1、基础说明：
管理地址：10.255.255.0/24
管理网关：10.255.255.1
2、策略路由配置：
2.1、配置策略路由名称
vi /etc/iproute2/rt_tables
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# # reserved values # 10 manage 255 local 254 main 253 default 0 unspec # # local # #1 inr.ruhep |
2.2、手动配置策略路由
#清理路由表
ip route flush table manage
#配置路由表走的路由
ip route add default via 10.255.255.1 table manage
#配置进入路由表的策略
ip rule add from 10.255.255.0/24 table manage
3、配置pppoe
3.1、安装客户端
yum install rp-pppoe -y
3.2、配置拨号
pppoe-setup
分如下步骤：
3.2.1、输入ISP提供的账户
3.2.2、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）
3.2.3、配置：若长时间连线，连线会被自动中断（我不干，选no）
3.2.4、配置主DNS服务器
3.2.5、配置次DNS服务器
3.2.6、两次输入账户密码以确认
3.2.7、配置普通账户是否有网络连接权限
3.2.8、配置防火墙（没有特殊需求选0就OK）
3.2.9、配置是否开机自动拨号连接
3.2.10、确认刚填写的配置信息
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[root@10-255-255-13 ~]# pppoe-setup Welcome to the PPPoE client setup. First, I will run some checks on your system to make sure the PPPoE client is installed properly... LOGIN NAME Enter your Login Name (default dsp): adsluser426975 # 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): p3p1 # 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: 114.114.114.114 # 主公共DNS服务器IP 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: 223.5.5.5 # 第二公共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 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 # 选 0 直接关闭，不做规则配置 Start this connection at boot time Do you want to start this connection at boot time? Please enter no or yes (default no):yes # 是否系统启动是就连接网络 ** Summary of what you entered ** Ethernet Interface: p3p1 User name: adsluser426975 Activate-on-demand: No Primary DNS: 114.114.114.114 Secondary DNS: 223.5.5.5 Firewalling: NONE User Control: yes Accept these settings and adjust configuration files (y/n)? y # 确认刚才输入的网络配置信息 Adjusting /etc/sysconfig/network-scripts/ifcfg-ppp0 Adjusting /etc/resolv.conf (But first backing it up to /etc/resolv.conf.bak) Adjusting /etc/ppp/chap-secrets and /etc/ppp/pap-secrets (But first backing it up to /etc/ppp/chap-secrets.bak) (But first backing it up to /etc/ppp/pap-secrets.bak) 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' to see the link status. [root@10-255-255-13 ~]# /sbin/ifup ppp0 # 启动网络连接 [root@10-255-255-13 ~]# /sbin/pppoe-status # 查看网络连接状态 pppoe-status: Link is up and running on interface ppp0 6: ppp0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1492 qdisc pfifo_fast state UNKNOWN group default qlen 3 link/ppp inet 123.157.92.92 peer 123.157.92.1/32 scope global ppp0 valid_lft forever preferred_lft forever |
4、测试
pppoe-start，验证adsl好用了。然后pppoe-stop