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

实验步骤：

R1配置：

#修改名称
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys	
[Huawei]sysname R1#配置ip地址
[R1]int Serial 3/0/0
[R1-Serial3/0/0]ip add 192.168.1.1 24
[R1-Serial3/0/0]

R2配置：

#创建Mp-group接口并配置ip地址
[R2]int Mp-group 0/0/0
[R2-Mp-group0/0/0]ip add 192.168.2.2 24
[R2-Mp-group0/0/0]#将接口加入到Mp-group组中
[R2]int Serial 4/0/0
[R2-Serial4/0/0]ppp mp Mp-group 0/0/0
[R2]int Serial 3/0/1
[R2-Serial3/0/1]ppp mp Mp-group 0/0/0

R3配置：

#配置Mp-group接口并配置ip地址
[R3]int Mp-group 0/0/0
[R3-Mp-group0/0/0]ip add 192.168.2.3 24
[R3-Mp-group0/0/0]#将接口加入到Mp-group组中
[R3-Serial3/0/1]ppp mp Mp-group 0/0/0
[R3-Serial3/0/1]q
[R3]int se	
[R3]int Serial 3/0/0
[R3-Serial3/0/0]ppp mp Mp-group 0/0/0

R2对R1的PPP进行单向chap验证：

#主验证方配置：配置用户列表及验证方式
[R2-aaa]local-user liudaye password cipher ldy123
Info: Add a new user.
[R2-aaa]local-user liudaye service-type ppp
[R2-aaa]q
[R2]int Serial 3/0/0
[R2-Serial3/0/0]ppp au	
[R2-Serial3/0/0]ppp authentication-mode chap #被验证方配置：配置验证用户名
[R1]int se3/0/0
[R1-Serial3/0/0]ppp chap user liudaye
[R1-Serial3/0/0]ppp chap password cipher ldy123

R2和R3的PPP进行双向chap验证：

#当R2对R3ppp验证配置
#主验证方
[R2]aaa
[R2-aaa]local-user zhangdaye password cipher zdy123
Info: Add a new user.
[R2-aaa]local-user zhangdaye service-type ppp
[R2-aaa]q
[R2]int Serial 4/0/0
[R2-Serial4/0/0]ppp authentication-mode chap 
[R2-Serial4/0/0]q
[R2]int Serial 3/0/1
[R2-Serial3/0/1]ppp authentication-mode chap#被验证方
[R3]int Serial 3/0/1
[R3-Serial3/0/1]ppp chap user zhangdaye
[R3-Serial3/0/1]ppp chap password cipher zdy123
[R3-Serial3/0/1]q
[R3]int Serial 3/0/0
[R3-Serial3/0/0]ppp chap user zhangdaye
[R3-Serial3/0/0]ppp chap password cipher zdy123#当R3对R2ppp验证配置
#主验证方
[R3]aaa
[R3-aaa]local-user wangdaye password cipher wdy123
Info: Add a new user.
[R3-aaa]local-user wangdaye service-type ppp
[R3-aaa]q
[R3]int Serial 3/0/1	
[R3-Serial3/0/1]ppp authentication-mode chap 
[R3-Serial3/0/1]q
[R3]int Serial 3/0/0
[R3-Serial3/0/0]ppp authentication-mode chap #被验证方
[R2]int Serial 4/0/0
[R2-Serial4/0/0]ppp chap user wangdaye
[R2-Serial4/0/0]ppp chap password cipher wdy123
[R2-Serial4/0/0]q
[R2]int Serial 3/0/1
[R2-Serial3/0/1]ppp chap user wangdaye
[R2-Serial3/0/1]ppp chap password cipher wdy123
[R2-Serial3/0/1]q