en

conf t

ho RA                           <<更改主机名

no ip domain-lo                   <<禁用DNS 

lin c 0                            

logg s                           <<显示同步

exec-t 0 0                        <<配置超时

exit

in s0/0

ip ad 192.168.1.1 255.255.255.0      <<配置IP地址掩码

encapsulation ppp                  <<封装协议为PPP

ppp authentication chap             <<启用CHAP认证

ppp chap hostname zsc              <<配置主认证方发出的认证用户名

no sh

exit

in s0/1

ip ad 192.168.1.2 255.255.255.0

encapsulation ppp

ppp authentication chap pap <
ppp chap hostname zsc
no sh
exit
username td01 password 0 123       <<配置认证数据库(被认证方的主机名和密码)
username td02 password 0 456
exit

en

conf t

ho RB

no ip domain-lo

lin c 0

logg s

exec-t 0 0

exit

in s0/0

ip ad 192.168.1.3 255.255.255.0

encapsulation ppp

ppp chap hostname td01             <<配置本机主机名

no sh

exit

username zsc password 0 123  <<配置认证用户名和密码(发送主认证方用户名和本机密码)

exit

en

conf t

ho RC

no ip domain-lo

lin c 0

logg s

exec-t 0 0

exit

in s0/1

ip ad 192.168.1.4 255.255.255.0

encapsulation ppp

ppp chap hostname td02

no sh

exit

username zsc password 0 456

exit