Chapter 7

Managing a Cisco Internetwork

The CCNA exam topics covered in this chapter include the following:

• Configure, verify, and troubleshoot basic router operation and routing on Cisco devices.
  • Manage IOS configuration files (including: save, edit, upgrade, restore).
  • Manage Cisco IOS.
  • Verify network connectivity (including: using ping, traceroute, and telnet or SSH).

Here in Chapter 7, I’m going to show you how to manage Cisco routers on an internetwork. The Internetwork Operating System (IOS) and configuration files reside in different locations in a Cisco device, so it’s really important to understand both where these files are located and how they work.

You’ll be learning about the main components of a router, the router boot sequence, and the configuration register, including how to use the configuration register for password recovery. After that, you’ll find out how to manage routers by using the copy command with a TFTP host when using the Cisco IOS File System (IFS).