Upgrading IOS on Cisco 3700 routers on-board memory

Unanswered Question
Feb 19th, 2009

Hi,

I have got a number of 3700 routers without compact flash memory.

I wish to install IOS on the On-board DRAM. Can someone guide me on how to install IOS on the on-board memory and not the flash card?

Thank you.

I have this problem too.
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Leo Laohoo Thu, 02/19/2009 - 15:29

The 3700 series router, like the 2691, always comes with an empty compact flash bank (called slot0:). It also has an internal compact flash bank (called flash:).

Boot up the router, if it works, then the flash: is present and you're good to go.

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