Cisco Cisco IPS 4255 Sensor

The BIOS on Cisco IDS/IPS sensors is specific to Cisco IDS/IPS sensors and must only be upgraded 
under instructions from Cisco with BIOS files obtained from the Cisco website. Installing a non-Cisco 
or third-party BIOS on Cisco IDS/IPS sensors voids the warranty. For more information on how to obtain 
instructions and BIOS files from the Cisco website, see 

.

The following files are part of Cisco IPS 6.0(3)E.1:

Service Pack Files

IPS-K9-6.0-3-E.1.pkg 

IPS-CS-MGR-K9-6.0-3-E1.zip

System Image Files

IPS-4215-K9-sys-1.1-a-6.0-3-E.1.img

IPS-4240-K9-sys-1.1-a-6.0-3-E.1.img

IPS-4255-K9-sys-1.1-a-6.0-3-E.1.img

IPS-4260-K9-sys-1.1-a-6.0-3-E.1.img

IPS-NM-CIDS-K9-sys-1.1-a-6.0-3-E.1.img

WS-SVC-IDSM2-K9-sys-1.1-a-6.0-3-E.1.bin.gz

IPS-SSM-K9-sys-1.1-a-6.0-3-E.1.img

Recovery Image Files

IPS-K9-r-1.1-a-6.0-3-E.1.pkg

Readme File

IPS-6.0-3-E.1.readme.txt

ISO Image

IPS-K9-cd-1.1-a-6.0-3-E.1.iso

The ISO Image is for the IDS 4235 and IDS 4250 series sensors only. 

For the procedure for obtaining these files on Cisco.com, see 

For the procedure for installing service pack files, see 

.

For the procedure for installing system image files, refer to 

For the procedure for installing recovery image files, refer to 

.

For the procedure for installing IOS image files, see 

.