Can't ping serial interface.

kadshah

I can't get serial interface 0 to ping itself. It worked fine yesterday and I did a copy run start before shutting down my 2500 router. What I'm trying to accomplish is pinging from 1 serial interface to another. However both 2500 routers are unable to ping each other or even to ping itself. I ran the sh controller int s 0 on both one router is setup as a DCE clockrate 64000 the other a DTE. Both have ip addresses 192.168.10.1 the other 192.168.10.2. I ran the no shutdown command on both and did the copy run start. Here's the serial output on both routers.

interface Serial0
bandwidth 64
ip address 192.168.10.2 255.255.255.0
no ip directed-broadcast
encapsulation ppp
ppp authentication chap

interface Serial0
description Connected to Router_Kaj
ip address 192.168.10.1 255.255.255.0
encapsulation ppp
bandwidth 64
clockrate 64000
ppp authentication chap

Can anyone spot my mistake did I leave out a command?

thanks,

johnnynodough

only thing I see is the context of the clocking. Should be Clock Rate 64000, but if you typed clockrate 6400 it would give you an error so I assume you typed it in that way.

have you configured usernames and passwords for chap authentication?

RouterA(config)#Username RouterB password password

---

RouterB(Config)#Username RouterA password password

kadshah

I checked the clock rate it's fine i remove the PPP authentication from both routers but i still can't ping to either router. Here's a portion of the output of sh int s 0
Serial0 is up, line protocol is down
Hardware is HD64570
Description: Connected to Router_Kaj
Internet address is 192.168.10.1 255.255.255.0
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation PPP, loopback not set, keepalive set (10 sec)

and her's the output of the second router

Serial0 is up, line protocol is down
Hardware is HD64570
Internet address is 192.168.10.2/24
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation PPP, loopback not set, keepalive set (10 sec)The line protocol is down on both any ideas?


thanks,

Kaj

johnnynodough

Both of those show int have the same ip address ..192.168.10.1/24, they look like the same output as the hardware and description match as well.

kadshah

i just figured it out. I had to run the shutdown command first then run the no shutdown command. Strange, i thought the no shutdown was enough to get the "line protocol up" but i was wrong.

kadshah

sorry about that i copied the wrong sh int command. Each device had a different ip address. thanks for your input.

johnnynodough

Whats the IOS versions on those?

kadshah

I know both versions are ancient time to upgrade. Where can i do a upgrade for free if that's possible?


ROM: System Bootstrap, Version 5.2(8a), RELEASE SOFTWARE
BOOTFLASH: 3000 Bootstrap Software (IGS-RXBOOT), Version 10.2(8a), RELEASE SOFTW
ARE (fc1)

kaj uptime is 4 hours, 5 minutes
System restarted by power-on
System image file is "flash:c2500-i-l.120-17a.bin"
IOS (tm) 3000 Software (IGS-D-L), Version 10.3(5), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-1995 by cisco Systems, Inc.
Compiled Tue 08-Aug-95 19:22 by nitin
Image text-base: 0x0302184C, data-base: 0x00001000

ROM: System Bootstrap, Version 5.2(5), RELEASE SOFTWARE
ROM: 3000 Bootstrap Software (IGS-RXBOOT), Version 10.2(5), RELEASE SOFTWARE (fc
1)

AVANI uptime is 4 hours, 6 minutes
System restarted by power-on
System image file is "flash:igs-d-l_.bin", booted via flash

johnnynodough

Your gonna have to find someone who was the Ios versions. There is a proram called IOS hunter that will find some older versions for you (should be able to find at least 12.0 on there), but the problem is you often get incomplete downloads that dont pass the checksum.

Alternatively, check out Ebay for IOS, you will find some CD's that have training test generators and such, and just happen to have copies of IOS for educational purposes. The are really selling the IOS, but since they cant legally do that, they have to claim to give it away free for eductaional purposes and sell you some worthless test sims.

You definetelty need to upgrade, IOS 10 wont cut the mustard for the CCNA, many commands will be different.

You are going to need to upgrade your memory im sure, youll need 16/16 to run the later versions of IOS, and will also need an updated BOOTROM chip, yours is 5, look for version 10c, so that the router will support 16/16. 8/8 will run 12.1 i believe, could be wrong though. Latest is 12.4 flavors.

rossonieri#1

kadshah wrote:

I checked the clock rate it's fine i remove the PPP authentication from both routers but i still can't ping to either router. Here's a portion of the output of sh int s 0
Serial0 is up, line protocol is down
Hardware is HD64570
Description: Connected to Router_Kaj
Internet address is 192.168.10.1 255.255.255.0
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation PPP, loopback not set, keepalive set (10 sec)

and her's the output of the second router

Serial0 is up, line protocol is down
Hardware is HD64570
Internet address is 192.168.10.2/24
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 1/255
Encapsulation PPP, loopback not set, keepalive set (10 sec)The line protocol is down on both any ideas?


thanks,

Kaj

mismatch encapsulation, or perhaps you didnt plug the cable, or perhaps mismatch authentication if you use a chap. clocking on dce set?
you can use sh int s0 to see the DTS DTR RTS CTS etc to see your config OK.