-----QUESTIONS-----

• Configure the link between ROUTER _4 and ROUTER_5 using PPP encapsulation.

• Configure ROUTER_4 to request ROUTER_5 to authenticate via PPP.

• ROUTER_5 should respond with the username ROUTER5 and the clear-text

password CISCO.

• Configure ROUTE_5 to request ROUTER_4 to authenticate via PPP.

• ROUTER_4 should reply with the username ROUTER4 and an MD5 hash value that

represents the password CISCO.

--------ANSWER----------

R4:

username ROUTER5 password 0 CISCO

!

interface Serial0/1

encapsulation ppp

ppp authentication pap

R5:

username ROUTER4 password 0 CISCO

!

interface Serial0/1

encapsulation ppp

clockrate 64000

ppp authentication chap

ppp pap sent-username ROUTER5 password 0 CISCO

--------

My question is this, since ROUTER5 is requestin R4 to authenticate through CHAP.

Don't I need to configure below on ROUTER 4 serial interface...

ppp chap hostname ROUTER4

ppp chap password CISCO