Cisco IPS 7.1 Installation Guide download pdf (Page 229)

C-5

Cisco Intrusion Prevention System Appliance Hardware Installation Guide for IPS 7.1

OL-24002-01

Appendix C Obtaining Software

IPS Software Release Examples

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 C-3 illustrates what each part of the IPS software file represents for recovery and system image

filenames.

Figure C-3 IPS Software File Name for Recovery and System Image Files

IPS Software Release Examples

Table C-1 lists the Cisco IPS software release examples.

Table C-1 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

Release Target Frequency Identifier

Example

Version Example Filename

Signature update and

signature engine update

Weekly for signature

updates, as needed

for signature engine

updates

sig S552

IPS-identifier-sig-S552-req-E4.pkg

Service packs

Every three months — 7.1(2) IPS-identifier-K9-7.1-2-E4.pkg

Minor version update

Annually — 7.1(1) IPS-identifier-K9-7.1-2-E4.pkg

Major version update

Annually — 8.0(1) IPS-identifier-K9-8.0-1-E4.pkg

Patch release

As needed patch 7.2(1p1) IPS-identifier-K9-patch-7.2-1pl-E4.pkg

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