Hi the NFR NID-300 (IDS group test) is a network-based IDS,

It is supplied as an appliance.

From dividing the management and monitoring interfaces the NID-300 could operate in stealth mode.

As the monitoring interface is not respond to any network traffic or requests from any service on the monitored network

Basically four versions of the NID-300 series are there

The difference being in the number and speed of the Ethernet interfaces.

NFR NID-300



The top-of-the-range model has two 10/100Mbit and two gigabit network interfaces.

One of these interfaces is always reserved for management, but the remainder can be used for monitoring.

In this way, a single NID-300 can monitor load-balanced or failover WAN connections.

The price of the NFR NID-300 starts from the $7,500