Cisco IPS 7.1 Installation Guide Page 251

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D-11
Cisco Intrusion Prevention System Appliance Hardware Installation Guide for IPS 7.1
OL-24002-01
Appendix D Upgrading, Downgrading, and Installing System Images
Downgrading the Sensor
user-name: tester
password: <hidden>
file-copy-protocol: ftp default: scp
-----------------------------------------------
sensor(config-hos-ena)#
Step 8 Exit automatic upgrade submode.
sensor(config-hos-ena)# exit
sensor(config-hos)# exit
Apply Changes:?[yes]:
Step 9 Press Enter to apply the changes or type no to discard them.
For More Information
For a list of supported FTP and HTTP/HTTPS servers, see Supported FTP and HTTP/HTTPS
Servers, page D-3.
For the procedure for adding a remote host to the trusted hosts list, for IDM refer to Defining Known
Hosts Keys, for IME refer to Defining Known Host Keys, and for the CLI, refer to Adding Hosts to
the SSH Known Hosts List.
Downgrading the Sensor
Caution You cannot use the downgrade command to revert to a previous major or minor version, for example,
from Cisco IPS 7.1 to 7.0. You can only use the downgrade command to downgrade from the latest
signature update or signature engine update. To revert to 7.0, you must reimage the sensor.
Note You cannot downgrade the sensor using the recovery partition. To downgrade to an earlier version, you
must install the appropriate system image file (.img file).
Use the downgrade command to remove the last applied signature upgrade or signature engine upgrade
from the sensor.
To remove the last applied signature update or signature engine update from the sensor, follow these
steps:
Step 1 Log in to the sensor using an account with administrator privileges.
Step 2 Enter global configuration mode.
sensor# configure terminal
Step 3 If there is no recently applied service pack or signature update, the downgrade command is not
available.
sensor(config)# downgrade
No downgrade available.
sensor(config)#
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