Cisco, Inc. offers the widest range of security devices and solutions to help defend against network threats. From the entry level PIX 501 firewall to the new Integrated Services Routers, all offer in-depth security and services scalable for all sizes of business.

The Self-Defending Network is Cisco's long-term strategy to protect an organization's business processes by identifying, preventing, and adapting to threats from both internal and external sources. This protection helps organizations take better advantage of the intelligence in their network resources, thus improving business processes and cutting costs.

There are three principal characteristics of the Cisco Self-Defending Network: