Руководство По Установке для Cisco Cisco 4402 Wireless LAN Controller

The lightweight access point protocol (LWAPP) transport mode (Layer 2 or Layer 3).

A virtual gateway IP address (a fictitious, unassigned IP address, such as 1.1.1.1, used by all Cisco 
wireless LAN controller Layer 3 security and mobility managers).

A Cisco wireless LAN controller mobility group name, if required.

An 802.11 network name (SSID) for WLAN 1. This is the default SSID that the access points use 
when they join with the controller.

Whether or not to allow static IP addresses from clients.

Yes is more convenient, but has lower security (session can be hijacked). 

No is less convenient, but has higher security and works well for Windows XP devices.

RADIUS server IP address, communications port, and secret (if you are configuring a RADIUS 
server).

The country code for this installation. Refer to the Cisco Wireless LAN Controller Configuration 
Guide for country code information. This guide is available at cisco.com.

Status of the 802.11a, 802.11b, and 802.11g networks (enabled or disabled).

Status of radio resource management (RRM) (enabled or disabled).

You can install the controller almost anywhere, but it is more secure and reliable if you install it in a 
secure equipment room or wiring closet. For maximum reliability, mount the controller using the 
following guidelines:

To prevent the system from overheating, do not operate it in an area that exceeds the 
maximum recommended ambient temperature of: 
104° F (40° C) Statement 1047

To prevent airflow restriction, allow clearance around the ventilation openings to be at 
least: 
4-in (10.16 cm) Statement 1076

Take care when connecting units to the supply circuit so that wiring is not overloaded. 
Statement 1018

Make sure you can reach the controller and all cables attached to it.