搞了一周终于能上网了。。。。。谢天谢地。。。。

求救求了一周了，也不见有好贴。。结果还是得自己摸索，辛苦～
下面就来说说偶的经验，给不能上网的兄弟们～



Fedora 7系统中adsl拨号


终端中：
#pppoe-setup

Welcome to the Roaring Penguin ADSL client setup. First, I will run some checks on your system to make sure the PPPoE client is installed properly... Looks good! Now, please enter some information:

USER NAME
>;>;>; Enter your PPPoE user name (default XXX): 在这里输入ADSL用户名

INTERFACE
>;>;>; Enter the Ethernet interface connected to the ADSL modem
For Solaris, this is likely to be something like /dev/hme0.
For Linux, it will be ethn, where 'n' is a number. (default eth0):如果一个网卡就在这里输入eth0

Do you want the link to come up on demand, or stay up continuously? If you want it to come up on demand, enter the idle time in seconds after which the link should be dropped. If you want the link to stay up permanently, enter 'no' (two letters, lower-case.) NOTE: Demand-activated links do not interact well with dynamic IP addresses. You may have some problems with demand-activated links. >;>;>; Enter the demand value (default no):直接回车

DNS
Please enter the IP address of your ISP's primary DNS server. If your ISP claims that 'the server will provide DNS addresses', enter 'server' (all lower-case) here. If you just press enter, I will assume you know what you are doing and not modify your DNS setup.
>;>;>; Enter the DNS information here:在这里输入server 即自动获得DNS

PASSWORD
>;>;>; Please enter your PPPoE password:输入ADSL密码
>;>;>; Please re-enter your PPPoE password:再输入一次

FIREWALLING
Please choose the firewall rules to use. Note that these rules are very basic. You are strongly encouraged to use a more sophisticated firewall setup; however, these will provide basic security. If you are running any servers on your machine, you must choose 'NONE' and set up firewalling yourself. Otherwise, the firewall rules will deny access to all standard servers like Web, e-mail, ftp, etc. If you are using SSH, the rules will block outgoing SSH connections which allocate a privileged source port.

The firewall choices are:
0 - NONE: This script will not set any firewall rules. You are responsible for ensuring the security of your machine. You are STRONGLY recommended to use some kind of firewall rules.

1 - STANDALONE: Appropriate for a basic stand-alone web-surfing workstation

2 - MASQUERADE: Appropriate for a machine acting as an Internet gateway for a LAN
>;>;>; Choose a type of firewall (0-2):这里输入0

** Summary of what you entered **
Ethernet Interface: eth0
User name: XXX
Activate-on-demand: No
DNS: Do not adjust
Firewalling: MASQUERADE
>;>;>; Accept these settings and adjust configuration files (y/n)?这里输入y即可
配置完成！
启动拨号：pppoe start
停止断网：pppoe stop


上面是抄某位大大的


但是过程中我发现还有二个选项，英文不好，没看懂，就全选了Y，后来才知道什么意思：
1是 问你是否开机自动连接
2是 问你是否允许其他帐号修改连接




因为有二选项看不懂，多做了次，结果 进入系统 －－管理－－网络 既然发现有3个连接 一个是 本来的默认的eth0 下面有两个



于是立刻删除一个连接
系统－－管理 －－网络 会发现 PPOE0用已经处于激活状态了 ！！！！！pppoe staart命令，打开 firefox 哦也！好了