新买的无线usb网卡，
lsusb
Bus 003 Device 005: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n

iw list
Supported interface modes:

* IBSS
* managed
* AP
* AP/VLAN
* monitor
* mesh point
* P2P-client
* P2P-GO

下面我准备将它做成无线热点。
本地网络环境：pppoe拨号上网，eth0 板载网卡，wlan0 usb无线网卡。
思路：将eth0接收的internet信号，通过wlan0转发，其他上网设备接收这个信号，实现上网。
cat /etc/network/interfaces

auto dsl-provider
iface dsl-provider inet ppp
pre-up /bin/ip link set eth0 up
provider dsl-provider

auto eth0
iface eth0 inet static
address 192.168.22.1
netmask 255.255.255.0
dns-server 114.114.114.114
auto wlan0
iface wlan0 inet static
address 192.168.22.2
netmask 255.255.255.0

cat /etc/hostapd/hostapd.conf

hw_mode=g
channel=11
driver=nl80211

ssid=test
interface=wlan0

# encryption
wpa=2
wpa_passphrase=password
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP CCMP
rsn_pairwise=CCMP
ctrl_interface=/var/run/hostapd

# Only root can configure hostapd
ctrl_interface_group=0

cat /etc/dnsmasq.conf

interface=wlan0
listen-address=192.168.22.1
dhcp-range=192.168.22.2,192.168.22.150,12h
dhcp-option=3,192.168.22.1
dhcp-option=6,114.114.114.114

上面的配置文件已经配置好后，执行下面的命令。

nmcli radio wifi off
rfkill unblock wlan
ifconfig wlan0 192.168.22.2 up
service dnsmasq restart
service hostapd restart
hostapd /etc/hostapd/hostapd.conf

创造的这个热点： ssid `test` and password `password`.

请看我的pc端信息：

hostapd /etc/hostapd/hostapd.conf
Configuration file: /etc/hostapd/hostapd.conf
Using interface wlan0 with hwaddr 00:1a:8c:30:08:b1 and ssid "test"
wlan0: interface state UNINITIALIZED->ENABLED
wlan0: AP-ENABLED
wlan0: STA f0:79:59:cb:d8:eb IEEE 802.11: authenticated
wlan0: STA f0:79:59:cb:d8:eb IEEE 802.11: associated (aid 1)
wlan0: AP-STA-CONNECTED f0:79:59:cb:d8:eb
wlan0: STA f0:79:59:cb:d8:eb RADIUS: starting accounting session 5789EE90-00000000
wlan0: STA f0:79:59:cb:d8:eb WPA: pairwise key handshake completed (RSN)
wlan0: AP-STA-DISCONNECTED f0:79:59:cb:d8:eb
wlan0: STA f0:79:59:cb:d8:eb IEEE 802.11: authenticated
wlan0: STA f0:79:59:cb:d8:eb IEEE 802.11: associated (aid 1)
wlan0: AP-STA-CONNECTED f0:79:59:cb:d8:eb
wlan0: STA f0:79:59:cb:d8:eb RADIUS: starting accounting session 5789EE90-00000001
wlan0: STA f0:79:59:cb:d8:eb WPA: pairwise key handshake completed (RSN)

用android手机联网，android手机，一直处于authenticating状态，就是无法联网，请问，原因在哪里？如何解决？

看看 能否幫上忙
https://help.ubuntu.com/community/WifiD ... ccessPoint
https://help.ubuntu.com/community/WifiD ... rnal_links
及其連結文章

尝试使用 https://github.com/oblique/create_ap
无路由器使用 NAT 模式