实验要求：

1、R1和R2使用PPP链路直连，R2和R3把2条PPP链路捆绑为PPP MP直连

2、按照图示配置IP地址

3、R2对R1的PPP进行单向chap验证

4、R2和R3的PPP进行双向chap验证

 1、配置ip地址

R1：

[R1] int Serial 3/0/0
[Rl-Seria13/0/0] ip add 192.168.1.1 24

 R2：

[R2]int s 3/0/0
[R2-Serial3/0/0]ip address 192.168.1.2 24

2、链路聚合

R2：

[R2]int Mp-group 0/0/0    //创建mp-group接口
[R2]int Serial 3/0/1    //进入3/0/1物理接口，将该接口划分到聚合接口中    
[R2-Serial3/0/1]ppp mp Mp-group 0/0/0
[R2]int s 4/0/0    //进入4/0/0物理接口，将该接口划分到聚合接接口  
[R2-Serial4/0/0]ppp mp Mp-group 0/0/0

R3同理：

[R3]int Mp-group 0/0/0  
[R3]int s 3/0/0
[R3-Serial3/0/0]ppp mp Mp-group 0/0/0
[R3]int s 3/0/1 
[R3-Serial3/0/1]ppp mp Mp-group 0/0/0

3、为两个聚合接口配置IP

[R2]int Mp-group 0/0/0
[R2-Mp-group0/0/0]ip address 192.168.2.1 24
​
[R3]int Mp-group 0/0/0  
[R3-Mp-group0/0/0]ip address 192.168.2.2 24

4、为R2配置ppp chap协议

[R2]aaa
[R2-aaa]local-user lhl password cipher 123456
Info: Add a new user.
[R2-aaa]local-user lhl service-type ppp
[R2-aaa]q
[R2]int serial 3/0/0
[R2-Serial3/0/0]ppp authentication-mode chap

被验证方：

[R1]int s 3/0/0
[R1-Serial3/0/0]ppp chap user lhl
[R1-Serial3/0/0]ppp chap password cipher 123456

检测：

 5、R2与R3进行双向chap验证

R2验证R3：

R2：

[R2]aaa
[R2-aaa]local-user lhl password cipher 123456   //创建用户lhl和密码
Info: Add a new user.
[R2-aaa]local-user lhl service-type ppp   //设置服务类型
[R2]int Serial 3/0/1
[R2-Serial3/0/1]ppp authentication-mode chap   //给物理接口设置验证方式
[R2-Serial3/0/1]q
[R2]int s 4/0/0
[R2-Serial4/0/0]ppp authentication-mode chap

R3

[R3-Serial3/0/0]ppp chap user lhl
[R3-Serial3/0/0]ppp chap password cipher 123456
[R3-Serial3/0/0]q
[R3]int s 3/0/1
[R3-Serial3/0/1]ppp chap user lhl
[R3-Serial3/0/1]ppp chap password cipher 123456

R3验证R2：

R3

[R3]aaa
[R3-aaa]local-user lh password cipher 456789
[R3-aaa]local-user lh service-type ppp
[R3-aaa]q
[R3]int s 3/0/0
[R3-Serial3/0/0]ppp authentication-mode chap
[R3-Serial3/0/0]q
[R3]int s 3/0/1
[R3-Serial3/0/1]ppp authentication-mode chap

R2

[R2]int s 3/0/1
[R2-Serial3/0/1]ppp chap user lh
[R2-Serial3/0/1]ppp chap password cipher 456789
[R2-Serial3/0/1]q
[R2]int s 4/0/0
[R2-Serial4/0/0]ppp chap user lh
[R2-Serial4/0/0]ppp chap password cipher 456789