Cisco :: 1841 - Router Won't Boot Up

Feb 24, 2012

I have a problem with 1841 router - It wont't boot up and there is a message
 
Correcting primary nv_flash

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Cisco WAN :: Unable Boot Up 1841 Router

Jul 4, 2011

Getting message, cannot open "flash:" on 1841 evdo router, how do I reinstall flash? I am currently consoled into the router, the prompt is coming up as rommon 1>

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Cisco Infrastructure :: Can 1841 Router Boot From System Image From USB Disk

Jan 12, 2013

I have a cisco1841 router with 32M CF card installed.Now , i want boot a system image larger 32M from usbdisk.First  i insert the 128M usb flash disk to the 1841 router and format it, then i can see the device from dir command.Second copy the larger ios image from tftp to the usb disk and successed,i can see the image with " dir usbflash0:" command.Third  i use this command "boot system " ,but there is no selection of  "usbflash0: " Does the cisco 1841 router  boot the system image from usb disk when reboot the router.

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Cisco WAN :: 1841 Boot Failure

May 18, 2011

we have a problem with a Cisco 1841 router while booting. The router is loading the image from the CF card but gets stucked at this point:
 
This product contains cryptographic features and is subject to UnitedStates and local country laws governing import, export, transfer anduse. Delivery of Cisco cryptographic products does not implythird-party authority to import, export, distribute or use encryption.Importers, exporters, distributors and users are responsible forcompliance with U.S. and local country laws. By using this product youagree to comply with applicable laws and regulations. If you are unableto comply with U.S. and local laws, return this product immediately.
 
A summary of U.S. laws governing Cisco cryptographic products may be foundURL

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Cisco WAN :: 2851 And 1841 / Buffer Failures On Boot?

Oct 17, 2012

I have a 2851 and a 1841 both serving as hub routers in a GRE multipoint configuration.  They are both receiving buffer misses and failures on startup.  I will post the output of show buffers below:
 
LAB-HUB-RTR#show buffers
Buffer elements:
607 in free list (500 max allowed)
9071 hits, 0 misses, 618 created
 
Public buffer pools:

Small buffers, 104 bytes (total 71, permanent 50, peak 71 @ 00:11:33):
68 in free list (20 min, 150 max allowed)
7083 hits, 74 misses, 0 trims, 21 created
55 failures (0 no memory)

[code]....
 
I have tried increasing the small/medium buffers initial size and permanent size, however there is no change.  The buffer failures for small and medium buffers are always around this many every boot.I have also changed the IOS versions between 12.4.24(T4) to 15.1 with no luck in stopping the failures.

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Cisco :: 2621 Router In Boot Loop?

Jul 27, 2011

I have a 2621 router, because I want an image of about 21M, I upgraded as follows:

IOS = 32M
RAM = 64M
ROM VERSION = 12.2

However, when I power up my router, it goes into a boot loop, and I see the following messages:

NOT ENOUGH MEMORY IN THE SYSTEM TO RUN THIS IMAGE
***SYSTEM RECEIVED A SOFTWARE FORCED CRASH***

how to overcome this error, and successfully upgrade, so I could load my new image?

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Cisco Infrastructure :: 2851 Router Not Boot From CF

Nov 12, 2012

I recently obtained a 2851 and have been battling this issue for a week now. An odd set of circumstances happen with the bootstrap startup process. If the router has loss of power or when reloaded; it fails to read the CF card and boots to rommon. I can tftp an image to it (tftpdnld -r) and IOS CAN read the flash card along with any saved configuration.In fact once in IOS, I can wr mem and print the hardware details of the CF card. Once I reload the router it goes to rommon, fails to open the flash, then sits until i tftp the image back. When the router load IOS, it also loads the startup config.I don't think it's a problem with the CF card as IOS can read it. I've tried formatting the card from IOS and from my pc as FAT, FAT16, FAT32, and NTFS - it didn't make a different. I updated the ROMMON to allow for USB booting but haven't purchased a USB Drive yet for testing. The upgrade didn't resolve this issue either. It almost seems like a firmware problem with the EPROM.

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Cisco WAN :: C3945 Router ROMmon Boot

Feb 13, 2013

Cisco router 3945 when unpacked from the box and powered on , it was not able to find boot loader image and booted in ROMMON mode. tried to boot from the external flash and tftp but still not able to.
 
We replaced router chassis 2 times and both the times faced the same problem.

