树莓派网络设置相关

切换网络环境后,要注意的几个地方

1.检查网关地址

pi@raspberrypi:/etc $ route -n
Kernel IP routing table
Destination      Gateway          Genmask          Flags    Metric  Ref      Use   Iface
0.0.0.0       192.168.32.1           0.0.0.0              UG        303      0          0     wlan0
192.168.32.0     0.0.0.0          255.255.255.0       U         303      0          0      wlan0

2. /etc/dhcpcd.conf   -------->>>设置静态IP

interface wlan0     #------------>>>无线网卡的设置
inform 192.168.32.38
static routers=192.168.32.1   # ---------------->>>修改为当前网络环境的路由地址
static domain_name_servers=8.8.8.8
static domain_search=114.114.114.114

interface enxb827ebf887e2       #------------>>>有线网卡的设置
inform 192.168.32.74
static routers=192.168.32.1
static domain_name_servers=8.8.8.8
static domain_search=114.114.114.114

#两个不同的网络环境

SSID ABC
inform 192.168.10.38
static routers=192.168.10.1
static domain_name_servers=114.114.114.114
static domain_search=8.8.8.8

SSID XYZ
inform 192.168.32.38
static routers=192.168.32.1
static domain_name_servers=114.114.114.114
static domain_search=8.8.8.8

3.  /etc/wpa_supplicant/wpa_supplicant.conf

.......

network={
ssid="ABC"
psk="YYYYYYYYYYYYYY"   #----------->>>ABC的密码
key_mgmt=WPA-PSK
}

network={
ssid="XYZ"
psk="XXXXXXXXXXXX"       #----------->>>XYZ的密码
key_mgmt=WPA-PSK
}

4.  /etc/resolc.conf       -------->>>设置DNS服务器地址,ping 本地路由OK,但不能上网时检查

# Generated by resolvconf
search 8.8.8.8
nameserver 114.114.114.114