Secure Device Access

The use of weak or easily guessed passwords continues to be a security issue in many facets of the business world. Network devices, including home wireless routers, should always have passwords configured to limit administrative access.

Cisco IOS can be configured to use hierarchical mode passwords to allow different access privileges to a network device.

All networking devices should limit access as listed in Figure 1.

Use strong passwords that are not easily guessed. Consider the key points listed in Figure 2.

Note: Most of the labs in this course use simple passwords such as cisco or class. These passwords are considered weak and easily guessable and should be avoided in production environments. We only use these passwords for convenience in a classroom setting or to illustrate configuration examples.

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