Summary

In this chapter, you learned how Cisco routers are configured and how to manage those configurations.

This chapter covered the internal components of a router, which included ROM, RAM, NVRAM, and flash.

In addition, I covered what happens when a router boots and which files are loaded. The configuration register tells the router how to boot and where to find files, and you learned how to change and verify the configuration register settings for password recovery purposes.

Next, you learned how to back up and restore a Cisco IOS image as well as how to back up and restore the configuration of a Cisco router. I showed you how to manage these files using the CLI and IFS.

Then you learned how to use CDP and Telnet to gather information about remote devices. Finally, the chapter covered how to resolve hostnames and use the ping and trace commands to test network connectivity as well as how to use the debug and show processes commands.