dmesg 看看。 好像是收不到DHCP回应包，你手动设置网卡ip看能ping到网关不，如果可以，可能是dhcp3-client的问题，编辑/etc/dhcp/dhcpclient.conf，设置发送hostname试试。
2010/10/18 张增波 <zengbo.zh...@gmail.com> > 大家好， > 谁用过这款无线网卡？我按照这两个网址 > http://wiki.debian.org/rt2870sta > http://wiki.debian.org/WiFi/HowToUse > 的提示操作，无法正常启动获得IP地址。该网卡在window下工作正常。 > > 我的具体步骤( 命令行版本)，首先编辑 /etc/network/interfaces 文件， > > iface wlan0 inet dhcp > wpa-ssid <my-ssid here> > wpa-psk <my-password here> > > 然后 ifup wlan0 ,结果： > > z...@zzb:~$ sudo ifup wlan0 > > [sudo] password for zzb: > > Internet Systems Consortium DHCP Client 4.1.1-P1 > > Copyright 2004-2010 Internet Systems Consortium. > > All rights reserved. > > For info, please visit https://www.isc.org/software/dhcp/ > > > Listening on LPF/wlan0/c8:3a:35:cd:6e:4f > > Sending on LPF/wlan0/c8:3a:35:cd:6e:4f > > Sending on Socket/fallback > > DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7 > > DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 15 > > DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12 > > DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 15 > > DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12 > > No DHCPOFFERS received. > > No working leases in persistent database - sleeping. > > > NetworkManager图形界面版本也试过，不好用。 > 希望有经验的兄弟姐妹给点提示。 > > -- Arch Linuxer, Pythoner, Geek --> Blog: http://apt-blog.net
