測試要求：shutdown s0接口再no shut s0接口后ping 12.1.1.1

?

R1： hostname R1username R2 password ciscointerface Serial0/0ip address 12.1.1.1 255.255.255.0encapsulation pppclockrate 64000ppp authentication chap R2： host R2username R1 password ciscointerface Serial0ip address 12.1.1.2 255.255.255.0encapsulation pppclockrate 64000ppp authentication chap

用定義好的用戶名user1來驗證：

R1：username R2 password 0 ciscohostname R1interface Serial0/0ip address 12.1.1.1 255.255.255.0encapsulation pppclockrate 64000ppp authentication chapppp chap hostname user1

?

R2：username user1 password ciscohost R2interface Serial0ip address 12.1.1.2 255.255.255.0encapsulation pppclockrate 64000ppp authentication chap

R1要求驗證,R2不要求驗證:

R1：hostname R1username R2 password 0 ciscointerface Serial0/0ip address 12.1.1.1 255.255.255.0encapsulation pppclockrate 64000ppp authentication papppp pap sent-username R1 password 0 cisco

?

R2：hostname R2username R1 password 0 ciscointerface Serial0ip address 12.1.1.2 255.255.255.0encapsulation pppppp authentication papppp pap sent-username R2 password 0 cisco

?

用定義好的用戶名user1來驗證：

R1：hostname R1username user1 password 0 ciscointerface Serial0/0ip address 12.1.1.1 255.255.255.0encapsulation pppclockrate 64000ppp authentication papppp pap sent-username R1 password 0 cisco

?

R2：hostname R2username R1 password 0 ciscointerface Serial0ip address 12.1.1.2 255.255.255.0encapsulation pppppp authentication papppp pap sent-username user1 password 0 cisco

R1要求驗證,R2不要求驗證:

R1：username R2 password 0 ciscohostname R1interface Serial0/0ip address 12.1.1.1 255.255.255.0encapsulation pppclockrate 64000ppp authentication pap

?

R2：hostname R2interface Serial0ip address 12.1.1.2 255.255.255.0encapsulation pppppp pap sent-username R2 password 0 cisco

?

總結

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