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20-23
Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-30644-01
Chapter 20 Managing Firmware and Configurations
Working with Software Images
You download an access point image file from a server to upgrade the access point software. You can
overwrite the current image with the new one or keep the current image after a download.
You upload an access point image file to a server for backup purposes. You can use this uploaded image
for future downloads to the access point or another access point of the same type.
This section includes this information:
• Preparing to Download or Upload an Image File by Using FTP, page 20-23
• Downloading an Image File by Using FTP, page 20-24
• Uploading an Image File by Using FTP, page 20-26
Preparing to Download or Upload an Image File by Using FTP
You can copy images files to or from an FTP server.
The FTP protocol requires a client to send a remote username and password on each FTP request to a
server. When you copy an image file from the access point to a server by using FTP, the Cisco IOS
software sends the first valid username in this list:
• The username specified in the archive download-sw or archive upload-sw privileged EXEC
command if a username is specified.
• The username set by the ip ftp username username global configuration command if the command
is configured.
• Anonymous.
The access point sends the first valid password in this list:
• The password specified in the archive download-sw or archive upload-sw privileged EXEC
command if a password is specified.
• The password set by the ip ftp password password global configuration command if the command
is configured.
• The access point forms a password named username@apname.domain. The variable username is the
username associated with the current session, apname is the configured host name, and domain is
the domain of the access point.
The username and password must be associated with an account on the FTP server. If you are writing to
the server, the FTP server must be properly configured to accept the FTP write request from you.
Use the ip ftp username and ip ftp password commands to specify a username and password for all
copies. Include the username in the archive download-sw or archive upload-sw privileged EXEC
command if you want to specify a username only for that operation.
If the server has a directory structure, the image file is written to or copied from the directory associated
with the username on the server. For example, if the image file resides in the home directory of a user
on the server, specify that user's name as the remote username.
Before you begin downloading or uploading an image file by using FTP, perform these tasks:
• Ensure that the access point has a route to the FTP server. The access point and the FTP server must
be in the same subnetwork if you do not have a router to route traffic between subnets. Verify
connectivity to the FTP server by using the ping command.
• If you are accessing the access point through a Telnet session and you do not have a valid username,
make sure that the current FTP username is the one that you want to use for the FTP download. You
can enter the show users privileged EXEC command to view the valid username. If you do not want
to use this username, create a new FTP username by using the ip ftp username username global