Release Notes

Release Notes for Cisco Intrusion Prevention System 5.1(7)E1

OL-8492-01

Upgrading to Cisco IPS 5.1(7)E1

• After you upgrade from 4.x to 5.0, you cannot downgrade. If you want to return to the previous

version, you must reimage and then copy the backup configuration to the reimaged sensor. You

cannot downgrade from 5.1(7)E1 to 5.0.

• IDS MC cannot manage sensors that have been upgraded to 5.x until the IDS MC 2.1 release.

For More Information

• For the procedure for changing the status of signatures, refer to Configuring the Status of Signatures.

• For the procedure for obtaining and installing the license, see Licensing the Sensor, page 26.

• For the procedure for reimaging sensor, refer to Upgrading, Downgrading, and Installing System

Images.

• For the procedure for copying the backup configuration to a reimaged sensor, see Copying and

Restoring the Configuration File Using a Remote Server, page 7.

Upgrading to 5.1(7)E1

To upgrade the sensor, follow these steps:

Step 1 Download the upgrade file (IPS-K9-5.1-7-E1.pkg) to an FTP, SCP, HTTP, or HTTPS server that is

accessible from your sensor.

Note If you use FTP or SCP protocol, you are prompted for a password. If you use SCP protocol, you

must add the remote host to the SSH known hosts list.

Note If you use HTTPS, the remote host must be a TLS trusted host.

Caution You must log in to Cisco.com using an account with cryptographic privileges to download software. The

first time you download software on Cisco.com, you receive instructions for setting up an account with

cryptographic privileges.

Caution Do not change the filename. You must preserve the original filename for the sensor to accept the update.

Step 2 Log in to the CLI using an account with Administrator privileges.

Step 3 Upgrade the sensor:

sensor# configure terminal

sensor(config)# upgrade scp://tester@10.1.1.1//upgrade/IPS-K9-5.1-7-E1.pkg

Enter password: ********

Re-enter password: ********