預先配置用戶名密碼ui
HQ#sh run | s user
username ccna password 0 ciscospa
PPP中PAP認證配置rest
Branch#sh run int s1/0
Building configuration...ip
Current configuration : 171 bytes
!
interface Serial1/0
ip address 192.168.1.1 255.255.255.0
encapsulation ppp
ppp pap sent-username ccna password 0 ciscoci
HQ(config-if)#do sh run int s1/0
Building configuration...hash
Current configuration : 133 bytes
!
interface Serial1/0
ip address 192.168.1.2 255.255.255.0
encapsulation ppp
ppp authentication io
注:PAP採用兩次握手認證,報文中使用了明文密碼。配置
PPP中HCAP認證配置密碼
Branch(config-if)#do sh run int s1/0
Building configuration...word
Current configuration : 177 bytes
!
interface Serial1/0
ip address 192.168.1.1 255.255.255.0
encapsulation ppp
ppp chap hostname ccna
ppp chap password 0 cisco
serial restart-delay 0
HQ(config-if)#do sh run int s1/0
Building configuration...
Current configuration : 133 bytes
!
interface Serial1/0
ip address 192.168.1.2 255.255.255.0
encapsulation ppp
ppp authentication chap
注:CHAP認證採用三次握手方式,報文中傳遞的是被hash後的數值