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Cisco Intrusion Prevention System CLI Sensor Configuration Guide for IPS 7.1
OL-19892-01
Chapter 21 Obtaining Software
IPS Software Versioning
Recovery and System Image Files
Recovery and system image files contain separate versions for the installer and the underlying
application. The installer version contains a major and minor version field. The major version is
incremented by one of any major changes to the image installer, for example, switching from .tar to rpm
or changing kernels. The minor version can be incremented by any one of the following:
• Minor change to the installer, for example, a user prompt added.
• Repackages require the installer minor version to be incremented by one if the image file must be
repackaged to address a defect or problem with the installer.
Figure 21-3 illustrates what each part of the IPS software file represents for recovery and system image
filenames.
Figure 21-3 IPS Software File Name for Recovery and System Image Files
IPS Software Release Examples
Table 21-1 lists the Cisco IPS software release examples.
333822
IPS-identifier-K9-[sys,r,]-x.y-a-*.img, pkg, or aip
Product line
Platform identifier
Strong cypto designator
Package type
Installer major version
Installer minor version
Application version designator
Application version
File extension
Table 21-1 Release Examples
Release Target Frequency Identifier
Example
Version Example Filename
Signature update and
signature engine
update
1
Weekly for signature
updates, as needed for
signature engine updates
sig S552
E4
IPS-identifier-sig-S552-req-E4.pkg
Service packs
2
Every three months — 7.1(2) IPS-identifier-K9-7.1-2-E4.pkg
Minor version update
3
Annually — 7.1(1) IPS-identifier-K9-7.1-2-E4.pkg
Major version update
4
Annually — 8.0(1) IPS-identifier-K9-8.0-1-E4.pkg
Patch release
5
As needed patch 7.2(1p1) IPS-identifier-K9-patch-7.2-1pl-E4.pkg
Recovery package
6
Annually or as needed r 1.1-7.2(1) IPS-identifier-K9-r-1.1-a-7.2-1-E4.pkg
System image
7
Annually sys Separate file
per sensor
platform
IPS-SSP_60-K9-sys-1.1-a-7.1-2-E4.img
IPS-4345-K9-sys-1.1-a-7.1-2-E4.img
IPS-SSP_5545-K9-sys-1.1-a-7.1-2-E4.aip
IPS-4510-K9-sys-1.1-a-7.1-4-E4.img