router 2600 & stacked in ROMMON option !

cisco4networking · ‎09-20-2006

Hello every one,

I have got 2 cisco routers 2600 series and I am only using them for practicing my CCNA, when I changed the passwords on them, after a few days I didn't log in to one of them and as a result I forgot the password whcih resulted me ending in "rommon" option, after following the password recovery procedures but I was not able to get through of the complete process of the steps in recovering the password and when I was in half way through the recovery process it was suddenly stopped and then I had to turn it off and back again because it was jamed and I had not any other option. I was advised by some friends that I had to reload my router the operating system.

Now, my problem is that I have not been able to install the IOS image from my other router to this router that I have problem with. I have never done it before and I would appreciate your help and assistance if you could explain to me in some easy and clear steps of how to instal it.

Note: The router that I have got problem with is in it's rommon option only and it does not accept any sort of command.

lgijssel · ‎09-20-2006

Just type "reset" and see what happens!

Regards,

Leo

cisco4networking · ‎09-20-2006

The bellow is the reset command I typed and you can also see the result, every time I type reset it gives the same below message.

rommon 1 > reset

System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)

C2600 platform with 32768 Kbytes of main memory

rommon 1 >

rajinikanth · ‎09-20-2006

Hi,

First you try this commands

confreg 0x2102

reset

I think you changed your confreg setting during password recovery.

If your IOS loads then u dont need to upgrade IOS.

IF you wish to upgrade then use this example config

rommon 1 > IP_ADDRESS=172.15.19.11

rommon 2 > IP_SUBNET_MASK=255.255.255.0

rommon 3 > DEFAULT_GATEWAY=172.16.19.1

rommon 4 > TFTP_SERVER=172.15.20.10

rommon 5 > TFTP_FILE=/tftpboot/flashimage name

rommon 6 > tftpdnld

Details of the variables:

IP_ADDRESS?IP address for the router you are using.

IP_SUBNET_MASK?Subnet mask for the router you are using.

DEFAULT_GATEWAY?Default gateway for the router you are using.

TFTP_SERVER?IP address of the server from which you want to download the image file.

TFTP_FILE?Name of the file that you want to download

HTH

Thanks

Raj

cisco4networking · ‎09-20-2006

I used confreg 0x2102 and then reset but it gave me the below:

rommon 1 > confreg 0*2102

rommon 2 > reset

System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)

C2600 platform with 32768 Kbytes of main memory

rommon 1 >

As I am not using the router for any thing except practicing my CCNA therefore; I am not very good with the IP, subnets and e,t,c and that upgrade looks a bit complicated because as I said my router is not connected to internet and I am not using it for anything except practical purposes, I would apprecite that if you could tell me some more about the ip, subnets & default gateway and how to connect them.

I have got an external cable modem which is provided by my ISP and I have got only one machine connected to internet through it.

Thank you

boomboxjoe · ‎09-20-2006

To bypass the password you should type

confreg 0x2102 then reload it then you can change the password. Remember to change it the registr back to 0x2142 (this tells the router to load from NVram) before you reboot the router again.If you need to load a new ios you need to have the router and the pc tftp software (3com is good) all on a switch then tftp the ios.

cisco4networking · ‎09-20-2006

This time it reloaded it as I did the below but still could not change the password:

rommon 3 > confreg 0x2102

You must reset or power cycle for new config to take effect

rommon 4 > reset

System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)

C2600 platform with 32768 Kbytes of main memory

loadprog: bad file magic number: 0x0

boot: cannot load "flash:"

System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)

C2600 platform with 32768 Kbytes of main memory

loadprog: bad file magic number: 0x

boot: cannot load "flash:"

System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)

C2600 platform with 32768 Kbytes of main memory

I did thie below as well as the above:

rommon 1 > confreg 0x2142

You must reset or power cycle for new config to take effect

rommon 2 > reset

System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)

C2600 platform with 32768 Kbytes of main memory

loadprog: bad file magic number: 0x0

boot: cannot load "flash:"

System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)

C2600 platform with 32768 Kbytes of main memory

loadprog: bad file magic number: 0x0

boot: cannot load "flash:"

System Bootstrap, Version 12.1(3r)T2, RELEASE SOFTWARE (fc1)

C2600 platform with 32768 Kbytes of main memory

rommon 1 >

I don't know what else I should follow after the above steps because it does not give me any thing excep reloading and giving me rommon option again !

lgijssel · ‎09-20-2006

It looks like your flash has become invalid. You must follow the procedure below as already suggested by another poster:

rommon 1 > IP_ADDRESS=172.15.19.11

rommon 2 > IP_SUBNET_MASK=255.255.255.0

rommon 3 > DEFAULT_GATEWAY=172.16.19.1

rommon 4 > TFTP_SERVER=172.15.20.10

rommon 5 > TFTP_FILE=/tftpboot/flashimage name

rommon 6 > tftpdnld

Eventually, you could try to erase the flash first with: format flash:

This will give you a clean start but you have to use tftp as described to enter a new IOS.

Regards,

Leo