Question about Cisco (1841) Router (cisco1841)

Open Question

Need to load ios software in a 2800 cisco router flash is blank no data

2800 cisco router IOS is corrupted after connecting to the router i get scii characters.

Posted by Anonymous on

Ad

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
  • 7 Answers

SOURCE: Problem in IOS loading in 1841 router

Hi managobinda,

Try booting from a usb flash:

http://www.cisco.com/en/US/docs/routers/access/1800/1841/software/configuration/guide/b_rommon_ps5853_TSD_Products_Configuration_Guide_Chapter.html#wp1064046


** make sure that the image that you are loading is not corrupted

If still no good, try xmodem:

http://www.cisco.com/en/US/docs/routers/access/1800/1841/software/configuration/guide/b_rommon_ps5853_TSD_Products_Configuration_Guide_Chapter.html#wp1044991



Hope this helps.

Regards,

ex_ocsic-cat

Posted on Nov 11, 2008

Ad
  • 81 Answers

SOURCE: I have cisco 1841 router stuck at Rommon> only

what shows the following?

dir flash: If IOS is ok the follow the below step The router will guide you through changing the registry. You want to press y to chang the configuration. The only other change you need to make is the change to the console baud rate, set that to 7 (115200).

do you wish to change the configuration? y/n [n]: y
enable "diagnostic mode"? y/n [n]:
enable "use net in IP bcast address"? y/n [n]:
enable "load rom after netboot fails"? y/n [n]:
enable "use all zero broadcast"? y/n [n]:
disable "break/abort has effect"? y/n [n]:
enable "ignore system config info"? y/n [n]:
change console baud rate? y/n [n]: y
enter rate: 0 = 9600, 1 = 4800, 2 = 1200, 3 = 2400
4 = 19200, 5 = 38400, 6 = 57600, 7 = 115200 [0]: 7
change the boot characteristics? y/n [n]:

Configuration Summary
enabled are:
break/abort has effect
console baud: 115200
boot: the ROM Monitor

do you wish to change the configuration? y/n [n]:
You must reset or power cycle for new config to take effect.

rommon 2>

3. When you reset the router in your console window you will see characters that you cannot read. You have to stop the session and set your baud rate to 115200. This will let you increase the speed that you use to transfer the file.
4. At the rommon prompt enter xmodem -c {filename}
5. When prompted, enter y to continue
6. From your hyperterminal prompt, click on transfter then send file
7. Select the IOS image then change the protocol to xmodem via the dropdown box then click send.
8. After the IOS has been downloaded, change the boot order by using the confreg 0x2102 command.

Posted on Jan 01, 2010

  • 1 Answer

SOURCE: cisco 1841 reads, Compact flash not found.

Perhap, your Compactflash is not be formated before you insert it into the slot of the Router.

Posted on Jun 02, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

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)

Tip

Cisco 1841 Router, Hot Sales Product Cisco 1800 Business Router


The Cisco 1841 router is designed for secure data connectivity and provides significant additional value compared to prior generations of Cisco 1700 Series routers by offering more than a fivefold performance increase and integrated hardware-based encryption enabled by an optional Cisco IOS Software security image.<br /><br />The <a href="http://www.router-switch.com/cisco1841-p-97.html">Cisco 1841</a> dramatically increase interface card slot performance and density over the Cisco 1700 Series while maintaining support for more than 30 existing WAN interface cards (WICs) and multiplex trunk cards (voice/WICs [VWICs]-for data only on the Cisco 1841 router).<br /><br />The <a href="http://www.router-switch.com/cisco1841-p-97.html">Cisco 1841 router</a> offers embedded hardware-based encryption enabled by an optional Cisco IOS Software security image; further enhancement of VPN performance with an optional VPN acceleration module; an intrusion prevention system (IPS) and firewall functions; interfaces for a wide range of connectivity requirements, including support for optional integrated switch ports; plus sufficient performance and slot density for future network expansion and advanced applications as well as an integrated real-time clock.<br /><br />Cisco 1841 router Product Details<br />Product Description Cisco 1841 router<br />Device Type Router<br />Form Factor External - modular - 1U<br />Dimensions (WxDxH) 34.3 cm x 27.4 cm x 4.75 cm<br />RAM 128 MB (installed) / 384 MB (max) - SDRAM<br />Flash Memory 32 MB (installed) / 128 MB (max)<br />Data Link Protocol Ethernet, Fast Ethernet<br />Network / Transport Protocol IPSec<br />Remote Management Protocol SNMP<br />Digital Signaling Protocol ADSL over ISDN<br />Features Cisco IOS IP Broadband , firewall protection, 128-bit encryption, hardware encryption, VPN support, VLAN support, Intrusion Prevention System (IPS), 256-bit encryption<br />Power AC 120/230 V ( 50/60 Hz )<br />System Requirements Microsoft Windows 98 Second Edition<br /><br />P.S. If you would like a new sealed Cisco 1841, the competitive price offered at RouterSwitch.com is US$586.00 per. Visit Cisco 1841 to see more...<br /><br />Notes: Router-switch.com is a World's Leading <a href="http://www.router-switch.com/">Cisco Supplier</a>, founded in 2002. It sells new, used and refurbished Cisco network equipment including Cisco routers 800/1800/1900/2800/2900/3800/3900 series, Cisco switches, Cisco Firewalls Security, Cisco IP Phones VOIP, etc.<br /><br />

on Jul 07, 2011 | Computers & Internet

Tip

Popular Cisco 1900 Series Routers Including Cisco 1941/K9, Sepcial for Mother's...


