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C-63
Cisco Intrusion Prevention System CLI Sensor Configuration Guide for IPS 7.1
OL-19892-01
Appendix C Troubleshooting
Troubleshooting the ASA 5500 AIP SSM
Slot-1 161> Platform ASA-SSM-10
Slot-1 162> GigabitEthernet0/0
Slot-1 163> Link is UP
Slot-1 164> MAC Address: 000b.fcf8.0176
Slot-1 165> ROMMON Variable Settings:
Slot-1 166> ADDRESS=10.89.150.227
Slot-1 167> SERVER=10.89.146.1
Slot-1 168> GATEWAY=10.89.149.254
Slot-1 169> PORT=GigabitEthernet0/0
Slot-1 170> VLAN=untagged
Slot-1 171> IMAGE=IPS-SSM-K9-sys-1.1-a-5.1-0.1.img
Slot-1 172> CONFIG=
Slot-1 173> LINKTIMEOUT=20
Slot-1 174> PKTTIMEOUT=4
Slot-1 175> RETRY=20
Slot-1 176> tftp IPS-SSM-K9-sys-1.1-a-5.1-0.1.img@10.89.146.1 via 10.89.149.254
Failover Scenarios
The following failover scenarios apply to the ASA in the event of configuration changes,
signature/signature engine updates, service packs, and SensorApp crashes on the ASA 5500 AIP SSM.
Single ASA in Fail-Open Mode
• If the ASA is configured in fail-open mode for the ASA 5500 AIP SSM, and the
ASA 5500 AIP SSM 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 5500 AIP SSM, and the
ASA 5500 AIP SSM experiences a SensorApp crash or a service pack upgrade, traffic is passed
through the ASA without being inspected.
Single ASA in Fail-Close Mode
• If the ASA is configured in fail-close mode for the ASA 5500 AIP SSM, and the
ASA 5500 AIP SSM 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 5500 AIP SSM, and the
ASA 5500 AIP SSM experiences a SensorApp crash or a service pack upgrade, traffic is stopped
from passing through the ASA.
Two ASAs in Fail-Open Mode
• If the ASAs are configured in fail-open mode and if the ASA 5500 AIP SSM 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 5500 AIP SSM on the active ASA
experiences a SensorApp crash or a service pack upgrade, failover is triggered and traffic passes
through the ASA 5500 AIP SSM that was previously the standby module.
Two ASAs in Fail-Close Mode
• If the ASAs are configured in fail-close mode, and if the ASA 5500 AIP SSM 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.