Chapter 14 Configuring Attack Response Controller for Blocking and Rate Limiting

Disabling Blocking

enable-acl-logging: false <defaulted>

allow-sensor-block: false default: false

block-enable: true default: true

block-max-entries: 100 default: 250

max-interfaces: 250 <defaulted>

master-blocking-sensors (min: 0, max: 100, current: 0)

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never-block-hosts (min: 0, max: 250, current: 1)

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ip-address: 192.0.2.1

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never-block-networks (min: 0, max: 250, current: 1)

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ip-address: 209.165.200.224/27

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block-hosts (min: 0, max: 250, current: 0)

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--MORE--

Step 8 Exit network access submode.

sensor(config-net-gen)# exit

sensor(config-net)# exit Apply Changes:?[yes]:

Step 9 Press Enter to apply the changes or enter no to discard them.

For More Information

•For the procedure for configuring the sensor to manage Cisco routers, see Configuring the Sensor to Manage Cisco Routers, page 14-22.

•For the procedure for configuring the sensor to manage Cisco routers and switches, seeConfiguring the Sensor to Manage Catalyst 6500 Series Switches and Cisco 7600 Series Routers, page 14-25.

Specifying Maximum Block Entries

Caution We do not recommend setting the maximum block entries higher than 250. Some devices have problems with larger numbers of ACL or shun entries. Refer to the documentation for each device to determine its limits before increasing this number.

Note The number of blocks will not exceed the maximum block entries. If the maximum is reached, new blocks will not occur until existing blocks time out and are removed.

Use the block-max-entriescommand in the service network access submode to configure the maximum block entries. You can set how many blocks are to be maintained simultaneously (1 to 65535). The default value is 250. To change the maximum number of block entries, follow these steps:

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

 

 

OL-29168-01

 

 

14-11

 

 

 

 

 

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Cisco Systems IPS4510K9 manual Specifying Maximum Block Entries, 14-11
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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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