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Cisco IAD 2432-24FXS stuck in Rommon mode. - Cisco Iad2432-24fxs 1yearwarranty 2xavailable Iad 2432 - Router Ask More Qty

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Is there a valid IOS image on the flash on the IAD? If it will only boot to ROMMON, also try issuing the "boot" command from the console prompt. If it then boots, you need to go into the configuration and set the boot election to auto-boot.

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Posted on Dec 06, 2012

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1841 router in rommon mode cannot install flash


Basically you will need to use TFTP to get the IOS back on. HERE is an article from Cisco that explains how to do it. I have done this before and even though it takes a while to reload the IOS (because in my case I had to use a serial connection at 9600 baud) it does work.

Aug 25, 2012 | Cisco (1841) Router (cisco1841)

1 Answer

Flash: CompactFlash not present I am getting above error when i power on a cisco 1841 router


Did you do anything to the compact flash, like try to format it and copy an image to it? Cisco routers are very picky about the formatting on the flash. It has to be formatted FAT16 and the image has to be the first file on the card.

Jul 24, 2017 | Cisco Computers & Internet

1 Answer

Hello, I tried the steps you have mentioned in the link below: http://www.fixya.com/support/t3932749-password_recovery_cisco_catalyst_4506 and the other similar resolutions on the cisco website but...


Please make sure you have only one supervisor module installed on your switch or else pull out the backup sup module and do this activity .

In the last step of reset it will ask to save the config.

do you wish to save this configuration? y/n [n]: y
You must reset or power cycle for new configuration to take effect

do not forget to type in y there.

Jan 01, 2011 | Cisco Catalyst 4506-E Cat4500 E-series...

1 Answer

Dear Sir I have a CISCO WS-C2948G-L3 switch with me, when I power it up I get the following message :- ROMMON: Cold Reset frame @0x00000000 ROMMON: Reading reset reason register ROMMON: Valid...


It looks like the IOS is bad or not not there.
You need to instal a new IOS onto the switch.


For more help during installation you can refer
http://www.cisco.com/en/US/products/hw/switches/ps663/products_tech_note09186a00800949c3.shtml#cat4k

Dec 09, 2010 | Cisco WS-C2948G-L3 Catalyst 2948G-L3...

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I have a problem with a cisco catalyst 2948G-L3. A have erase of mistake the bootflash. I have tried in some way to download a new IOS, i have the IOS bu i cannot download it in the flash because the...


Two ways to do that are xmodem (slow) or Tftp from rommon mode. (fast)
Place the IOS image in your tftp server directory and start tftp server.
Then enter the following in the switch exactly as below as all are case sensative:
rommon 1> IP_ADDRESS=xxx.xxx.xxx.xxx
rommon 2> IP_SUBNET_MASK=xxx.xxx.xxx.xxx
rommon 3> DEFAULT_GATEWAY=xxx.xxx.xxx.xxx
rommon 4> TFTP_SERVER=xxx.xxx.xxx.xxx
rommon 5> TFTP_FILE=full file name of ios as it reads
rommon 6> TFTP_CHECKSUM=0
this one is in lower case
rommon 7> tftpdnld

If you dont have a tftp server below is a link to a free one
http://www.solarwinds.net/Tools/Free_tools/TFTP_Server/

You will need the .bin IOS image for this and not the .tar file. The .tar file contains router cluster management files that you must issue the archive tar command to load all of the files. Can do that if needed after router is back online.

P.S.: If this information was helpful, please rate this solution.

Feb 24, 2009 | Cisco Catalyst 2948G-L3 Networking Switch

1 Answer

BUT IT IS NOY COMING THE PREVILAGE MODE(ROUER>)


normally if you forget the password with cisco, boot the router in rommon mode and change the registry to 0x2142 and reboot the router and change the password and change back the registry to 0x2102.

did you tried this all ...can u explain more about the same

Feb 09, 2009 | Cisco 2610XM Router

1 Answer

Bootup Router and then nothing


Hi,
Your router is in the wrong mode. You need to change this by changing the conf-register to 0x2102

at the rommon prompt type in

config-reg 0x2102

reboot

If there are any errors you can get the correct syntax by typing ? at the rommon prompt the line number will go up on every line.

The way to get into rommon mode is by pressing the break key from Hyperterminal as the router is rebooting. So make sure you don't do this by accident. If you do just reboot by power cycling.

Your Startup Config should be unchanged, but you need to be very careful what you do in rommon mode it is easy to blat stuff.

Any changes you make once you get into the command (enable) mode should be saved by
copy running-config startup-config

Any problems just let me know.

good feed back would be much appreciated.

Carrie

Dec 05, 2008 | Computers & Internet

1 Answer

Cisco router 857


hey you are saying that you want to configure the router,, but rommon mode is for breaking the password....do u forget the password of the router......can you explain why u need to log in through rommon mode

Nov 30, 2008 | Cisco 857W (882658019555) Router

1 Answer

Cisco 1721 router problem


Does the router boot to rommon mode everytime you turn it on?

There are two reasons why the router could be booting to rommon mode

1. There isn't a valid ios image loaded in flash memory
2. The configuration register is set to a number that ends with '0'

Change the configuration register setting to a number that ends in '2'. (i.e. 0x2402)

You do this with the command: confreg 0x2402 <hit enter key> (in rommon mode)

Reboot the router and it will first search for boot system commands in the startup config, if none found it will boot to the first valid ios image in flash memory.

If there isn't a valid ios image in flash memory, the router will continue to boot to rommon.

Apr 12, 2008 | Computers & Internet

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