How to only use USB and RAM on a Cisco device

[P8834]

Hi

I have a fairly unusual question. I have a C1111X-8P router that I need to run directly from an USBdevice. So I can disable the internal flash.
So when I power off the unit and remove the USBdevice no traces of the configuration, IOS, VLAN, logs etc. is left in the router. Is this even possible?   

I want to disable all permanent storage internally in the device.    

[balaji.bandi]

Not that i am ware, instead you can Lock the device, if the stolen or hacked.

suggest to do hardening :

https://www.cisco.com/c/en/us/support/docs/ip/access-lists/13608-21.html

[Leo Laohoo]

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@P8834 wrote:

I want to disable all permanent storage internally in the device. 

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What is the use case for this unusual requirement?  

When a router is installed properly, it is very difficult to remove.  If the config, for instance, resides in a USB stick it can easily get swiped without anyone knowing.  

[P8834]

It is for a system that is mobile, and when you bring it with you on a plane I want to be able to have the USB with me in person and not with the luggage going through different scans and people on the airport. If it's not possible I have to bring the whole router with the carrie-on luggage.

So it would be really nice if it's possible to do what I described above.

[pieterh]

investigate if it is possible (and workable) to configure the router to

- load IOS from tftp-server (boot variable)
- after |IOS is loaded,  copy config from tftp to running-config

on your laptop run tftp a server for this,  do not save config to flash do not install IOS to flash

[Leo Laohoo]

Very unusual case but it can be done. 
Post the complete output to the command "sh boot".