Cisco Cisco IPS 4255 Sensor

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Release Notes for Cisco Intrusion Prevention System 7.0(2)E4
OL-21671-01
  Before Upgrading to Cisco IPS 7.0(2)E4
For More Information
For the procedure for adding trusted hosts, for the CLI refer to 
, for the IDM 
refer to 
, and for the IME refer to 
Obtaining Software on Cisco.com
You can find major and minor updates, service packs, signature and signature engine updates, system 
and recovery files, firmware upgrades, and Readmes on the Download Software site on Cisco.com. 
Signature updates are posted to Cisco.com approximately every week, more often if needed. Service 
packs are posted to Cisco.com as needed. Major and minor updates are also posted periodically. Check 
Cisco.com regularly for the latest IPS software.
You must have an account with cryptographic access before you can download software. You set this 
account up the first time you download IPS software from the Download Software site. You can sign up 
for IPS Alert Bulletins to receive information on the latest software releases.
Note
You must be logged in to Cisco.com to download software. You must have an active IPS maintenance 
contract and a Cisco.com password to download software. You must have a sensor license to apply 
signature updates. 
Caution
The BIOS on Cisco IPS sensors is specific to Cisco 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 IPS sensors voids the warranty. 
Downloading IPS Software
To download software on Cisco.com, follow these steps:
Step 1
Log in to 
.
Step 2
From the Support drop-down menu, choose Download Software.
Step 3
Under Select a Software Product Category, choose Security Software.
Step 4
Choose Intrusion Prevention System (IPS).
Step 5
Enter your username and password.
Step 6
In the Download Software window, choose IPS Appliances > Cisco Intrusion Prevention System and 
then click the version you want to download.
Note
You must have an IPS subscription service license to download software. 
Step 7
Click the type of software file you need. The available files appear in a list in the right side of the 
window. You can sort by file name, file size, memory, and release date. And you can access the Release 
Notes and other product documentation. 
Step 8
Click the file you want to download. The file details appear.
Step 9
Verify that it is the correct file, and click Download.