Cisco IPS 7.1 Installation Guide Page 248

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D-8
Cisco Intrusion Prevention System Appliance Hardware Installation Guide for IPS 7.1
OL-24002-01
Appendix D Upgrading, Downgrading, and Installing System Images
Configuring Automatic Upgrades
Understanding Automatic Upgrades
Caution In IPS 7.1(5)E4 and later the default value of the Cisco server IP address has been changed from
198.133.219.25 to 72.163.4.161 in the Auto Update URL configuration. If you have automatic update
configured on your sensor, you may need to update firewall rules to allow the sensor to connect to this
new IP address.
You can configure the sensor to look for new upgrade files in your upgrade directory automatically. For
example, several sensors can point to the same remote FTP server directory with different update
schedules, such as every 24 hours, or Monday, Wednesday, and Friday at 11:00 pm.
You specify the following information to schedule automatic upgrades:
Server IP address
Path of the directory on the file server where the sensor checks for upgrade files
File copy protocol (SCP or FTP)
Username and password
Upgrade schedule
You must download the software upgrade from Cisco.com and copy it to the upgrade directory before
the sensor can poll for automatic upgrades.
For More Information
For the procedure for locating software on Cisco.com, see Obtaining Cisco IPS Software, page C-1.
Automatically Upgrading the Sensor
Use the auto-upgrade-option enabled command in the service host submode to configure automatic
upgrades. The following options apply:
cisco-server—Enables automatic signature and engine updates from Cisco.com.
cisco-url—Specifies the Cisco server locater service. You do not need to change this unless the
www.cisco.com IP address changes.
default— Sets the value back to the system default setting.
directory— Specifies the directory where upgrade files are located on the file server. A leading ‘/’
indicates an absolute path.
file-copy-protocol— Specifies the file copy protocol used to download files from the file server.
The valid values are ftp or scp.
Note If you use SCP, you must use the ssh host-key command to add the server to the SSH known
hosts list so the sensor can communicate with it through SSH.
ip-address—Specifies the IP address of the file server.
password—Specifies the user password for Cisco server authentication.
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