Filter
Top Products
C-82
Cisco Intrusion Prevention System CLI Sensor Configuration Guide for IPS 7.1
OL-19892-01
Appendix C Troubleshooting
Troubleshooting the ASA 5585-X IPS SSP
Slot-1 173> LINKTIMEOUT=20
Slot-1 174> PKTTIMEOUT=4
Slot-1 175> RETRY=20
Slot-1 176> tftp IPS-SSP_10-K9-sys-1.1-a-7.1-0.1.img@192.0.2.15 via 192.0.2.254
Failover Scenarios
The following failover scenarios apply to the ASA 5585-X in the event of configuration changes,
signature/signature engine updates, service packs, and SensorApp crashes on the ASA 5585-X IPS SSP.
Single ASA 5585-X in Fail-Open Mode
• If the ASA is configured in fail-open mode for the ASA 5585-X IPS SSP, and the
ASA 5585-X IPS SSP experiences a configuration change or signature/signature engine update,
traffic is passed through the ASA without being inspected.
• If the ASA is configured in fail-open mode for the ASA 5585-X IPS SSP, and the
ASA 5585-X IPS SSP experiences a SensorApp crash or a service pack upgrade, traffic is passed
through the ASA without being inspected.
Single ASA 5585-X in Fail-Close Mode
• If the ASA is configured in fail-close mode for the ASA 5585-X IPS SSP, and the
ASA 5585-X IPS SSP experiences a configuration change or a signature/signature engine update,
traffic is stopped from passing through the ASA.
• If the ASA is configured in fail-close mode for the ASA 5585-X IPS SSP, and the
ASA 5585-X IPS SSP experiences a SensorApp crash or a service pack upgrade, traffic is stopped
from passing through the ASA.
Two ASA 5585-Xs in Fail-Open Mode
• If the ASAs are configured in fail-open mode and if the ASA 5585-X IPS SSP on the active ASA
experiences a configuration change or a signature/signature engine update, traffic is still passed
through the active ASA without being inspected. Failover is not triggered.
• If the ASAs are configured in fail-open mode, and if the ASA 5585-X IPS SSP on the active ASA
experiences a SensorApp crash or a service pack upgrade, failover is triggered and traffic passes
through the ASA 5585-X IPS SSP that was previously the standby ASA 5585-X IPS SSP.
Two ASA 5585-Xs in Fail-Close Mode
• If the ASAs are configured in fail-close mode, and if the ASA 5585-X IPS SSP on the active ASA
experiences a configuration change or a signature/signature engine update, traffic is stopped from
passing through the active ASA. No failover is triggered.
• If the ASAs are configured in fail-close mode, and if the ASA 5585-X IPS SSP on the active ASA
experiences a SensorApp crash or a service pack upgrade, failover is triggered and traffic passes
through the ASA 5585-X IPS SSP that was previously the standby for the ASA 5585-X IPS SSP.
Configuration Examples
Use the following configuration for the primary ASA:
interface GigabitEthernet0/7
description LAN Failover Interface
failover
failover lan unit primary
failover lan interface folink GigabitEthernet0/7