Contents
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Cisco Intrusion Prevention System Appliance Hardware Installation Guide for IPS 7.1
OL-24002-01
Troubleshooting Loose Connections E-24
Analysis Engine is Busy E-24
Communication Problems E-25
Cannot Access the Sensor CLI Through Telnet or SSH E-25
Correcting a Misconfigured Access List E-27
Duplicate IP Address Shuts Interface Down E-28
The SensorApp and Alerting E-29
The SensorApp Is Not Running E-29
Physical Connectivity, SPAN, or VACL Port Issue E-31
Unable to See Alerts E-32
Sensor Not Seeing Packets E-34
Cleaning Up a Corrupted SensorApp Configuration E-35
Blocking E-36
Troubleshooting Blocking E-36
Verifying ARC is Running E-37
Verifying ARC Connections are Active E-38
Device Access Issues E-40
Verifying the Interfaces and Directions on the Network Device E-41
Blocking Not Occurring for a Signature E-42
Verifying the Master Blocking Sensor Configuration E-43
Logging E-45
Enabling Debug Logging E-45
Zone Names E-49
Directing cidLog Messages to SysLog E-50
TCP Reset Not Occurring for a Signature E-51
Software Upgrades E-52
Upgrading and Analysis Engine E-52
Which Updates to Apply and Their Prerequisites E-53
Issues With Automatic Update E-53
Updating a Sensor with the Update Stored on the Sensor E-54
Troubleshooting the IDM E-55
Cannot Launch IDM - Loading Java Applet Failed E-55
Cannot Launch the IDM-the Analysis Engine Busy E-56
The IDM, Remote Manager, or Sensing Interfaces Cannot Access the Sensor E-56
Signatures Not Producing Alerts E-57
Troubleshooting the IME E-57
Time Synchronization on the IME and the Sensor E-58
Not Supported Error Message E-58
Installation Error E-58
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