Datasheet

Lab – Troubleshooting Basic PPP with Authentication

Current configuration : 89 bytes

interface Serial0/0/1

ip address 192.168.23.1 255.255.255.252

clock rate 128000

end

Resolve all problems found for the interfaces. Record the commands used to correct the configuration.

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R2(config)# interface s0/0/1

R2(config-if)# encapsulation ppp

R2(config-if)# ppp authentication chap

c. Use the show running-config | include username command to verify the correct username and

password configurations.

R2# show running-config | include username

username R1 password 0 chap123

username r3 password 0 chap123

Resolve all problems found. Record the commands used to correct the configuration.

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R2(config)# no username r3 password chap123

R2(config)# username R3 password chap123

d. Use the show ppp interface serial command for the serial interface that you are troubleshooting.

R2# show interfaces s0/0/1

Serial0/0/1 is up, line protocol is up

Hardware is GT96K Serial

Internet address is 192.168.23.1/30

MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation PPP, LCP Open

Open: IPCP, CDPCP, loopback not set

Keepalive set (10 sec)

CRC checking enabled

Last input 00:00:07, output 00:00:00, output hang never

Last clearing of "show interface" counters 00:25:09

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: weighted fair

Output queue: 0/1000/64/0 (size/max total/threshold/drops)

Conversations 0/1/256 (active/max active/max total)

Reserved Conversations 0/0 (allocated/max allocated)

Available Bandwidth 1158 kilobits/sec

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

506 packets input, 27348 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants, 0 throttles