Firmware Recovery - Cisco WAP551 Administration Manual

Administration

Firmware Recovery

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Firmware Recovery
NOTE
Cisco Small Business WAP551 and WAP561 Wireless-N Access Point
Select HTTP for Transfer Method.
If you know the name and path to the new file, enter it in the Source File Name field.
Otherwise, click the Browse button and locate the firmware image file on your network.
The firmware upgrade file supplied must be a tar file. Do not attempt to use bin files or files of
other formats for the upgrade; these types of files do not work.
Click Upgrade to apply the new firmware image.
Uploading the new software may take several minutes. Do not refresh the page or navigate to
another page while uploading the new software, or the software upload is aborted. When the
process is complete, the access point restarts and resumes normal operation.
To verify that the firmware upgrade completed successfully, log into the user interface, display
the Upgrade Firmware page, and view the active firmware version.
The WAP device has a firmware recovery feature that enables the restoration of a valid image
on the WAP device after a failed download. If the power goes down during an image
download, the WAP device might not be able to boot. In this event, although the image is not
usable, the boot loader file that loads the firmware image from flash memory to RAM should
continue to be functional. An HTTP server is embedded in the boot loader file, enabling the
administrator to connect to the WAP device over the LAN port and use a web browser to
download and install a new firmware image.
The WAP device enters the HTTP firmware recovery mode when it is booted and the boot
loader cannot find a valid image in flash memory. In this mode, the boot loader sets the
internal network port to the following static IP address:
• IP Address: 192.168.1.254
• Network Mask: 255.255.255.0
• Default Gateway: 192.168.1.1
An HTTP server starts and listens for client connections on port 80.
The Firmware Recovery page is shown in the web-based configuration utility only when an
image needs to be restored.
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