Configurare Access Point FAT mode

Situatie

In FAT AP mode (also called Autonomous mode or Standalone mode), the AP operates independently without needing a wireless controller (no WLC/AC required). All configuration is stored locally on the AP itself.

FAT vs FIT Mode

	FAT Mode	FIT Mode
Controller needed	❌ No	✅ Yes
Config stored	On the AP	On the controller
Management	Per-AP (local)	Centralized
Best for	Small/home networks	Enterprise deployments

Solutie

Step 1: Power the AP via PoE

Connect the AP to a PoE switch or PoE injector as normal. Ensure PoE standard matches AP requirements (802.3af/at/bt).

Step 2: Set the AP to FAT Mode

Some APs ship in FIT mode by default and need to be switched:

Cisco/H3C/Huawei example (via console or CLI):

ap-mode fat

system-view
wlan ap <ap-name>
fat-ap

Via Web GUI: Look for an option like:

Operating Mode → Autonomous / FAT / Standalone
Some APs require a firmware change (FAT firmware vs FIT firmware)

⚠️ Switching modes may require a firmware flash and reboot — the AP may reset to factory defaults.

Step 3: Access the FAT AP Interface

After reboot in FAT mode:

Connect your PC to the AP via Ethernet or default SSID
Open a browser and go to the default IP (commonly 192.168.1.1 or 192.168.0.1)
Log in with default credentials (check device label)

Alternatively, use CLI via console cable:

enable
configure terminal

Step 4: Basic FAT AP Configuration

IP Address

interface vlan 1
ip address 192.168.1.100 255.255.255.0
ip default-gateway 192.168.1.1

SSID & Wireless Settings

wlan ssid MyNetwork
  security-mode wpa2-psk
  passphrase MyPassword123
  vlan 1
  radio all

Radio Settings

interface wlan-radio 0    (2.4GHz)
  channel auto
  power auto
  ssid MyNetwork

interface wlan-radio 1    (5GHz)
  channel auto
  power auto
  ssid MyNetwork

Management Security

username admin password NewSecurePassword

Step 5: Save Configuration

write memory

copy running-config startup-config

Step 6: Verify

show wlan all
show interface wlan-radio 0
show station

Check that:

SSID is broadcasting
Clients can associate and get an IP
Internet access works through the uplink

Key Points for FAT Mode

The AP handles authentication, encryption, and roaming locally
No controller heartbeat needed — AP works independently even if uplink is down
Each AP must be configured individually (no central push)
Ideal for small offices, warehouses, or single-AP deployments.

Tip solutie

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