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Saving Running Config to NVRAM Cisco 1720

Posted on 2004-10-12
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Last Modified: 2008-01-09
Here is my problem.

I have a Cisco 1720 with 12.3 running on it. I changed out the 4 meg memory to 8 meg. Once I did this and I got the IOS on it and put my config on it everything works fine and has been for quite some time. That was until the power went out and the UPS took a dump, now I notice that anytime I power the router down I lose my config and I have to re-config the router. I have reconfiged it and did a copy run start so that it would copy the config to the startup-config so I know that part is good. I think some how my router doesnt know to look at the startup-config when it boots. Is there a way I can tell?
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Question by:cs1031
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tonyteri earned 250 total points
ID: 12293789
yes, show config-register, will show you which file the router is looking for to boot.

0x2102 through 0x210F means it is booting from NVRAM


To reset the trouter to boot from NVRAM, you would enter the following command

config t
config -register 0x2102.

Save with a copy running-config startup-config command and reboot.  This should work.

If not, reinstall the IOS and try again.

TT

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