Network Router User Manual

5/26/05 Transferring Files To and From a Cisco Wireless LAN Controller
OL-7426-03
Transferring Files To and From a Cisco Wireless LAN ControllerTransferring Files To and From a Cisco Wireless LAN Controller
Cisco Wireless LAN Controllers have built-in utilities for uploading and downloading Operating System
software, certificate and configuration files. Refer to the following for additional information.
• Use the CLI transfer commands to perform these actions:
>transfer download datatype
>transfer download filename
>transfer download mode
>transfer download path
>transfer download serverip
>transfer download start
>transfer upload datatype
>transfer upload filename
>transfer upload mode
>transfer upload path
>transfer upload serverip
>transfer upload start
Continue with Using the Cisco WLAN Solution CLI
.
Updating the Operating System SoftwareUpdating the Operating System Software
When you plan to update the Cisco Wireless LAN Controller (and Cisco 1000 Series lightweight access
point) Operating System software, complete the following.
• Make sure you have a TFTP server available for the Operating System software download.
- If you are downloading through the Service port, the TFTP server MUST be on the same
subnet as the Service port, because the Service port is not routable.
- If you are downloading through the DS (Distribution System) network port, the TFTP
server can be on the same or a different subnet, because the DS port is routable.
CAUTION: Each certificate has a variable-length embedded RSA Key. The RSA key
can be from 512 bits, which is relatively insecure, through thousands of bits, which is
very secure. When you are obtaining a new certificate from a Certificate Authority
(such as the Microsoft CA), MAKE SURE the RSA key embedded in the certificate is
AT LEAST 768 Bits.
Note: You can also start the Operating System software update using the Web User
Interface or Management over Wireless. However, in these cases, you will lose your
connection to the Cisco Wireless LAN Controller some time during the update
process. For this reason, Cisco strongly recommends that you use a direct CLI
console port connection to update the Operating System software.
Note: On the Cisco 2000 Series Wireless LAN Controller, the TFTP server MUST be on
the same subnet because this Cisco Wireless LAN Controller does not have a service
port.
Note: The TFTP server cannot run on the same computer as the Cisco Wireless
Control System, because the Cisco WCS and the TFTP server use the same commu-
nication port.