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Installing Cisco Intrusion Prevention System Appliances and Modules 5.0
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Chapter 1 Introducing the Sensor
Appliances
•
IDS-4230-SFDDI
•
IDS-4230-DFDDI
Note
WS-X6381, IDSM,
is a legacy model and is not supported in this document.
Note
IDS-4210 requires a memory upgrade to support the most recent Cisco IPS software. For more
information, see
Upgrading the Memory, page 2-3
.
Appliances
This section describes the Cisco 4200 series appliance, and contains the following topics:
•
Introducing the Appliance, page 1-8
•
Appliance Restrictions, page 1-9
•
Connecting an Appliance to a Terminal Server, page 1-9
•
Modules, page 1-10
Introducing the Appliance
The appliance is a high-performance, plug-and-play device. The appliance is a component of the IPS, a
network-based, real-time intrusion prevention system. For a list of supported appliances see
Supported
Sensors, page 1-6
.
You can use the CLI, IDM, or ASDM to configure the appliance. For the list of IPS documents and how
to access them, refer to
Documentation Roadmap for Cisco Intrusion Prevention System 5.0
.
You can configure the appliance to respond to recognized signatures as it captures and analyzes network
traffic. These responses include logging the event, forwarding the event to the manager, performing a
TCP reset, generating an IP log, capturing the alert trigger packet, and reconfiguring a router. The
appliance offer significant protection to your network by helping to detect, classify, and stop threats
including worms, spyware and adware, network viruses, and application abuse.
After being installed at key points in the network, the appliance monitors and performs real-time analysis
of network traffic by looking for anomalies and misuse based on an extensive, embedded signature
library. When the system detects unauthorized activity, appliances can terminate the specific connection,
permanently block the attacking host, log the incident, and send an alert to the manager. Other legitimate
connections continue to operate independently without interruption.
Appliances are optimized for specific data rates and are packaged in Ethernet, Fast Ethernet, and Gigabit
Ethernet configurations. In switched environments, appliances must be connected SPAN port or VACL
capture port of the switch.
The Cisco IPS 4200 series appliances provide the following:
•
Protection of multiple network subnets through the use of up to eight interfaces
•
Simultaneous, dual operation in both promiscuous and inline modes