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Cisco WAN :: 2621XM Router Will Not Boot From IOS Image

Nov 27, 2011

I've got a 2621XM that has not been used for a while.Completely stripped of any modules and configuration files, the router will continually cycle the startup process without actually booting from the IOS.
 
The cycle displays the following :
 
System Bootstrap, Version 12.2(8r) [cmong 8r], RELEASE SOFTWARE (fc1)
Copyright (c) 2003 by cisco Systems, Inc.
 
program load complete, entry point: 0x80008000, size: 0x10034ec
 
What I've tried:
 
1) Downloading another IOS image (c2600-is-mz.123-20.bin) via Xmodem and running "confreg 0x2102" from the rommon. All that did is change the last message to "program load complete, entry point: 0x80008000, size: 0x10fa95c"
 
 2) Running the command "boot flash:c2600-is-mz.123-20.bin". If I enable the diagnostics via rommon, the cycle expands to:
  
System Bootstrap, Version 12.2(8r) [cmong 8r], RELEASE SOFTWARE (fc1)
Copyright (c) 2003 by cisco Systems, Inc.
 program load complete, entry point: 0x80008000, size: 0x10fa95c
 Testing lower main memory - data equals address
Testing lower main memory - checkerboard

[code]....
 
If it wasn't for the lack of error messages, I would assume it was a hardware issue.If the image was corrupted, I would expect a message indicating that the image couldn't be read.

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Belkin N+ Wireless Router Won't Boot?

Mar 11, 2011

I've had a Belkin N+ wireless router for about 5 months. I reset the router recently (using the reset option on the router itself) and now it doesn't boot up. The lights at the front flash as if its going through its boot sequence but it never stops. I left it for 2 hours while I went out and when I came back it was still going through the boot sequence.

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Cisco Infrastructure :: 2951 Router Boot Error?

Sep 24, 2012

I recently received these routers and after the first reboot I changed the user id and password so it does not lock out...After configuring my routers for installation, upon bootup I am getting this message scroll down my screen
 
monitor: command "

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Cisco WAN :: 851W Router Will Not Complete Boot Process

May 16, 2011

My 851W will not complete the boot up process, here is the output during bootup(c) of the Commercial Computer Software - RestrictedRights clause at FAR sec. 52.227-19 and subparagraph(c) (1) (ii) of the Rights in Technical Data and ComputerSoftware clause at DFARS sec. 252.227-7013.  Cisco IOS Software, C850 Software (C850-ADVSECURITYK9-M), Version 12.4(15)T14, RELEASE SOFTWARE (fc2)Technical Support: [URL] Copyright (c) 1986-2010 by Cisco Systems, Inc.Compiled Wed 18-Aug-10 02:37 by prod_rel_teamImage text-base: 0x8002007C, data-base: 0x814ECE54This product contains cryptographic features and is subject to UnitedStates and local country laws governing import, export, transfer anduse. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute or use encryption.Importers, exporters, distributors and users are responsible for compliance with U.S. and local country laws. By using this product you agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local laws, return this product immediately.

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Cisco WAN :: 7206VXR Router Taking 17 Minutes To Boot?

Jan 12, 2011

I've inherited a 7206VXR router and it takes very long to boot.  It outputs READonly ROMMON initialized to the console and 14 minutes later it continues the boot process.  After 17+ minutes the boot is complete with the correct full image. The processing engine I have is the NPE-G1 and I'm looking for an upgradeable ROMMON image or a reason why the boot is taking this long. 

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Cisco Switching/Routing :: 871 Would Router Boot Seeing 52MB

May 30, 2012

What would happen if I installed a 32MB (MEM870-32F=) flash upgrade card in to a Cisco 871 router that already had 28MB flash on-board already? Would the router boot seeing 52MB (the max this router can have) or would it fail completely since the combined total would be over 52MB?
 
I know you can get a 24MB upgrade card but they are quite expensive.

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Linksys BEFSR41 Router Disconnects On Boot?

Jan 20, 2011

I have a 2 computers connected to a Linksys BEFSR41 router which is connected to a Verizon Westell DSL/Cable modem. From time to time the Ethernet link between the modem and the router spontaneously disconnects. I can reconnect the link by going to the setup menu on the router with a browser @ 192.168.1.1 Sometimes I have to do an ipconfig/release and renew to fix the link. Sometimes I have to power cycle the PC and the modem and the router.Currently this disconnect problem has gotten much worse. It occurs about every 15-20 minutes while I'm connected to the net. It also occurs when either computer is booted or turned off (I see the link light on both the modem and the router flash red for a moment).

