Ubuntu中文论坛

ifup wlan0就显示：
wmaster0: unknown hardware address type 801
wmaster0: unknown hardware address type 801
Listening on LPF/wlan0/00:1f:3b:44:11:27
Sending on LPF/wlan0/00:1f:3b:44:11:27
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 6
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 17
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 4
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
然后我只能ifdown wlan0 再ifup wlan0 反复多次才能连上无线网，为什么

这些提示表示DHCP服务器没有正常工作。即DHCP服务器没有返回IP配置信息。

目前无线网卡的设置不推荐使用命令行。建议使用NetworkManager（网络管理）。让系统自动配置IP。

谢了，我喜欢手动配置呵呵