Hi folks,
I've been tried to work on VOL2 Lab1 using GNS3 for a couple of days. I am
having serious trouble with Serial interfaces.
To keep it short, R2 is connected to R5 using S0/1 and vice-versa, no matter
what I try the line protocol on that serial interface is always down.
My original config on R2 and R5:
R2
----
username R5R2 password brayden
!
interface Serial0/1
description R5 s0/1
ip address 150.50.9.2 255.255.255.192
encapsulation ppp
clock rate 2000000
ppp reliable-link
ppp authentication pap
ppp pap sent-username R2R5 password 0 brayden
!
R5
------
username R2R5 password brayden
!
interface Serial0/1
description R5 s0/1
ip address 150.50.9.2 255.255.255.192
encapsulation ppp
clock rate 2000000
ppp reliable-link
ppp authentication pap
ppp pap sent-username R5R2 password 0 brayden
!
line protocol down on R2 and R5
debug ppp authentication did not help as I was supecting some issue with PPP
authentication. I then removed all the ppp section on both R2 and R5 and change
clock rate on R2 :
R2
----
interface Serial0/1
description R5 s0/1
ip address 150.50.9.2 255.255.255.192
clock rate 64000
!
R5
------
interface Serial0/1
description to R2 s0/1
ip address 150.50.9.5 255.255.255.192
clock rate 2000000
!
Same result: this f... line protocol is still down
R5(config-if)#do sh int s0/1
Serial0/1 is up, line protocol is down
Hardware is GT96K Serial
Description: to R2 s0/1
Internet address is 150.50.9.5/26
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, loopback not set
Keepalive set (10 sec)
Last input never, output 00:00:07, output hang never
Last clearing of "show interface" counters 00:04:50
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
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
32 packets output, 1693 bytes, 0 underruns
0 output errors, 0 collisions, 10 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
I tried all applicable troubleshooting step the cisco Output Interpreter
suggested me to do with success. I am coming to you as you are my "Gateway of
last resort".
Please help.
Patrice Ngassam
CEO NEN NET Inc.
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