Chapter 17 Administrative Tasks for the Sensor

Clearing the Denied Attackers List

Displaying and Deleting Denied Attackers

To display the list of denied attackers and delete the list and clear the statistics, follow these steps:

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

Step 2 Display the list of denied IP addresses. The statistics show that there are two IP addresses being denied at this time.

sensor# show statistics denied-attackers Denied Attackers and hit count for each.

10.20.4.2= 9

10.20.5.2= 5

Step 3 Delete the denied attackers list.

sensor# clear denied-attackers

Warning: Executing this command will delete all addresses from the list of attackers currently being denied by the sensor.

Continue with clear? [yes]:

Step 4 Enter yes to clear the list.

Step 5 Delete the denied attackers list for a specific virtual sensor.

sensor# clear denied-attackers vs0

Warning: Executing this command will delete all addresses from the list of attackers being denied by virtual sensor vs0.

Continue with clear? [yes]:

Step 6 Enter yes to clear the list.

Step 7 Remove a specific IP address from the denied attackers list for a specific virtual sensor.

sensor# clear denied-attackers vs0 ip-address 192.0.2.0

Warning: Executing this command will delete ip address 192.0.2.0 from the list of attackers being denied by virtual sensor vs0.

Continue with clear? [yes]:

Step 8 Enter yes to clear the list.

Step 9 Verify that you have cleared the list. You can use the show statistics denied-attackersor show statistics virtual-sensorcommand.

sensor# show statistics denied-attackers Denied Attackers and hit count for each. Denied Attackers and hit count for each. Statistics for Virtual Sensor vs0

Denied Attackers with percent denied and hit count for each.

Denied Attackers with percent denied and hit count for each.

Statistics for Virtual Sensor vs1

Denied Attackers with percent denied and hit count for each.

Denied Attackers with percent denied and hit count for each.

 

 

 

sensor#

 

 

 

sensor# show statistics virtual-sensor

 

 

 

Virtual Sensor Statistics

 

 

 

Statistics for Virtual Sensor vs0

 

 

 

Name of current Signature-Definition instance = sig0

 

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

17-26

 

OL-29168-01

 

 

 

 

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Cisco Systems IPS4510K9 manual Displaying and Deleting Denied Attackers, 17-26
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IPS4510K9 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.
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