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Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.1
OL-24002-01
Appendix E Troubleshooting
Troubleshooting the ASA 5500-X IPS SSP
Mod-ips 633> Starting CIDS:
Mod-ips 634> starting pid 1718, tty '/dev/ttyS0': '/sbin/getty -L ttyS0 9600 vt100'
The ASA 5500-X IPS SSP and the Normalizer Engine
The majority of the features in the Normalizer engine are not used on the ASA 5500-X IPS SSP, because
the ASA itself handles the normalization. Packets on the ASA IPS modules go through a special path in
the Normalizer that only reassembles fragments and puts packets in the right order for the TCP stream.
The Normalizer does not do any of the normalization that is done on an inline IPS appliance, because
that causes problems in the way the ASA handles the packets.
The following Normalizer engine signatures are not supported:
•
1300.0
•
1304.0
•
1305.0
•
1307.0
•
1308.0
•
1309.0
•
1311.0
•
1315.0
•
1316.0
•
1317.0
•
1330.0
•
1330.1
•
1330.2
•
1330.9
•
1330.10
•
1330.12
•
1330.14
•
1330.15
•
1330.16
•
1330.17
•
1330.18
For More Information
For detailed information about the Normalizer engine, see Normalizer Engine.