在ubuntu上架设软ap

家里没有路由器,于是想用ubuntu搞个热点,目标是通过eth0拨号上网使用wlan0共享,

网上搜到hostapd这个软件 ,记录下我的配置过程:

先安装软件:

  sudo apt-get install hostapd  udhcpd

创建/etc/hostapd/hostapd.conf 

ssid=TPLINK_2222
hw_mode=g
channel=2
interface=wlan0
driver=nl80211
macaddr_acl=0
wpa=2
wpa_passphrase=123456789
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP

修改/etc/default/hostapd

<span style="font-size:18px;">DAEMON_CONF="/etc/hostapd/hostapd.conf"</span>

修改/etc/udhcpd.conf

start       192.168.0.20    #default: 192.168.0.20
end     192.168.0.254   #default: 192.168.0.254
interface wlan0
max_leases  20      #default: 254
lease_file  /etc/udhcpd.leases
remaining   yes
opt dns 202.96.134.133 192.168.0.1
option  subnet  255.255.255.0
opt router  192.168.0.1
option  lease   864000      # 10 days of seconds

创建/etc/udhcpd.leases

修改/etc/default/udhcpd

DHCPD_ENABLED="yes"
DHCPD_OPTS="-S"

创建脚本ap.sh

#!/bin/sh

sudo ifconfig wlan0 192.168.0.1
sudo service udhcpd start
sudo bash -c "echo 1 > /proc/sys/net/ipv4/ip_forward"
sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
sudo service hostapd start

执行ap.sh,就可以看到热点了.

注意对于ubuntu14.04，安装2.1版本的hostapd后，需要执行：

sudo nmcli nm wifi off
sudo rfkill unblock wlan