系统启动时出现了几个错误，
1：载入ISDN模块 失败
2：弹出界面ADSL 失败
3：弹出界面eth0 Error: an inet prefix is expected rather than "192.168.0.108/17951".
在 eth0 添加地址 192.168.0.108 时出错。
bind: Cannot assign requested address
RTNETLINK answers: No such device
另外执行adsl－status后：
Link is down (can't read pppoe PID file /var/run/pppoe-adsl.pid.pppoe)
