1.查看并安装拨号软件：
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[root@redhat ~]
# rpm -qa|grep pppoe
[root@redhat ~]
# yum -y install rp-pppoe
rp-pppoe.i686 0:3.10-8.el6
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2.查看adsl-setup命令所在位置：
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[root@redhat ~]
#whereis adsl-setup
adsl-setup:
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或者直接搜索pppoe信息，yum search pppoe。
3.设置拨号：
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[root@redhat ~]
# pppoe-setup
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首先，你会看到欢迎信息。
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Welcome to the PPPoE client setup. First, I will run some checks on
your system to
make
sure the PPPoE client is installed properly...
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然后要求我们输入登陆名。
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LOGIN NAME
Enter your Login Name (default root): （这里填宽带连接的用户名）
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接着，要求我们选择使用的网络接口。我们这时候，填入我们刚刚设置的那个网卡。对于大多数只有一个网卡的朋友而言，默认eth0就可以了。
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INTERFACE
Enter the Ethernet interface connected to the PPPoE modem
For Solaris, this is likely to be something like
/dev/hme0
.
For Linux, it will be ethX, where
'X'
is a number.
(default eth0):
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接下来，询问的是，adsl连接以后，是否持续保持连接。或者是自动的断开，在指定的时间（以秒数计算）内。多数情况下，我们希望手动的打开关闭连接。所以这里选择默认的no。
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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): (no)
再下来，就是dns了。建议你输入ISP的dns地址。
DNS
Please enter the IP address of your ISP's primary DNS server.
If your ISP claims that
'the server will provide dynamic 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. (server)
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帐号密码是必须，输入两次。密码显示风格和其他的地方一样，不显示在屏幕上。这个，我不知道改怎么填写。太高深的问题了。希望你将你的答案和我分享。：P。
PASSWORD
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Please enter your Password: (宽带连接密码)
Please re-enter your Password:
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下面的设置，是表示是否允许普通用户启用/关闭 ADSL连接。默认是允许。
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Please enter
'yes'
(two letters, lower-
case
.)
if
you want to allow
normal user to start or stop DSL connection (default
yes
): (
yes
)
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我们看下防火墙选项。这里提供的防火墙可以给你提供基本的安全保护。我不推荐你使用----你最好选择“NONE”选项。无论是什么样的用户使用，我都建议你使用额外的工具来配置防火墙规则（iptables目前看来是一个非常不错的工具）。
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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): (0)
Start this connection at boot
time
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是否在开机时，打开这个连接？
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Do you want to start this connection at boot
time
?** (
yes
)
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所有的配置信息填写完成之后，系统将给出一个报告，完整的显示出你输入的配置信息。如果，你确信你输入的配置信息是正确的，输入yes写入配置文件。输入no放弃配置。
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Summary of what you entered **
Ethernet Interface: eth0
User name: root
Activate-on-demand: No
DNS: Do not adjust
Firewalling: NONE
User Control:
yes
Accept these settings and adjust configuration files (y
/n
)? (y)
Please enter no or
yes
(default no):
Congratulations, it should be all
set
up!
Type
'/sbin/ifup ppp0'
to bring up your xDSL link and
'/sbin/ifdown ppp0'
to bring it down.
Type
'/sbin/ADSL-status /etc/sysconfig/network-scripts/ifcfg-ppp0'
to see the link status.
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测试拨号
现在，我们需要测试下我们的拨号是否配置正确了。
输入ADSL-start拨号。一般情况下，ping www.baidu.com就可以了。
当然关闭连接的话，使用命令adsl-stop就可以了。
本文转自灬落魄灬 51CTO博客，原文链接：http://blog.51cto.com/smoke520/1895402，如需转载请自行联系原作者
