This document describes how to use FTP to upgrade firmware that runs on
the Cisco 340 Series Ethernet Bridge and 340 Series Workgroup Bridge.
In order to perform the upgrade, you need an FTP server on which to
place the image that you load.
The information in this document is based on the Cisco 340 Series
Ethernet Bridge and 340 Series Workgroup Bridge.
The information in this document was created from the devices in a
specific lab environment. All of the devices used in this document started with
a cleared (default) configuration. If your network is live, make sure that you
understand the potential impact of any command.
Technical Tips Conventions for more information on document
There are three methods used to upgrade the Cisco 340 Bridge and 340
Workgroup Bridge firmware. These methods are:
Cyclic redundancy check (CRC) Xmodem
The first two methods have these disadvantages:
Because the speed over an Xmodem is slow compared to the 10 Mbps
network connection over a LAN port or 11 Mbps connection over a radio port of a
bridge, the time that the Xmodem takes to complete the image upgrade is
These methods require access to the console port of the bridge.
Therefore, the user cannot perform a remote
For these reasons, the method typically recommended to upgrade the
firmware of a Cisco 340 Series Bridge is by FTP.
Complete these steps in order to perform the upgrade by FTP:
Download the desired firmware image from the
Wireless Software Center.
Run the executable file (for example,
BR340v8652.exe) to uncompress the image contained in the
Copy the uncompressed image (BR340V865_2.450 in
this example) into the directory of your FTP server. You retrieve this image
later in this procedure. For example, use your user directory, typically
/home/username in a UNIX directory.
Make a Telnet connection to the IP address of the Cisco Aironet 340
Bridge that you wish to upgrade. Make sure that you have IP connectivity to the
FTP server on which you placed the image. Complete these steps in order to
check the connectivity:
Go to the main menu.
Choose 5 - Diagnostics.
Choose 1 - Network.
Choose 3 - Ping.
Enter the IP address of your FTP
Press the = key to return to the main
Choose 5 - Diagnostics.
Choose 7 - Load.
Choose 3 - Ftp.
The Telnet window appears, as shown here:
Configure these parameters:
IP address of the FTP server
Your username on the FTP server
Your password on the FTP server (if needed)
New image filename as stored on the FTP
In the example in Figure 2, the
IP address of the FTP server is
FTP username is testuser.
New image filename is BR340v865_2.450. This is
the expanded executable that you downloaded.
Note: Make sure that you use the correct uppercase and lowercase
letters in the filename of the image, because some FTP servers are case
After you configure the FTP settings, this window
In order to initiate the FTP transfer, choose the 1 -
Get option from the menu. The image is automatically upgraded (as
shown in Figure 3). The unit reloads with the new
image and keeps its previous configuration.
Another similar upgrade method for the Cisco 340 Series Bridges is to
distribute the software from a unit that already runs the software version and
has it already stored in its flash memory.
In order to achieve this, complete the Step-by-Step Instructions, with these
The IP address must be the IP address of the remote bridge that you
wish to update.
You must use any username (do not leave the
You must use any filename (do not leave the
Instead of the 1 - Get option from the menu, use the
2 - Put option.
The remote Cisco Aironet 340 Series Bridge flashes the new code and
begins to run it immediately.
There is currently no verification procedure available for this
There is currently no specific troubleshooting information available
for this configuration.