Cisco Cisco IPS 4255 Sensor
10
Release Notes for Cisco Intrusion Prevention System 6.1(3)E3
OL-20114-01
Before Upgrading to Cisco IPS 6.1(3)E3
If you previously filled out the Encryption Software Export Distribution Authorization form, and read
and accepted the Cisco Systems Inc. Encryption Software Usage Handling and Distribution Policy, these
forms are not displayed again. The File Download dialog box appears.
and accepted the Cisco Systems Inc. Encryption Software Usage Handling and Distribution Policy, these
forms are not displayed again. The File Download dialog box appears.
Step 11
Open the file or save it to your computer.
Step 12
Follow the instructions in the Readme to install the update.
Note
Major and minor updates, service packs, recovery files, signature and signature engine updates
are the same for all sensors. System image files are unique per platform.
are the same for all sensors. System image files are unique per platform.
IPS Software Versioning
When you download IPS software images from Cisco.com, you should understand the versioning
scheme so that you know which files are base files, which are cumulative, and which are incremental.
scheme so that you know which files are base files, which are cumulative, and which are incremental.
Major Update
A major update contains new functionality or an architectural change in the product. For example, the
Cisco IPS 6.0 base version includes everything (except deprecated features) since the previous major
release (the minor update features, service pack fixes, and signature updates) plus any new changes.
Major update 6.0(1) requires 5.x. With each major update there are corresponding system and recovery
packages.
Cisco IPS 6.0 base version includes everything (except deprecated features) since the previous major
release (the minor update features, service pack fixes, and signature updates) plus any new changes.
Major update 6.0(1) requires 5.x. With each major update there are corresponding system and recovery
packages.
Note
The 6.0(1) major update is only used to upgrade 5.x sensors to 6.0(1). If you are reinstalling 6.0(1) on a
sensor that already has 6.0(1) installed, use the system image or recovery procedures rather than the
major update.
sensor that already has 6.0(1) installed, use the system image or recovery procedures rather than the
major update.
Minor Update
A minor update is incremental to the major version. Minor updates are also base versions for service
packs. The first minor update for 6.0 is 6.1(1). Minor updates are released for minor enhancements to
the product. Minor updates contain all previous minor features (except deprecated features), service pack
fixes, signature updates since the last major version, and the new minor features being released. You can
install the minor updates on the previous major or minor version (and often even on earlier versions).
The minimum supported version needed to upgrade to the newest minor version is listed in the Readme
that accompanies the minor update. With each minor update there are corresponding system and
recovery packages.
packs. The first minor update for 6.0 is 6.1(1). Minor updates are released for minor enhancements to
the product. Minor updates contain all previous minor features (except deprecated features), service pack
fixes, signature updates since the last major version, and the new minor features being released. You can
install the minor updates on the previous major or minor version (and often even on earlier versions).
The minimum supported version needed to upgrade to the newest minor version is listed in the Readme
that accompanies the minor update. With each minor update there are corresponding system and
recovery packages.
Service Pack
A service pack is 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. The minimum supported version needed to upgrade to the newest service pack
is listed in the Readme that accompanies the service pack. Service packs also include the latest engine
update. For example, if service pack 6.0(3) is released, and E3 is the latest engine level, the service pack
is released as 6.0(3)E3.
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. The minimum supported version needed to upgrade to the newest service pack
is listed in the Readme that accompanies the service pack. Service packs also include the latest engine
update. For example, if service pack 6.0(3) is released, and E3 is the latest engine level, the service pack
is released as 6.0(3)E3.