请参见图示。路由器 R1(作为 DCE 设备)已经配置为使用带身份验证的 PPP 封装。下列哪组命令可使另一路由器(作为 DTE 设备)通过 serial 0/0/0 接口与路由器 R1 通信?
|
|
Router(config)#hostname R3
R3(config)# username R1 password Cisco
R3(config)#interface serial 0/0/0
R3(config-if)# encapsulation ppp
R3(config-if)# ip address 172.16.3.3 255.255.255.0
R3(config-if)# ppp authentication chap
|
|
Router(config)#hostname R3
R3(config)# username R3 password Cisco
R3(config)#interface serial 0/0/0
R3(config-if)# encapsulation ppp
R3(config-if)# ip address 172.16.3.3 255.255.255.0
R3(config-if)# ppp authentication chap
|
|
Router (config)# username Router password Cisco
Router(config)#interface Serial 0/0/0
Router (config-if)# clockrate 64000
Router (config-if)# encapsulation ppp
Router (config-if)# ip address 172.16.3.1 255.255.255.0
Router config-if)# ppp authentication chap
|
|
Router (config)# username R1 password Cisco
Router config)# interface Serial 0/0/0
Router (config-if)# clockrate 64000
Router config-if)# encapsulation ppp
Router (config-if)# ip address 172.16.3.1 255.255.255.0
Router (config-if)# ppp authentication chap |