Wednesday, July 30, 2014

Using a USB drive with a cisco ISR

In this blog we will demo how to use a usb thumb drive with a ISR3825 running;

Cisco IOS Software, 3800 Software (C3825-SPSERVICESK9-M), Version 12.4(15)T5, RELEASE SOFTWARE (fc4)
Technical Support:
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Wed 30-Apr-08 19:37 by prod_rel_team

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

Using a USB drive as a file storage can come in handy when you need to;

1: back up the existing  images or running-config & in a rush or hurry

2: need to transfer a image from one router to anothe and you don't have a tftp server program

3: or you only have console access-only and no network access

Okay 1st,

You need to plug in  your USB drive device. If the device is not recognized, you will see an error in your logs;

Next, you will need to  format the  device if the above presents. I found some  devices like my patriot 8gb memory stick will not format cleanly and presents errors.

( patriot stick with error after format )

( a usb tick of unknown origin from the DDoS vendor Prolexic )

Now that the device is format, you can use it like any ole flash ;)

This makes for a simple  storage that's cheap and easy to use.

 Ken Felix
 Freelance Network & Security Engineer
 kfelix -a--t- socpuppets ---d--o--t--- com

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