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Installing Cisco Intrusion Prevention System Appliances and Modules 5.0
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Chapter 10 Obtaining Software
IPS Software Versioning
Service packs are cumulative following a base version release (minor or major). Service packs are used
for the release of defect fixes with no new enhancements. Service packs contain all service pack fixes
since the last base version (minor or major) and the new defect fixes being released. Service packs
require the minor version.
Signature updates are cumulative and increment by one with each new release (for example, S145, S146,
S147). Signature updates include every signature since the initial signature release (S1) in addition to
the new signatures being released. Signature updates require the minimum version listed in the filename.
To install the most recent signature update, you must have the most recent minor version. Service packs
are dependent on the most recent minor version, which is dependent on the most recent major version.
Note
For a table listing the types of files with examples of filenames and corresponding software releases, see
5.x Software Release Examples, page 10-4
.
In addition there are system image files for the IDS-4215, IPS-4240, IPS-4255, NM-CIDS, IDSM-2,
AIP-SSM-10, and AIP-SSM-20, recovery partition files for all sensors, and a maintenance partition file
for IDSM-2:
•
System image files (IDS-4215, IPS-4240, IPS-4255 NM-CIDS, IDSM-2, AIP-SSM-10, and
AIP-SSM-20)—Full IPS application and recovery image used for reimaging an entire sensor.
•
Recovery partition image file—A recovery partition image file is a partition on the sensor that
contains a full IPS application image to be used for recovery.
•
Maintenance partition image file (IDSM-2 only)—A maintenance partition image file is used to
reimage the maintenance partition of IDSM-2. Maintenance partition files are released when new
major or minor versions of the maintenance partition are released. Maintenance partition image files
are not released for service packs to the maintenance partition. A service pack may be released to
address defects identified in existing maintenance partition images, but new maintenance partition
images are not produced for subsequently released service packs.
Note
The maintenance partition image file does not contain a signature designator.
5.x Software Release Examples
Table 10-1
lists platform-independent IDS 5.x software release examples. Refer to the readmes that
accompany the software files for detailed instructions on how to install the files. For instructions on how
to access these files on Cisco.com, see
Obtaining Cisco IPS Software, page 10-1
.
Table 10-1
Platform-Independent Release Examples
Release
Target Frequency
Identifier
Supported
Platform
Example File Name
Signature update
1
Weekly
sig
All
IPS-sig-S70-minreq-5.0-1.pkg
Service pack
2
Semi-annually
or as needed
sp
All
IPS-K9-sp-5.0-2.pkg
Minor version
3
Annually
min
All
IPS-K9-min-5.1-1.pkg
Major version
4
Annually
maj
All
IPS-K9-maj-5.0-1.pkg