【已解决】Luckfox-Pico-Ultra-W 连接 WiFi 后 wlan0 接口下无 IP 地址

2024-11-15 6:53

开发板：Luckfox-Pico-Ultra-W
系统：网盘 Luckfox_Pico_Ultra_W_eMMC
操作步骤：参考文档 https://wiki.luckfox.com/zh/Luckfox-Pic ... tra-W-WIFI

Code: Select all

[root@luckfox root]# cat /etc/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant
ap_scan=1
update_config=1

network={
        ssid="8266_Only"
        psk="<rm>"
        key_mgmt=WPA-PSK
}
[root@luckfox root]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq qlen 1000
    link/ether 5a:cd:99:04:06:4d brd ff:ff:ff:ff:ff:ff
    inet 192.168.25.48/24 brd 192.168.25.255 scope global eth0
       valid_lft forever preferred_lft forever
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq qlen 1000
    link/ether 1c:2f:a2:27:3f:36 brd ff:ff:ff:ff:ff:ff
4: usb0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether da:dd:90:74:48:e5 brd ff:ff:ff:ff:ff:ff
    inet 172.32.0.93/16 brd 172.32.255.255 scope global usb0
       valid_lft forever preferred_lft forever

问题：wlan0 接口无 IP 地址，路由器上显示为 0.0.0.0

请问应该如何解决？

2024-11-15 12:37

您好连接wifi后还需要使用udhcpc -i wlan0 命令从路由器的 DHCP 服务器中获取 IP地址

2024-11-15 13:43

Crocodile wrote: ↑2024-11-15 12:37 您好连接wifi后还需要使用udhcpc -i wlan0 命令从路由器的 DHCP 服务器中获取 IP地址

看到官方文档光速更新了，参照文档可以成功获取 IP 地址，多谢！

Code: Select all

[root@luckfox root]# udhcpc -i wlan0
udhcpc: started, v1.36.1
udhcpc: broadcasting discover
udhcpc: broadcasting discover
udhcpc: broadcasting select for 192.168.2.246, server 192.168.2.1
udhcpc: lease of 192.168.2.246 obtained from 192.168.2.1, lease time 7200
deleting routers
adding dns 192.168.2.1
[root@luckfox root]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq qlen 1000
    link/ether 5a:cd:99:04:06:4d brd ff:ff:ff:ff:ff:ff
    inet 192.168.2.37/24 brd 192.168.2.255 scope global eth0
       valid_lft forever preferred_lft forever
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq qlen 1000
    link/ether 1c:2f:a2:27:3f:36 brd ff:ff:ff:ff:ff:ff
    inet 192.168.2.246/24 brd 192.168.2.255 scope global wlan0
       valid_lft forever preferred_lft forever
4: usb0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether f6:c2:19:c4:41:15 brd ff:ff:ff:ff:ff:ff
    inet 172.32.0.93/16 brd 172.32.255.255 scope global usb0
       valid_lft forever preferred_lft forever