假设需要静态IP配置到个人电脑，就要在路由器上进行配置IP和MAC地址映射关系。如上篇截图。路由器端配置完，继续在本地主机配置。

我的操作系统是Ubuntu16.04，默认使用NetworkManager管理网络连接，所以首先由禁用NetworkManager

1.stop and disable NetworkManager


sudo systemctl stop NetworkManager
sudo systemctl disable NetworkManager


2.drop status of NetworkManger


sudo mv /var/lib/NetworkManager/NetworkManager.state /var/lib/NetworkManager/NetworkManager.state.bak


3.edit interfaces

sudo vim /etc/network/interfaces


# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

auto wlan0
iface wlan0 inet static
netmask 255.255.255.0
gateway 192.168.0.1
address 192.168.0.5
pre-up ip link set wlan0 up
pre-up iwconfig wlan0 essid ssid
wpa-ssid Tenda_68A3D8 # ssid
wpa-psk wxfzwqhqq　　# password


4. config resolve.conf and add nameserver

sudo vim /etc/resolv.conf or sudo vim /etc/resolvconf/resolv.conf.d/base

nameserver 192.168.0.1
5. restart networking

sudo /etc/init.d/networking restart