Appendix; Upgrading, Downgrading, And Installing System Images; System Image Notes And Caveats; Upgrades, Downgrades, And System Images - Cisco IPS 7.1 Installation Manual

Upgrading, Downgrading, and Installing System
Images

Contents

This chapter describes how to upgrade, downgrade, and install system images. It contains the following
sections:
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System Image Notes and Caveats

Pay attention to the following upgrade notes and caveats when upgrading your sensor:
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OL-24002-01
System Image Notes and Caveats, page D-1
Upgrades, Downgrades, and System Images, page D-2
Supported FTP and HTTP/HTTPS Servers, page D-3
Upgrading the Sensor, page D-3
Configuring Automatic Upgrades, page D-7
Downgrading the Sensor, page D-11
Recovering the Application Partition, page D-12
Installing System Images, page D-13
Anomaly detection has been disabled by default in IPS 7.1(2)E4 and later. If you did not configure
the operation mode manually before the upgrade, it defaults to inactive after you upgrade to IPS
7.1(2)E4 or later. If you configured the operation mode to detect, learn, or inactive, the tuned value
is preserved after the upgrade.
You must have a valid maintenance contract per sensor to download software upgrades from
Cisco.com.
You must be running IPS 7.1(1)E4 to upgrade to IPS 7.1(2)E4 or later.
This service pack automatically reboots the sensor to apply the changes. During reboot, inline
network traffic is disrupted.
You cannot uninstall IPS 7.1(x)E4. To revert to a previous version, you must reimage the sensor
using the appropriate system image file.
After you upgrade any IPS software on your sensor, you must restart the IDM to see the latest
software features.
Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.1
A P P E N D I X
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D-1