AireOS WLC Basic FlexConnect Setup

This guide explains the basic setup of an AireOS WLAN controller system in FlexConnect mode. A Cisco 2504 WLAN controller has been used for this guide.

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Introduction
Switch Uplink
Wizard Configuration Tool
WLC Interfaces
Country Codes
WLANs
AP Groups
FlexConnect Groups
WLC AP Configuration
Best Practice Settings

Introduction

Cisco AireOS WLC (Wireless LAN Controller) is a wireless network controller that is designed to manage wireless lightweight access points (LAP) in large-scale enterprise wireless networks. It is a software-based controller that can be deployed on a physical appliance or on a virtual machine, and it provides centralized management and control of all the wireless access points in a network. This guide covers the FlexConnect mode (local switching) , which is not active by default. In contrast to autonomous WLAN access points lightweight access points are designed to be controled via a WLAN controller. Some of the key features and capabilities of Cisco AireOS WLC include:

Description
Network management: The AireOS WLC provides a single point of control for managing all the APs in a network. This includes configuration management, firmware updates, and monitoring of the APs.
Mobility: The AireOS WLC enables seamless mobility for wireless clients as they move from one AP to another within the network. This is achieved through features such as fast roaming and intelligent load balancing.
Security: The AireOS WLC provides a range of security features to ensure that the wireless network is protected from unauthorized access and attacks. These include encryption, access control, and intrusion detection and prevention.
Scalability: The AireOS WLC is designed to be highly scalable, allowing it to support thousands of APs and tens of thousands of clients.
Analytics: The AireOS WLC provides detailed analytics and reporting on network performance, client behavior, and usage patterns. This data can be used to optimize network performance and troubleshoot issues.

The topology above represents a datacenter site and a small office site where the WLAN access points are located. The WLAN controller is connected inside the datacenter via LAG (port channel) to NEXUS switches (vPC). The Firewall is connected between both sites and routes are exchanged via OSPF. The main focus is on the WLC and the office site where the APs are connected.

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