Cisco Cisco IPS 4255 Sensor

sensor(config-hos)#

To troubleshoot password recovery, pay attention to the following:

You cannot determine whether password recovery has been disabled in the sensor configuration 
from the ROMMON prompt, GRUB menu, switch CLI, or router CLI. If password recovery is 
attempted, it always appears to succeed. If it has been disabled, the password is not reset to cisco. 
The only option is to reimage the sensor.

You can disable password recovery in the host configuration. For the platforms that use external 
mechanisms, such as the AIM IPS and NME IPS bootloader, ROMMON, and the maintenance 
partition for the IDSM2, although you can run commands to clear the password, if password 
recovery is disabled in the IPS, the IPS detects that password recovery is not allowed and rejects the 
external request.

To check the state of password recovery, use the show settings | include password command. 

When performing password recovery on the IDSM2, you see the following message: 

Upgrading 

will wipe out the contents on the storage media

. You can ignore this message. Only the 

password is reset when you use the specified password recovery image.

For more information on reimaging sensors, refer to 

For the procedure for disabling password recovery, see 

.

For the procedure for verifying the state of password recovery, see 

The following known issues have been resolved in the 7.0(4)E4 release:

CSCta45869—Enhance SMB-A Engine Functionality

CSCta96144—sensorApp terminates with core in updateTime (version 7.x)

CSCtb19915—Possible Reassembly Problem with SMB-Advanced Engine

CSCtb39179—SensorApp fails in TcpRootNode::expireNow()

CSCtg73897—SendAckLimiter: repair ReportInterval issue and improve stats collection

CSCtf04660—IPS: crash in Anomaly Detection getLearnedKnowledgeBase

CSCtg22175—fast retransmit ACK swaps mac address for multicast traffic

CSCtf78755—Too many event action filters corrupt rules0.xml and causes failure

CSCsy93579—SensorApp becomes memory critical over time.

CSCtg86008—Error message after running “show tech-support” or “cidDump”

CSCsz19556—7280.0 does not reliably alert