2023年11月28日发(作者：)
CentOS7拨号上⽹（ADSLPPPoE）
步骤概述：
1、搜寻PPPoE相关软件，本⼈使⽤的是rp-pppoe
yum search pppoe
2、使⽤yum安装rp-pppoe
yum install rp-pppoe -y
3、开始配置PPPoE连接
pppoe-setup
4、输⼊ISP提供的账户
5、输⼊以太⽹卡代号，默认是eth0（注：CentOS 7已不是默认eth0，⾃⾏使⽤ifconfig命令即可找到）
6、配置：若长时间连线，连线会被⾃动中断（我不⼲，选no）
7、配置主DNS服务器
8、配置次DNS服务器
9、两次输⼊账户密码以确认
10、配置普通账户是否有⽹络连接权限
11、配置防⽕墙（没有特殊需求选0就OK）
12、配置是否开机⾃动拨号连接
13、确认刚填写的配置信息
14、连接⽹络尽情享受吧！
相关命令@ 连接⽹络：/sbin/ifup ppp0，断开连接：/sbin/ifdown ppp0，查看⽹络状态：/sbin/pppoe-status
....................................... 这是华丽丽的分割线 .......................................
获取以太⽹卡代号
[dsp@dsp Desktop]$ ifconfig
enp9s0: flags=4163
ether 20:1b:06:3d:22:05 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 2297 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 18
lo: flags=73
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 0 (Local Loopback)
RX packets 2 bytes 110 (110.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2 bytes 110 (110.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:36:45:23 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
配置rp-pppoe客户端
[root@dsp Desktop]# pppoe-setup
Welcome to the PPPoE client setup. First, I will run some checks on
your system to make sure the PPPoE client is
LOGIN NAME
Enter your Login Name (default dsp): 12345 # ⽹络服务提供商提供的账户
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): enp9s0 # 选择以太⽹卡，有线⽹卡
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 # 输⼊no，否则若长时间连线，连线会被⾃动中断
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.
Enter the DNS information here: 8.8.8.8 # 主DNS服务器IP，本⼈使⽤Google Public DNS
Please enter the IP address of your ISP's secondary DNS server.
If you just press enter, I will assume there is only one DNS server.
Enter the secondary DNS server address here: 8.8.4.4 # ⼆级DNS服务器IP
PASSWORD # 账户对应的密码，需两次输⼊以确认⽆误
Please enter your Password:
Please re-enter your Password:
USERCTRL
Please enter 'yes' (three letters, lower-case.) if you want to allow
normal user to start or stop DSL connection (default yes): yes # 普通⽤户是否可以启动停⽌⽹络连接
FIREWALLING
Adjusting /etc/sysconfig/network-scripts/ifcfg-ppp0
Adjusting /etc/
(But first backing it up to /etc/)
Adjusting /etc/ppp/chap-secrets and /etc/ppp/pap-secrets
(But first backing it up to /etc/ppp/)
(But first backing it up to /etc/ppp/)
Congratulations, it should be all set up!
Type '/sbin/ifup ppp0' to bring up your xDSL link and '/sbin/ifdown ppp0' # rp-pppoe的操作命令
to bring it down.
Type '/sbin/pppoe-status /etc/sysconfig/network-scripts/ifcfg-ppp0'
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