch. You
can optionally use power modules or power injectors to power your access points.

After you power up the lightweight access point, it begins a power-up sequence that you can check
by observing the access point LEDs. All LEDs blink sequentially back and forth, indicating that the
access point is trying to find a controller.

Note

If the access point remains in this mode for more than 5 minutes, the access point is unable to
find the master controller. Check the connection between the access point and the controller and
ensure they are on the same subnet.

If the lightweight access point shuts down (all LEDs off), check to ensure that sufficient power is
available.

When the lightweight access point associates with the controller, if the access point code version
differs from the controller code version, the access point downloads the operating system code from
the controller. All the access point LEDs blink simultaneously during the download.