PPP

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

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