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The Computer Security Institute (CSI) is an organization that provides education and training on network security fundamentals. Periodically it performs market research studies on security issues with companies. In one study, more than 70 percent of all the companies polled reported experiencing some kind of security breach. Knowing this information, as a network administrator, one of your roles will be to ensure that access to your networking devices is strictly controlled. The following sections will introduce you to securing your IOS device.
Note
The information introduced in this chapter is only the beginning of security features you’ll set up on your IOS devices; many more of these features are discussed throughout the book, such as port security on the switches in Chapter 12, Security Device Manager (SDM) in Chapter 18, and access control lists (ACLs) in Chapter 22, to name a few.