Chapter 14 Configuring Attack Response Controller for Blocking and Rate Limiting

Configuring Blocking Properties

•Enabling Writing to NVRAM, page 14-15

•Logging All Blocking Events and Errors, page 14-16

•Configuring the Maximum Number of Blocking Interfaces, page 14-17

•Configuring Addresses Never to Block, page 14-19

Allowing the Sensor to Block Itself

 

 

 

Caution

We recommend that you do not permit the sensor to block itself, because it may stop communicating

 

 

 

 

with the blocking device. You can configure this option if you can ensure that if the sensor creates a rule

 

 

 

 

to block its own IP address, it will not prevent the sensor from accessing the blocking device.

 

 

 

 

 

 

 

 

 

Use the allow-sensor-block {true false} command in the service network access submode to configure

 

 

 

 

the sensor to block itself. To allow the sensor to block itself, follow these steps:

 

 

 

 

 

 

 

 

Step 1

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

 

 

 

Step 2

Enter network access submode.

 

 

 

 

sensor# configure terminal

 

 

 

 

sensor(config)# service network-access

 

 

 

Step 3

Enter general submode.

 

 

 

 

sensor(config-net)# general

 

 

 

Step 4

Configure the sensor to block itself. By default, this value is false.

 

 

 

 

sensor(config-net-gen)# allow-sensor-block true

 

 

 

Step 5

Verify the settings.

 

 

 

 

sensor(config-net-gen)# show settings

 

 

 

 

general

 

 

 

 

-----------------------------------------------

 

 

 

 

 

log-all-block-events-and-errors: true <defaulted>

 

 

 

 

enable-nvram-write: false <defaulted>

 

 

 

 

enable-acl-logging: false <defaulted>

 

 

 

 

allow-sensor-block: true 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)

 

 

 

 

-----------------------------------------------

 

 

 

 

 

ip-address: 192.0.2.1

 

 

 

 

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-----------------------------------------------

 

 

 

 

 

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

 

 

 

 

-----------------------------------------------

 

 

 

 

 

ip-address: 209.165.200.224/27

 

 

 

 

-----------------------------------------------

 

 

 

 

 

-----------------------------------------------

 

 

 

 

 

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

 

 

 

 

-----------------------------------------------

 

 

 

 

 

--MORE--

 

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

14-8

 

 

OL-29168-01

 

 

 

 

 

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Cisco Systems IPS4510K9 manual Allowing the Sensor to Block Itself, Enter network access submode, 14-8
Page 381 Page 383

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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