Cisco 1900 router series including CISCO1941/K9, C1941-SEC-SRE/K9, CISCO1941-SEC/K9, CISCO1941W-A/K9, CISCO1941W-E/K9, etc. are designed for small office and small enterprise branch offices, delivering high-performance, highly secure connectivity with multiservice integration that can transform the workplace with a broad set of services, rich-media support, and operational excellence.

Key features of Cisco 1900 series in detials:High Perfomance: Cisco 1900 series routers offer significant performance improvements over previous-generation ISRs such as 1800 series.

Investment Protection: Cisco router 1900 Series reduces deployment costs and increases flexibility. The platform also offers investment protection with support for a majority of existing WICs and HWICs.
Services On-Demand: The Cisco 1900 Series Integrated Services Routers reduce total cost of ownership by decoupling the delivery of software from hardware on optional service modules. In addition, you receive a Universal IOS image capable of enabling all of Cisco's rich IOS features and allowing you to quickly deploy new services.

Energy Efficiency: The Cisco 1900 Series architecture incorporates higher-efficiency power supplies with intelligent power management.
Specifiction of Cisco Router 1900 series:* Embedded hardware-accelerated VPN encryption.* Secure collaborative communications with Group Encrypted Transport VPN, Dynamic Multipoint VPN, or Enhanced Easy VPN.* Integrated threat control using Cisco IOS Firewall, Cisco IOS Zone-Based Firewall, Cisco IOS IPS, and Cisco IOS Content Filtering.* Identity management that uses authentication, authorization, and accounting (AAA), and public key infrastructure.* 2 Integrated 10/100/1000 Ethernet ports.* 2 enhanced High-Speed WAN Interface Card slots that can host 2 single wide or 1 double wide and 1 single wide (e)HWIC.* Fully integrated power distribution to modules supporting 802.3af Power over Ethernet (PoE) and Cisco Enhanced PoE.

Overall, Cisco 1900 Series Routers offer unparalleled total cost of ownership savings and network agility through the intelligent integration of security, wireless, and application services.

After knowing more information about Cisco router 1900 series, it's nice choice for you to select one of Cisco 1900 series that meet yor need in net to net.Why not choose? More tips about Cisco products and other Cisco network equipments you can visit here: http://www.router-switch.com/Price-cisco-routers-cisco-router-1900-series_c16

on May 05, 2011 | Computers & Internet

1 Answer

1840 cisco router is not booting only cursor blinking not going ahead


HI,
It May be the problem with the IOS in the router Flash
  • Try hard reboot of the router If it is not soled proceed next.
  • while the router reboot press Pause button continuously, it will enter into the ROMMON mode.
  • using the Xmodem option upload the correct IOS, for refer Please refer the link
  • Please check the configuration Loading by confreg or config-register command and change into confreg 0x2142 to load from the Flash and reboot the router.

Jan 20, 2011 | Cisco (1841) Router (cisco1841)

1 Answer

Scramble on my cisco 1841


It sounds like the IOS is corrupt, and you will need to copy the IOS back to the router again. It could also be the flash memory that has gone faulty.

If you can get to any prompt on the router and you have a copy of the IOS, you can re-flash the IOS and see if that helps. If you can not telnet to the device you will need to connect via the console port, and ZModem or similar the image to the router.

May 02, 2010 | Cisco (1841) Router (cisco1841)

1 Answer

Cisco 1721 Router IOS


I can help you with the IOS you need, but Cisco does not list 12.3.x XC, they only have YZ, YG, XR, XK, XG for this router. Email me at thrca@thrca.com for more help.

Aug 30, 2009 | Cisco (WIC-4ESW) 4-Port Ethernet Switch...

1 Answer

Hi all. Now i'm lose IOS of cisco 2691. help me! and give me how to load IOS to Cisco 2691 by tftp. thanks alot


Recovering Cisco IOS Software imagesIf your Cisco router experiences difficulties and no longer contains avalid Cisco IOS software image in flash memory, you can download a newCisco IOS image using one of the following ROM monitor commands:
blank.gifxmodem—(AllCisco 2600 series routers) Use this command to copy a Cisco IOS imagefrom the console, if the computer attached to your console has aterminal emulator with Xmodem capability. See the "Copying an Image from the Console Using the xmodem Command" procedure.
note.gif Note blank.gifDownloadinga Cisco IOS image from a console is very slow. This procedure should beused only in an emergency and is not recommended for normal Cisco IOSimage upgrades.

For the fastest possible download from a console, set the console speed to 115200 bps by using the confreg ROM monitor command. See the "Configuration Register Commands" procedure.
blank.giftftpdnld—(ExceptCisco 2691) Use this command to copy a Cisco IOS image from a TFTPserver that is accessible through the FastEthernet 0/0, Ethernet 0/0,or Token Ring 0/0 port. See the "Copying an Image from a TFTP Server Using the tftpdnld Command" procedure.
note.gif Note blank.gifThetftpdnld command is not available on the Cisco 2691 router. Therecommended method for installing a Cisco IOS image on a Cisco 2691router is from a CompactFlash memory card loaded in the externalCompactFlash memory card slot. See the "Entering Boot Commands" procedure.

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

Mar 12, 2009 | Cisco 2691 Series IOS

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

Not finding what you are looking for?
Cisco (1841) Router (cisco1841) Logo

Related Topics:

25 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cisco Computers & Internet Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

Prashant M
Prashant M

Level 3 Expert

2260 Answers

Gareth Tomlinson
Gareth Tomlinson

Level 2 Expert

116 Answers

Are you a Cisco Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...