步骤1:配置RA的S1/0接口 在接口内二层封装协议为PPP
[RA]interface Serial 1/0
[RA-Serial1/0]ip address 10.1.1.1 30
[RA-Serial1/0]link-protocol ppp
[RA-Serial1/0]undo shutdown
[RA-Serial1/0]exit
配置RA
RB的S1/0接口配置IP地址 在接口内二层封装协议为PPP
RB的串口PAP验证
[RB]interface Serial 1/0
[RB-Serial1/0]ip address 10.1.1.2 30
[RB-Serial1/0]link-protocol ppp
[RB-Serial1/0]undo shutdown
[RB-Serial1/0]ppp pap local-user userd password simple pswb
RB配置完成之后在RA到RB依次输入命令:
[RB-Serial1/0]shutdown
[RB-Serial1/0]undo shutdown