使用pppoe来上ADSL出问题！？

我家安装的是网通的ADSL，我在gentoo中emerge了rp-pppoe包，然后使用了pppoe-setup命令来配置用户名和密码，再使用pppoe-start的时候，报告超时。
我在内核中已经支持pppoe相关选项，并且把eth0的IP地址全部去掉了，使eth0保持UP和RUNNING状态。
有没有对pppoe了解的高手解答一下，多谢！

修改了pppoe-start脚本，打印出了debug信息，出错的地方如下：
---------------------------------------------
* The following section shows the pppd command we will invoke
pppd invocation
/usr/bin/setsid /usr/sbin/pppd pty '/usr/sbin/pppoe -p /var/run/-pppoe.pid.pppoe -I eth0 -T 80 -U -m 1412 ' noipdefault noauth default-asyncmap defaultroute hide-password nodetach usepeerdns mtu 1492 mru 1492 noaccomp nodeflate nopcomp novj novjccomp user 26753742 lcp-echo-interval 20 lcp-echo-failure 3 debug
---------------------------------------------
Couldn't set tty to PPP discipline: Invalid argument
Waiting for 1 child processes...
script /usr/sbin/pppoe -p /var/run/-pppoe.pid.pppoe -I eth0 -T 80 -U -m 1412 -D /tmp/pppoe-debug-12132/pppoe-debug.txt-0, pid 12195
pppoe: read (asyncReadFromPPP): Session 8483: Input/output error
Script /usr/sbin/pppoe -p /var/run/-pppoe.pid.pppoe -I eth0 -T 80 -U -m 1412 -D /tmp/pppoe-debug-12132/pppoe-debug.txt-0 finished (pid 12195), status = 0x1
---------------------------------------------
* The following section is an extract from your log.
* Look for error messages from pppd, such as
* a lack of kernel support for PPP, authentication failure
* etc.
Extract from /var/log/messages
Aug 5 07:49:28 Karl pppoe[11690]: read (asyncReadFromPPP): Session 11391: Input/output error
Aug 5 07:49:28 Karl pppoe[11690]: Sent PADT
Aug 5 07:49:28 Karl pppd[11686]: Exit.
Aug 5 07:49:28 Karl pppoe-connect: PPPoE connection lost; attempting re-connection.
Aug 5 07:49:33 Karl pppd[11773]: pppd 2.4.2 started by root, uid 0
Aug 5 07:49:33 Karl pppd[11773]: Couldn't set tty to PPP discipline: Invalid argument
Aug 5 07:49:53 Karl pppoe[11777]: PADS: Service-Name: ''
Aug 5 07:49:53 Karl pppoe[11777]: PPP session is 9563 (0x255b)
Aug 5 07:49:53 Karl pppoe[11777]: read (asyncReadFromPPP): Session 9563: Input/output error
Aug 5 07:49:53 Karl pppoe[11777]: Sent PADT
Aug 5 07:49:53 Karl pppd[11773]: Exit.

eth0 要IP吧，如192.168.0.*** 是吗？

嗯？不是吧？
我看pppoe的man手册里面强调不要配IP的。

问题出在这里了：
Couldn't set tty to PPP discipline: Invalid argument

正常的应该是：
Aug 5 09:44:07 ejserver pppd[7548]: pppd 2.4.2 started by root, uid 0
Aug 5 09:44:07 ejserver pppd[7548]: Using interface ppp0
Aug 5 09:44:07 ejserver pppd[7548]: Connect: ppp0 <--> /dev/pts/0
Aug 5 09:44:07 ejserver pppoe[7552]: PADS: Service-Name: ''
Aug 5 09:44:07 ejserver pppoe[7552]: PPP session is 1421 (0x58d)
Aug 5 09:44:10 ejserver pppd[7548]: Remote message: Welcome to use ...
Aug 5 09:44:10 ejserver pppd[7548]: PAP authentication succeeded

那该修改哪里？？？
直接修改脚本里面的那行命令么？

安装后缺省的脚本就好好的，不需要修改吧。
你检查一下你的内核设置，ppp是否支持tty端口？

已经解决，多谢，
我把PPP相关选项都选上了，呵呵

我的eth0配有IP的啊~~~
也没问题啊

我的也是！！！！晕4

eth0有没有IP都无所谓的。