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Cisco Integrated Services Router Hardware Installation Guide
OL-27407-01
Chapter1 Product Overview Cisco C891 Series ISRs
•Feature Summary
Kensington Lock
A Kensington security slot is located on the router back panel. To secure the router to a desktop or other
surface, use the Kensington lockdown equipment.
Reset Button
The Reset button is used to restore the router to the factory default configurationor to load a custom
configuration file.
There are two different ways to do this:
1. by pressing the Reset button within 5 seconds of powering up the router; or
2. by pressing the Reset button for 5 seconds while running IOS.
Note If you execute a CLI reboot command while the embedded wireless AP is running Cisco Unified IOS
software, the router reboots, but the AP continues running. Clients with Cisco Unified IOS software are
controlled by a wireless LAN controller (WLC) and can be reset only by the controller.

Cisco 860VAE Routers—Custom Configuration File

On Cisco 860VAE routers, the reset button can be used to load a custom configurati on file without ha ving
to use the CLI. The configuration file can be located on an external USB flash drive or on the router's
compact flash.
The custom configuration file must be named one of the following:
•customer-config
•SN-customer-config
where “SN” is the unique hardware serial number.
When the system attempts to load a custom configuration file, configuration files on a USB flash drive
have priority over configuration files on the router's flash drive and the “SN-customer-conf ig” f il e name
has priority over the “customer-config” file name. The priority for loading a configuration file is as
follows:
1. USB flash0: SN-customer-config
2. USB flash0: customer-config
3. Router flash: SN-customer-config
4. Router flash: customer-config
If the router does not find a valid custom configuration file, the system aborts the process.
To reset the router to the factory default configuration, follow these steps:
Step1 Verify that IOS is running correctly by checking that the system status LED is on.