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C-20
Cisco Intrusion Prevention System CLI Sensor Configuration Guide for IPS 7.1
OL-19892-01
Appendix C Troubleshooting
Supported MIBs
• Persistent store is limited.
Virtualization has the following traffic capture requirements:
• The virtual sensor must receive traffic that has 802.1q headers (other than traffic on the native VLAN
of the capture port).
• The sensor must see both directions of traffic in the same VLAN group in the same virtual sensor
for any given sensor.
The following sensors support virtualization:
• ASA 5500 AIP SSM
• ASA 5500-X IPS SSP
• ASA 5585-X IPS SSP
• IPS 4240
• IPS 4255
• IPS 4260
• IPS 4270-20
• IPS 4345
• IPS 4360
• IPS 4510
• IPS 4520
Supported MIBs
To avoid problems with configuring SNMP, be aware of the MIBs that are supported on the sensor.
The following private MIBs are supported on the sensor:
• CISCO-CIDS-MIB
The CISCO-CIDS-MIB has been updated to include SNMP health data in IPS 7.1(3)E4 and later.
• CISCO-ENHANCED-MEMPOOL-MIB
• CISCO-ENTITY-ALARM-MIB
You can obtain these private Cisco MIBs under the heading SNMP v2 MIBs at this URL:
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml
Note MIB II is available on the sensor, but we do not support it. We know that some elements are not correct
(for example, the packet counts from the IF MIB on the sensing interfaces). While you can use elements
from MIB II, we do not guarantee that they all provide correct information. We fully support the other
listed MIBs and their output is correct.
Note CISCO-PROCESS-MIB is available on the sensor, but we do not support it. We know that some elements
are not available. While you can use elements from CISCO-PROCESS-MIB, we do not guarantee that
they all provide correct information. We fully support the other listed MIBs and their output is correct.