【求助】linux下拨号上网的问题!

各位大侠:

有谁做过在linux下利用pppoe进行拨号上网的啊!
请指导一下!
出现的问题如下:我的环境是rehat9.0+.rp-pppoe3.8+北京网通

root@localhost etc]# pppoe-start
................TIMED OUT
/usr/sbin/pppoe-start: line 191: 5648 Terminated $CONNECT "$@" >/dev/null 2>&1

[root@localhost etc]# pppoe-status
pppoe-status: Link is down (can't read pppoe PID file /var/run/pppoe.conf-pppoe.pid.pppoe)

谢谢!