When to Disable Anomaly Detection

Appendix E Troubleshooting

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.

If you have anomaly detection enabled and you have your sensor configured to see only one direction of traffic, you should disable anomaly detection. Otherwise, you will receive many alerts, because anomaly detection sees asymmetric traffic as having incomplete connections, that is, like worm scanners, and fires alerts.

To disable anomaly detection, follow these steps:

Step 1 Log in to the CLI using an account with administrator privileges.

Step 2 Enter analysis engine submode.

sensor# configure terminal

sensor(config)# service analysis-engine

sensor(config-ana)#

Step 3 Enter the virtual sensor name that contains the anomaly detection policy you want to disable.

sensor(config-ana)# virtual-sensor vs0

sensor(config-ana-vir)#

Step 4 Disable anomaly detection operational mode.

sensor(config-ana-vir)# anomaly-detectionsensor(config-ana-vir-ano)# operational-mode inactive sensor(config-ana-vir-ano)#

Step 5 Exit analysis engine submode.

sensor(config-ana-vir-ano)# exit sensor(config-ana-vir)# exit sensor(config-ana-)# exit Apply Changes:?[yes]:

Step 6 Press Enter to apply your changes or enter no to discard them.

For More Information

For more information about Worms, refer to Worms.

Troubleshooting Global Correlation

Make sure you observe the following when configuring global correlation:

•Because global correlation updates occur through the sensor management interface, firewalls must allow port 443/80 traffic.

•You must have an HTTP proxy server or a DNS server configured to allow global correlation features to function.

	Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.1
E-18	OL-24002-01

IPS4520K9 specifications

Cisco Systems has long been a leading player in network security, and its IPS (Intrusion Prevention System) series is a testament to its commitment to safeguarding digital environments. Among its notable offerings are the IPS4510K9 and IPS4520K9 models, both designed to provide advanced threat protection for mid-sized to large enterprise networks.

The Cisco IPS4510K9 and IPS4520K9 are distinguished by their cutting-edge features that help organizations defend against a myriad of cyber threats. These systems utilize a multi-layered approach to security, integrating intrusion prevention, advanced malware protection, and comprehensive visibility across the network.

One of the primary characteristics of the IPS4510K9 is its high performance. It boasts a throughput of up to 1 Gbps, making it suitable for environments that demand rapid data processing and real-time responses to threats. The IPS4520K9, on the other hand, enhances that capability with improved throughput of up to 2 Gbps, accommodating larger enterprises with heavier network traffic. These models are equipped with powerful processors that support complex signature matching and can intelligently distinguish between legitimate traffic and potential threats.

In addition to performance, both models are designed with scalability in mind. They can be easily integrated into existing Cisco infrastructures. This facilitates a seamless enhancement of security without causing significant interruptions to ongoing operations. Moreover, they offer flexible deployment options, allowing organizations to operate them inline or out of band depending on their specific needs.

The Cisco IPS4510K9 and IPS4520K9 leverage advanced detection technologies, utilizing a variety of signature types and heuristic analysis to detect known and unknown threats effectively. They are equipped with real-time alerting and reporting capabilities, giving security teams immediate visibility into potential breaches and enabling them to respond swiftly.

Furthermore, both models support a range of management options through the Cisco Security Manager, allowing for centralized administration, streamlined policy management, and enhanced monitoring capabilities. Automated updates ensure the systems remain current with the latest threat intelligence, vital for staying ahead of evolving cyber threats.

In summary, the Cisco Systems IPS4510K9 and IPS4520K9 represent powerful solutions for organizations seeking robust intrusion prevention capabilities. With their high performance, scalability, and advanced detection technologies, these systems are essential tools in the ever-changing landscape of cybersecurity, providing enterprises with the peace of mind needed to operate securely in today's digital world.

Cisco Systems IPS4520K9 When to Disable Anomaly Detection, Troubleshooting Global Correlation

Models: IPS4520K9