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Cisco 2811 backup & restore configuration issues

Posted on 2010-09-13
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Last Modified: 2012-05-10
Cisco 2811

I just purchased a backup refurbished Cisco 2811. It;s purpose is to be there in case my Primary 2811 fails.
I took it out of the box and everything looks good. I popped in two DSU card that are identical to my primary 2811.  Everything is the same, Model, cards, all of it. Since it is a backup, it needs the exact same config as the primary so we can just insert cables and power on.

So I made a backup of my current config on the primary:
Router#copy running-config flash:working0910.cfg

Then I took the flash card and put it in the backup 2811 and ran:
Router#copy flash:working0910.cfg startup-config

it asked for connfirmation and as successful.
I reloaded.

The config didn't stick, doing a Router#show running-config I get the default configuration.

So I figured I did something wrong.
I tried again, this time using the startup
back on the primary I ran:
Router#copy startup-config flash:working0910.cfg

Then I took the flash card and put it in the backup 2811 and ran:
Router#copy flash:working0910.cfg startup-config

Once again Router#show running-config I get the default configuration.

o I tried copying from Terminal window to terminal window.
I captured the text from a show running-config and pasted it into the configure console.
I then ran a show running-config on the backup and all the settings were proper.
So I then did a copy running-config startup-config

Reloaded and back to default.

I have tried numerous combinations and upon reboot it always comes back to defaults.

HELP!!
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Question by:EGormly
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by:rfc1180
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I suspect something is up with the configuration register:

can you post show version?

you might need to change the register to something to 0x2102

config-register 0x2102
exit
wr mem

here is more information:

http://www.cisco.com/en/US/products/hw/routers/ps133/products_tech_note09186a008022493f.shtml

Billy
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Author Comment

by:EGormly
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show version:


Cisco IOS Software, 2800 Software (C2800NM-IPBASE-M), Version 12.4(3i), RELEASE
SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Wed 28-Nov-07 21:09 by stshen

ROM: System Bootstrap, Version 12.3(8r)T7, RELEASE SOFTWARE (fc1)

Router uptime is 51 minutes
System returned to ROM by reload at 15:18:55 UTC Mon Sep 13 2010
System image file is "flash:c2800nm-ipbase-mz.124-3i.bin"

Cisco 2811 (revision 53.51) with 776192K/10240K bytes of memory.
Processor board ID FCZ0945739Y
2 FastEthernet interfaces
2 Serial interfaces
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
250880K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2142
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rfc1180 earned 500 total points
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yeah, you will need to reset the config-register:


boot the router, login run these commands:

enable
conf t
config-register 0x2102
exit
wr mem

Billy
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Author Comment

by:EGormly
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Thank you! It now loads properly after a reboot.

Before I close this question can I ask why this might have happened?
Is there anything I should be on the lookout for?

I am concerned because it is a backup.
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Expert Comment

by:rfc1180
Comment Utility
>I am concerned because it is a backup.
I would not be concerned, as it is a refurbished product, the team that refurbishes the product probably forgot to change the config-register back.

Billy
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Author Comment

by:EGormly
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Thank you!
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Author Closing Comment

by:EGormly
Comment Utility
Excellent! Saved me the pain of going through sending it back. Perfect solution.
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