apt-get install bridge-utils hostapd

Editer :

vim /etc/network/interfaces

Ajouter :

allow-hotplug wlan0
iface wlan0 inet manual

# Bridge setup

# for dhcp address
iface br0 inet dhcp
bridge_ports eth0 wlan0

Editer :

vim /etc/default/hostapd

Modifier la variable :

DAEMON_OPTS="/etc/hostapd/hostapd.conf"

Créer et Editer:

vim /etc/hostapd/hostapd.conf

Insérer le contenu suivant en ajustant les paramètres selon les besoins :

interface=wlan0
driver=nl80211

# YOUR BRIDGE NAME
bridge=br0

# YOUR COUNTRY HERE
country_code=FR
ieee80211d=1

# MODIFY YOUR SSID HERE
ssid=My-own-AP

# CHANGE MODE HERE IF NEEDED
hw_mode=g

# CHANGE CHANNEL EVENTUALLY
channel=6

wme_enabled=0
macaddr_acl=0
auth_algs=1

# WE USE WPA2
wpa=2

# MODIFY YOUR PASSPHRASE HERE
wpa_passphrase=monmdp

wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP

Test:

hostapd /etc/hostapd/hostapd.conf