Chapter 8 Configuring Event Action Rules

Configuring OS Identifications

Adding, Editing, Deleting, and Moving Configured OS Maps

Use the os-identificationscommand in the service event action rules submode to configure OS host mappings, which take precedence over learned OS mappings. You can add, edit, and delete configured OS maps. You can move them up and down in the list to change the order in which the sensor computes the attack relevance rating and risk rating for that particular IP address and OS type combination.

You can also move them up and down in the list to change the order in which the sensor resolves the OS associated with a particular IP address. Configured OS mappings allow for ranges, so for network 192.168.1.0/24 an administrator might define the following(Table 8-1):

Table 8-1 Example Configured OS Mapping

IP Address Range Set

OS

 

 

192.168.1.1

IOS

 

 

192.168.1.2-192.168.1.10,192.168.1.25

UNIX

 

 

192.168.1.1-192.168.1.255

Windows

 

 

More specific mappings should be at the beginning of the list. Overlap in the IP address range sets is allowed, but the entry closest to the beginning of the list takes precedence.

The following options apply:

•calc-arr-for-ip-range—Calculates the attack relevance rating for victims in this range. The value is <A.B.C.D>-<A.B.C.D>[,<A.B.C.D>-<A.B.C.D>], for example, 10.20.1.0-10.20.1.255,10.20.5.0-10.20.5.255).

Note The second IP address in the range must be greater than or equal to the first IP address.

•configured-os-map {edit insert move] name1[begin end inactive before after}—Specifies a collection of administrator-defined mappings of IP addresses to OS IDs (configured OS mappings take precedence over imported and learned OS mappings).

•ip—Specifies the host IP address (or addresses) running the specified OS. The value is <A.B.C.D>-<A.B.C.D>[,<A.B.C.D>-<A.B.C.D>], for example, 10.20.1.0-10.20.1.255,10.20.5.0-10.20.5.255.

Note The second IP address in the range must be greater than or equal to the first IP address.

•os—Specifies the OS type the host (or hosts) is running:

–general-os—All OS types

–ios—Variants of Cisco IOS

–mac-os—Variants of the Apple System OS prior to OS X

–netware—Netware

–other —Any Other OS

–unix—Variants of UNIX

–aix—Variants of AIX

–bsd—Variants of BSD

 

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Cisco Systems IPS4510K9 manual Adding, Editing, Deleting, and Moving Configured OS Maps, IP Address Range Set, Ios, Unix
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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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