请高手们指导校园网的问题,涉及DHCP,万分感谢

1 本人原来用的是vista,在学校用inode h3c V2.40-c0328客户端登陆。
2 寒假在家装ubuntu后开机就能上网(局域网,不需要设置ip等东西)
3 回校后尝试过http://forum.ubuntu.org.cn/viewt ... mp;highlight=802.1x中的方法,但不成功。

问题如下:

把上网方式改成dhcp后重新启动网络:sudo /etc/init.d/networking restart
显示如下:
Listening on LPF/eth0/00:16:d3:e8:7b:9f
Sending on LPF/eth0/00:16:d3:e8:7b:9f
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
grep: /etc/resolv.conf: No such file or directory

接着运行sudo linux1x -d
显示:
1. eth0:avahi
2. eth0
无论我选1还是2都显示:
E3137:
authentication failed

客户端在安转过程中很顺利,应该没问题,至于问题到底在哪,请大家赐教,我不想就此放弃linux,谢谢!