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Cisco Remote IOS upgrade - Cisco Network Assistant

Posted on 2013-10-28
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Last Modified: 2013-10-29
I have a remote site (US to AUS) that I need to upgrade the IOS on a 3750 from ver 12 to 15 (one switch).

I have tried to use the Cisco Network Assistant to push the new software and it fails within a few seconds.  I thought about loading CNA on a computer there with the image and then push it locally.  When it gets to the point when it asks for a reload, would I be able to hit that across our ASA tunnel with a shell.  I am trying to keep access to the switch until the upgrade completes without setting up a local TFTP server, etc...

Any better method, or command line options that are best for remote upgrades.
Due to time zones they are out of the office when I am working with the switch.

Thanks in advance
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Question by:PostQ
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rauenpc earned 500 total points
ID: 39606893
If you can, I would just go CLI using the archive command and an FTP server.

archive download-sw /overwrite ftp://username:password@1.2.3.4/IOS-filename.tar

The above, which proper replacements for un/pw, IP, and filename, will upgrade the switch and NOT reload following the upgrade. On the CLI, you will get confirmation that the upgrade was completed or failed, and from there you can reload or figure out what went wrong.

This isn't the only way to do it, just my personal preference.
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by:PostQ
ID: 39608510
The no reload option looks like a good solution for working remote - thanks
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