You must reboot the WLC in order for the new software to take effect, so there is a period of network downtime. Be sure to schedule a maintenance window for the upgrade.
Q. Can a Cisco IOS Software−based access point (AP) that has been converted to lightweight mode register with Cisco 4100 Series WLCs?
A. No, Cisco IOS Software−based APs that are converted to lightweight mode cannot register with the Cisco 40xx, 41xx, or 3500 WLCs. These lightweight APs (LAPs) can register only with the Cisco 4400 and the 2000 series WLCs. For information on the restrictions of APs that are converted to lightweight mode, refer to the Restrictions section of Upgrading Autonomous Cisco Aironet Access Points to Lightweight Mode.
Q. What is the maximum number of APs supported on the 4402 and 4404 Wireless LAN Controllers (WLCs)?
A. The limitation on the number of supported access points is based on the hardware that you have. The 4402 WLC with two gigabit Ethernet ports comes in configurations that support 12, 25, and 50 access points. The 4404 WLC with four gigabit Ethernet ports supports 100 access points.
Q. How do I configure a local database on the Wireless LAN Controller (WLC)? What are the special characters that can be used for the local net user username and passwords?.
A. The local user database stores the credentials (username and password) of all the local network users. These credentials are then used to authenticate the users. You can configure local network users through either the GUI or the CLI. You can enter up to 24 alphanumeric characters. All the special characters with the exception of the quote character can be used for the username and passwords.
From the CLI, use these commands to create a local net use:.
♦config netuser add <username> <password> wlan <wlan_id> userType permanent description <description> Adds a permanent user to the local user database on the controller.
♦config netuser add <username> <password> {wlan guestlan} {wlan_id
guest_lan_id} userType guest lifetime seconds description <description>Adds a
guest user on a WLAN or wired guest LAN to the local user database on the controller.
From the GUI, you can configure local net users from the Security > AAA > Local Net Users page.
Q. Is it possible to automatically delete the local net user on the controller?
A. You can give the local net user configured on the controller a lifetime which automatically deletes the username after the allotted lifetime.
Q. How many WLCs can I have in the same mobility group?
A. You can place up to 24 regular WLCs (Cisco 2000, 4100, and 4400 series) in a single