Appendix A System Architecture

MainApp

•Maintaining blocking state across network device restarts

The ARC reapplies blocks and removes expired blocks as needed whenever a network device is shut down and restarted. The ARC is not affected by simultaneous or overlapping shutdowns and restarts of the ARC.

•Authentication and authorization

The ARC can establish a communications session with a network device that uses AAA authentication and authorization including the use of remote TACACS+ servers.

•Two types of blocking

The ARC supports host blocks and network blocks. Host blocks are connection based or unconditional. Network blocks are always unconditional.

•NAT addressing

The ARC can control network devices that use a NAT address for the sensor. If you specify a NAT address when you configure a network device, that address is used instead of the local IP address when the sensor address is filtered from blocks on that device.

•Single point of control

The ARC does not share control of network devices with administrators or other software. If you must update a configuration, shut down ARC until the change is complete. You can enable or disable the ARC through the CLI or any Cisco IPS manager. When the ARC is reenabled, it completely reinitializes itself, including rereading the current configuration for each controlled network device.

Note We recommend that you disable the ARC from blocking when you are configuring any network device, including firewalls.

•Maintains up to 250 active blocks at any given time

The ARC can maintain up to 250 active blocks at a time. Although the ARC can support up to 65535 blocks, we recommend that you allow no more than 250 at a time.

Note The number of blocks is not the same as the number of interface and directions.

Supported Blocking Devices

The ARC can control the following devices:

•Cisco routers running Cisco IOS 11.2 or later

Note To perform rate limiting, the routers must be running Cisco IOS 12.3 or later.

•Catalyst 5000 series switches with Supervisor Engine software 5.3(1) or later running on the supervisor engine, and IOS 11.2(9)P or later running on the RSM.

Note You must have the RSM because blocking is performed on the RSM.

•Catalyst 6000 series switches with PFC installed running Catalyst software 5.3 or later

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

 

 

 

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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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