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Cisco Systems IPS4520K9 manual Troubleshooting Blocking

Models: IPS4520K9

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Appendix E Troubleshooting

Troubleshooting the Appliance

For More Information

For more information on IPS system architecture, refer to System Architecture.

Blocking

This section provides troubleshooting help for blocking and the ARC service. It contains the following topics.

•Troubleshooting Blocking, page E-35

•Verifying ARC is Running, page E-36

•Verifying ARC Connections are Active, page E-37

•Device Access Issues, page E-39

•Verifying the Interfaces and Directions on the Network Device, page E-40

•Enabling SSH Connections to the Network Device, page E-41

•Blocking Not Occurring for a Signature, page E-41

•Verifying the Master Blocking Sensor Configuration, page E-42

Troubleshooting Blocking

After you have configured the ARC, you can verify if it is running properly by using the show version command. To verify that the ARC is connecting to the network devices, use the show statistics network-accesscommand.

Note The ARC was formerly known as Network Access Controller. Although the name has been changed since IPS 5.1, it still appears in IDM, IME, and the CLI as Network Access Controller, nac, and network-access.

To troubleshoot the ARC, follow these steps:

1.Verify that the ARC is running.

2.Verify that the ARC is connecting to the network devices.

3.Verify that the Event Action is set to Block Host for specific signatures.

4.Verify that the master blocking sensor is properly configured.

For More Information

•For the procedure to verify that ARC is running, see Verifying ARC is Running, page E-36.

•For the procedure to verify that ARC is connecting, see Verifying ARC Connections are Active, page E-37.

•For the procedure to verify that the Event Action is set to Block Host, see Blocking Not Occurring for a Signature, page E-41.

•For the procedure to verify that the master blocking sensor is properly configured, see Verifying the Master Blocking Sensor Configuration, page E-42.

•For a discussion of ARC architecture, refer to Attack Response Controller.

 

 

Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.1

 

 

 

 

 

 

 

OL-24002-01

 

 

E-35

 

 

 

 

 

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Cisco Systems IPS4520K9 manual Troubleshooting Blocking
Page 340 Page 342

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.