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Belkin N+ Wireless Modem Router Won't Boot?

Sep 8, 2012

We have owned a this router for nearly a year now, and recently it has been acting up.Today I added a static connection or something of the like for my Xbox, with the correct ip gateway and subnet mask. Since the restart it has never stopped cycling the boot sequence without end. The download lights cycle and the router light flashes constantly. And I am unable to connect to the router page at 192.168.2.1 So I cannot reset the router, the hardware reset button just momentarily pauses the endless booting process.

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Cisco Infrastructure :: Upgrade Boot ROM Version On 7200 Router?

Sep 26, 2011

How do I upgrade the boot rom version on the 7200 router?  I am running IOS Version 12.4(22)T and when I plug in the serial ds3 card in my router it keeps rebooting with a watch dog error ( see below).  Also, what version should I upgrade to?

Router#sh verCisco IOS Software, 7200 Software (C7200-SPSERVICESK9-M), Version 12.4(22)T, RELEASE SOFTWARE (fc1)Technical Support: [URL] Copyright (c) 1986-2008 by Cisco Systems, Inc.Compiled Fri 10-Oct-08 10:10 by prod_rel_team
ROM: System Bootstrap, Version 12.2(4r)B, RELEASE SOFTWARE (fc1)BOOTLDR: 7200 Software (C7200-BOOT-M), Version 12.0(13)S, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
Router uptime is 0 minutesSystem returned to ROM by power-onSystem image file is "sup-slot0:/c7200-spservicesk9-mz.124-22.T.bin"

[code]....

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Run An Avast Boot Time Scan And Now Won't Connect To Router?

Nov 21, 2011

When I look at the local area connection the status is acquiring network address and just sits there. When I try to repair, it states that windows couldn't finishing repairing because it can't renew my IP address.

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Linksys Cable / DSL :: WAG160N Router Doesn't Appear To Boot

Jan 28, 2013

Last night we had some pretty bad lightning and thunder and our Linksys WAG160N appears to have had a bit of a fright.As I was going round unplugging items in case of a hit (this was after a flash or two, relatively nearby), all the lights on the router were off except for the ethernet light (plugged into a Linksys homeplug adaptor). Now the router doesn't appear to boot. When powered on, the power light doesn't flash or anything to indicate booting up, all you get is the ethernet light (if connected) after a few seconds, but no activity. I'm presuming something has been fried or corrupted? I'm not sure if we did have a power spike either through the mains or phone line as all other equipment seems to be fine, but I'm wondering the the homeplug connection might of had something to do with it after reading a few posts from others on the subject.I've held in the reset button while starting and it doesn't appear to have done anything. I will try the 30/30/30 reset tonight.

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Linksys Wireless Router :: E1000 PXE Boot / Remote OS Install

Dec 15, 2011

I have an Acer Aspire 5517 with Windows 7 Home Premium connected wirelessly to a Linksys E1000 which is connected to a surfboard modem connected to Comcast cable internet.  I just picked up an HP Proliant DL360 server with no OS and no optical drive. It tries to PXE network boot when I turn it on. How do I use my Laptop to install a linux image via the network?I have read extensively about this subject for a couple of days now and jacked up my IP settings in my router as well as my network adapter a couple of times now. Everything is backed up and my original settings are written down. I have asked for advice from Microsoft and HP as well.

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Cisco 1841 Router - NAT Configuration?

Apr 8, 2011

I have 2 cisco 1841 routers the one is connected to my local network and the other is the stub router and it only has 2 fastethernet interfaces. fao/1 connected to the local network and fa0/0 connected to the internet and to the other router. How can i configure NAT on the fa0/0 which is sharing the internet and local network

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Cisco :: Use 1841 Router Instead Of 3845?

Apr 26, 2011

1841 & 3845 router. We send 30 GB data on 100 Mbps link. First time we use 3845 router for sending the data and 47 Min are required to complete the data, during this link utilization was 100%. After that we send same data through 1841 router & 46 Min are required for the same. Only difference in data transfer is CPU Utilization of 1841 router goes 30% & 5 % of 3845 router Can we use 1841 router instead of 3845 router ? .

