The Cisco IPS solution combines passive IDS with inline IPS. The Cisco IPS appliances offer comprehensive proactive protection of the network through their capability to collaborate with other network security resources. These appliances support multivector threat identification to protect the network from policy violations, vulnerability exploitations, and anomalous activity through detailed inspection of traffic in Layers 2 through 7.
Cisco IPS 4200 Series sensors offer significant network protection by helping detect, classify, and stop threats, including worms, spyware, adware, network viruses, and application abuse. Using Cisco IPS Sensor Software Version 5.1, the Cisco IPS solution combines inline IPS with innovative technologies that improve accuracy so that more threats can be stopped without the risk of dropping legitimate network traffic. This software includes enhanced detection capabilities and improved scalability, resiliency, and performance features.
The available sensors support bandwidths up to 1 gigabit per second (Gbps) and include the following:
■ The Cisco IPS 4215 sensor accurately investigates and protects up to 65 Mbps of traffic and is suitable for multiple T1/E1 and T3 environments.
■ The Cisco IPS 4240 sensor, at 250 Mbps, can be deployed to provide protection in switched environments with multiple T3 subnets. With the support of multiple 10/100/1000 interfaces, it can also be deployed on partially utilized gigabit links or fully saturated full-duplex 100-Mbps environments.
■ The Cisco 4240-DC sensor is based on the IPS 4240 sensor but supports DC power. The IPS 4240-DC is Network Equipment Building System (NEBS)-compliant and can be deployed in environments that have specific requirements pertaining to NEBS Level 3 compliance.
NOTE NEBS is a set of standards for telecommunications equipment that specifies the equipment's operation with respect to a variety of environmental factors such as temperature, humidity, and vibration.
■ The Cisco IPS 4255 sensor delivers 500 Mbps of performance. It can be used to protect partially utilized gigabit subnets and traffic traversing switches being used to aggregate traffic from many subnets.
■ The Cisco IPS 4260 sensor delivers 1 Gbps of protection performance. It can be used to protect both gigabit subnets and aggregated traffic traversing switches from multiple subnets. This purpose-built device supports both copper and fiber environments, providing deployment flexibility.
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