Press RETURN to get started!
Router>en
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname r0
r0(config)#int s0/0
r0(config-if)#no shut
%LINK-5-CHANGED: Interface Serial0/0, changed state to down
r0(config-if)#clock rate 64000
r0(config-if)#ip add 192.168.0.1 255.255.255.0
r0(config-if)#en
r0(config-if)#encapsulation ppp
r0(config-if)#
r0 con0 is now available
Press RETURN to get started.
r0>en
r0#config t
Enter configuration commands, one per line. End with CNTL/Z.
r0(config)#int s0/0
r0(config-if)#en
r0(config-if)#encapsulation ppp
r0(config-if)#ppp pap sen
r0(config-if)#ppp pap sent-username r0 pa
r0(config-if)#ppp pap sent-username r0 password
r0(config-if)#ppp pap sent-username r0 password yanjin
r0(config-if)#username r1 pa
r0(config-if)#username r1 password jinyan
r0(config)#int s0/0
r0(config-if)#en
r0(config-if)#encapsulation ppp
r0(config-if)#ppp au
r0(config-if)#ppp authentication pap
r0(config-if)#
%LINK-5-CHANGED: Interface Serial0/0, changed state to up
Router>en
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname r1
r1(config)#int s0/0
r1(config-if)#no shut
%LINK-5-CHANGED: Interface Serial0/0, changed state to up
r1(config-if)#ip add 192.168.0.2 255.255.255.0
r1(config-if)#en
r1(config-if)#encapsulation ppp
r1(config-if)#ppp pap s
r1(config-if)#ppp pap sent-username r1 password jinyan
r1(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to
up
r1(config-if)#exit
r1(config)#username r0 password yanjin
r1(config)#int s0/0
r1(config-if)#en
r1(config-if)#encapsulation ppp
r1(config-if)#ppp aut
r1(config-if)#ppp authentication pap
r1(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to
down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to
up
r1(config-if)#end
%SYS-5-CONFIG_I: Configured from console by console
r1#ping 192.168.0.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.0.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 5/5/6 ms
r1#192.168.0.1
Trying 192.168.0.1 ...Open
[Connection to 192.168.0.1 closed by foreign host]