一、拓扑图

二、需求

内网设备通过PPPoE可访问广域网

三、步骤

1.配置IP

R1

[R1-GigabitEthernet0/0/1]ip address 192.168.1.254 24

R2

[R2-LoopBack0]ip address 1.1.1.1 24

PC1

PC2

2.PPPoE Server

配置AAA认证平台

[R2]aaa [R2-aaa]local-user aa password cipher 123456 [R2-aaa]local-user aa service-type ppp

配置地址池

[R2]ip pool PPPoE_pool [R2-ip-pool-PPPoE_pool]network 12.0.0.0 mask 24 [R2-ip-pool-PPPoE_pool]gateway-list 12.0.0.2

配置Virtual Template

[R2]interface Virtual-Template 1 [R2-Virtual-Template1]ppp authentication-mode chap [R2-Virtual-Template1]ip address 12.0.0.2 24 [R2-Virtual-Template1]remote address pool PPPoE_pool

在以太网口启动PPPoE Server

[R2-GigabitEthernet0/0/0]pppoe-server bind virtual-template 1

3.PPPoE Client

配置Dialer接口

[R1]interface Dialer1[R1-Dialer1]dialer user aa[R1-Dialer1]dialer bundle1#配置ppp认证[R1-Dialer1]ppp chap user aa[R1-Dialer1]]ppp chap password cipher123456#配置IP地址由对端分配[R1-Dialer1]ip address ppp-negotiate

建立PPP会话

[R1]interface g0/0/0 [R1-GigabitEthernet0/0/0]pppoe-client dial-bundle-number 1

配置NAT使内网用户可以上网
Easy IP配置

[R1]acl 2000 [R1-acl-basic-2000]rule permit source 192.168.1.0 0.0.0.255 [R1]interface Dialer 1 [R1-Dialer1]nat outbound 2000

配置到PPPoE Server的静态路由

[R1]ip route-static 0.0.0.0 0 Dialer 1

四、测试