Cisco IPS-4255-K9 Installation Guide - Page 301
External Product Interfaces Troubleshooting Tips, Troubleshooting the Appliance
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Chapter A Troubleshooting Troubleshooting the Appliance For More Information • For more information on external product interfaces, refer to Configuring External Product Interfaces. • For more information on working with OS maps and identifications, refer to Adding, Editing, Deleting, and Moving Configured OS Maps and Adding, Editing, Deleting, and Moving Configured OS Maps. • For the procedure for adding trusted hosts, refer to Adding TLS Trusted Hosts. External Product Interfaces Troubleshooting Tips To troubleshoot external product interfaces, check the following: • Make sure the interface is active by checking the output from the show statistics external-product-interface command in the CLI, or choose Monitoring > Sensor Monitoring > Support Information > Statistics in IDM and check the Interface state line in the response, or choose Configuration > sensor_name > Sensor Monitoring > Support Information > Statistics in IME, and check the Interface state line in the response. • Make sure you have added the CSA MC IP address to the trusted hosts. If you forgot to add it, add it, wait a few minutes and then check again. • Confirm subscription login information by opening and closing a subscription on CSA MC using the browser. • Check Event Store for CSA MC subscription errors. For More Information • For the procedure for adding trusted hosts, refer to Adding TLS Trusted Hosts. • For the procedure for displaying events, refer to Displaying Events. Troubleshooting the Appliance This section contains information to troubleshoot the appliance. It contains the following topics: • Hardware Bypass and Link Changes and Drops, page A-24 • Troubleshooting Loose Connections, page A-24 • Analysis Engine is Busy, page A-25 • Connecting the IPS 4240 to a Cisco 7200 Series Router, page A-25 • Communication Problems, page A-26 • SensorApp and Alerting, page A-30 • Blocking, page A-37 • Logging, page A-46 • TCP Reset Not Occurring for a Signature, page A-52 • Software Upgrades, page A-53 OL-18504-01 Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.0 A-23