Cisco AIR-WLC2106-K9 Full English Product Description

1. Short Official Part Label

AIR-WLC2106-K9: Cisco 2106 Wireless LAN Controller, 1U Rackmount Unified WLC, Supports Up to 6 Cisco Lightweight Aironet Access Points, 8×10/100 Fast Ethernet Ports (2 Ports with 802.3af PoE), Branch & SMB Cost-Optimized WLAN Controller, Part of Cisco Unified Wireless Network Architecture, End-of-Sale Legacy Hardware

2. Full Product Overview

The Cisco AIR-WLC2106-K9 is an entry-level 1U rack-mount wireless LAN controller within the legacy Cisco 2100 WLC series, built for small-to-medium businesses (SMBs), remote enterprise branch offices, retail stores, and compact site deployments requiring centralized lightweight AP management at low capital cost. As a core component of Cisco’s Unified Wireless Network (CUWN), it operates exclusively with Cisco Lightweight APs via CAPWAP/LWAPP tunnels to deliver centralized RF management, mobility, security policy enforcement, and guest wireless services across all connected access points.

Factory licensed to manage a maximum of 6 lightweight APs without additional upgrade licenses, this compact controller integrates an embedded 8-port Fast Ethernet switch with native PoE on two ports to directly power connected APs, eliminating the need for external PoE injectors for small deployments. It delivers full enterprise-class wireless security, radio resource management (RRM), seamless Layer 2/3 client roaming, voice-over-Wi-Fi (VoWLAN) support, and PCI-compliant traffic handling for retail payment environments.

This model has reached Cisco End-of-Sale (EoS) and End-of-Support (EoL); all available stock consists of surplus, used, or certified refurbished units. It supports legacy wireless firmware branches and is compatible only with older Aironet lightweight AP generations (1100, 1200, 1300, 1400, 1500 series). Centralized fleet management is achievable via legacy Cisco Wireless Control System (WCS), while standalone administration is available through local web GUI, CLI over SSH/Telnet, or serial console.

3. Complete Hardware Physical & Interface Specifications

Form Factor & Mechanical

Rack Form Factor: 1U 19-inch rack-mount chassis
Dimensions: 4.45 cm (H) × 20.04 cm (W) × 17.45 cm (D) / 1.75 × 7.89 × 6.87 inches
Unit Weight: 4.0 lbs (1.81 kg) with integrated AC power supply
Cooling: Built-in internal fan for passive/active thermal regulation

Port Layout (Rear Panel)

8× 10/100 Mbps RJ45 Fast Ethernet switch ports (Ports 1–6 standard data; Ports 7 & 8 support IEEE 802.3af PoE output for powering lightweight APs)
DB-9 RS-232 serial console port (RJ45 rollover cable included for out-of-band initial configuration)
Lock slot for physical security cable
External AC power input jack (integrated power supply, no separate brick required)
Reserved USB and SSC security card slots (unused on 2106 platform)

LED Status Indicators (Front Panel)

Global status LEDs: Power, System Status, Critical Alarm, AP Joined Count

Per-port LEDs: Link/Activity for all 8 Fast Ethernet interfaces

Power & Environmental Parameters

Input Power: 100–240 VAC, 50/60 Hz universal AC
PoE Power Budget: Limited budget to power up to two lightweight APs via Ports 7/8
Heat Dissipation: 72 BTU/hour
Operating Temperature: 0°C to 40°C (32°F to 104°F)
Storage Temperature: -25°C to 70°C (-13°F to 158°F)
Humidity: 10%–95% non-condensing (operating & storage)
Regulatory Certifications: UL 60950-1, CE, FCC Class B, ICES-003, VCCI, NEBS basic compliance

4. Official Capacity & Performance Benchmarks

Maximum Supported Lightweight APs: 6 (hard license limit, non-upgradable)
Max Concurrent Wireless Client Stations: Up to 500 total across all managed APs
Switching Throughput: 100 Mbps wire-rate Fast Ethernet switching capacity
Roaming Support: Seamless Layer 2 intra-controller roaming; Layer 3 inter-VLAN mobility
Supported WLAN SSIDs: Up to 16 unique broadcast/closed SSIDs per controller
RRM Radio Management: Automatic channel & transmit power adjustment for 802.11a/b/g radios

5. Core Wireless & Security Feature Suite

1. Centralized Lightweight AP Management

CAPWAP/LWAPP tunnel termination for all connected APs; single-pane firmware upgrade, RF configuration, and policy deployment across all 6 managed access points; zero-touch AP auto-discovery via DHCP option 43.

2. Enterprise Wireless Security Stack

Authentication: IEEE 802.1X, EAP-TLS, PEAP, EAP-FAST, web-based guest authentication, local user database, external RADIUS AAA integration
Encryption Standards: WEP, WPA, WPA2-PSK/Enterprise (802.11i RSN), TKIP, AES-CCMP
Threat Mitigation: Rogue AP detection & containment, client isolation, MAC filtering, static/dynamic VLAN assignment per SSID, 802.1Q VLAN tagging
Compliance: PCI DSS certified architecture for retail wireless POS deployments

3. Mobility & Voice Over Wi-Fi

Fast secure roaming (802.11r pre-authentication), intra-controller seamless roaming, QoS Wi-Fi Multimedia (WMM) prioritization for VoIP handsets, bandwidth policing per wireless client.

4. Radio Resource Management (RRM)

Automated interference detection, dynamic transmit power control, auto-channel assignment, RF coverage hole detection, and spectrum monitoring for 2.4GHz and 5GHz bands.

5. Multi-Management Access Methods

Local Web GUI (HTTP/HTTPS) for standalone configuration and monitoring
CLI via SSH v2, Telnet, or serial console
SNMP v1/v2c/v3 for network monitoring & NMS integration
Syslog logging for audit, security and event tracking
Centralized management via legacy Cisco Wireless Control System (WCS)

6. Guest Access & Network Segmentation

Isolated guest SSID routing, web splash page authentication, guest user time-limited access, separate guest VLANs to isolate visitor traffic from internal corporate assets.

6. Primary Deployment Scenarios

Small enterprise remote branch offices with up to 6 wireless access points
Independent retail locations, small clinics, and education satellite classrooms
SMB office wireless consolidation with integrated PoE to eliminate external power injectors
Temporary event wireless deployments, lab training environments, and legacy CUWN upgrade staging
Low-density warehouse or hospitality sites requiring centralized wireless security and roaming

7. Short Sales Listing Tagline

Cisco AIR-WLC2106-K9 Legacy 1U Rackmount Wireless LAN Controller, Licensed for Max 6 Lightweight Aironet APs, 8×10/100 Fast Ethernet Ports with 2 Port 802.3af PoE, Unified CUWN Architecture, WPA2/802.1X Security, RRM RF Management, Seamless Client Roaming, Web GUI/SSH/SNMP Managed, EoS End-of-Sale Branch & SMB Compact WLAN Controller


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