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Cisco WAN :: 1841 - Many NAT In A Single Router

Nov 11, 2012

I have got a cisco 1841 router. I need to do many nat. I have got a lots of virtual interface on this router. How many nat inside and outside does it supports ? Can I do more than one nat insdie and outside in different virual interfaces on the same single router.

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Cisco WAN :: Changing MTU On 1841 Router?

Aug 28, 2011

A client was having some email issue and was requested to change the 1841's LAN and WAN interface MTU to 1400 bytes. i've used 'mtu' command but was rejected and got an error like to one attached. so i used 'ip mtu' instead to make the change.
 
What's the difference between the 2 commands and if this would achieve the said change. I've checked using the show interface it's still showing MTU of 1500 bytes.

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Cisco VPN :: GRE Tunnel Between 891 / K9 And 1841 Router

May 16, 2011

I m trying to make the vpn session using m GRE tunnel between cisco 891/k9 and 1841 router.. there is the fixed ip add with the 1841 router, and another one doesnt have the static ip from the ISP, In this case, im going to use  DMVPN, The problem is , after completing the configuration, the tunnel inteface of the 1841 router will be seen like this.
 
-status: reset
-protocol: down

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Cisco VPN :: AnyConnect With 1841 Router

Mar 31, 2012

I want to connect my office network through anyconnect software and want to have the access of the whole network at my office, so that I can feel that I am at office. I have got 1841 router at my office. Is it possible to do VPN with anyconnect on 1841 router. Which IOS is required for SSL vpn ?

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Cisco WAN :: 1841 Router IOS Upgrade

Dec 2, 2012

We have 1841 router (Cisco IOS Software, 1841 Software (C1841-ADVSECURITYK9-M), Version 12.4(9)T1, RELEASE SOFTWARE (fc2)), currently the router up and running on "c1841-advsecurityk9-mz.124-9.T1.bin" and when we try to upgrade the IOS with "c1841-advsecurityk9-mz.124-24.T7.bin" its not taking the new IOS. [code]

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Cisco WAN :: Why 1841 Router Can't Enter IOS

Feb 13, 2011

when I start the router , I can't enter the IOS , and it enther the ROMMON mode , the error display probably is : the flash is invalid.I want to import an new IOS into the flash, but it says the space is not enough.how I confirm the flash is broken?It's any other ways to solve this problem except to change the flash?

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Cisco VPN :: How To Configure On Router 1841

Dec 24, 2012

setup a vpn server cisco.
 
device cisco router 1841 [URL]

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Cisco WAN :: 1841 BPR With Router And Firewall

Oct 20, 2012

In my company, we have two Internet connections, one for VPN and the other for emails and browsing. I have Cisco 1841 router with dual ADSL links, and also it's conntected to ASA and the other PIX. through one physical interface (vlan 1and vlan 2). The PIX firewall is connected to users, and the ASA is for VPN only.How can I seperate the traffic is going for emails and browsing and the vpn traffic. I have got to the point, that the router is configured for both ADSL connections, and I also configured the access-list and route-map in the router, the thing is when both ADSL configured together none of them works.

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Cisco WAN :: WAN Failover In Router 1841

Jun 30, 2011

i am very new for WAN failover configuration so how to configure cisco router 1841 with two WAN link.

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Cisco VPN :: 1841 Router - IOS VPN Capable

Aug 24, 2011

I have a 1841 Router running C1841-ADVIPSERVICESK9-M ver 12.4(12), is this IOS VPN capable, if not what IOS would I need to run a VPN?

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Cisco WAN :: 1841 Router Is Not Responding?

Mar 18, 2011

I have a Cisco 1841 router equipped with a serial interface and an ISDN BRI interface installed.The router has stopped suddenly responding and no display is beig obtained when trying to access the router through the console port.I have check the router LEDs and they display the following:
 
SYS PWR - It is showing solid green which means the router is receiving power, and the internal power supply is functional. It is not blinking green as is normally the case when the router is rebooted. 

SYS ACT - It is showing solid green. It should normally be blinking green showing that the system is actively transferring packets and monitoring internal activity. CF - It is showing solid green. It should normally be off indicating that the CompactFlash memory card is not being accessed or be blinking green showing that the CompactFlash memory card is being accessed. 

I have even replaced the CompactFlash memory with another one and removed the two WICs installed but the router still fails to initialise properly and respond through the console terminal program. how the router can be further troubleshooted or if it can be repaired?

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