Cisco routers are everywhere that networks are. They come in all sizes, from inexpensive units for homes and small offices to equipment costing well over 100,000 and capable of routing at gigabit speeds. A fixture in todays networks, Cisco claims roughly 70 of the router market, producing high-end switches, hubs, and other network hardware.
One unifying thread runs through the product line virtually all of Ciscos products run the Internetwork Operating System, or IOS. If you work with Cisco routers, its likely that you deal with Ciscos IOS softwarean extremely powerful and complex operating system, with an equally complex configuration language. With a cryptic command-line interface and thousands of commandssome of which mean different things in different situationsit doesnt have a reputation for being user-friendly.
Fortunately, theres help. This second edition of Cisco IOS in a Nutshell consolidates the most important commands and features of IOS into a single, well-organized volume that youll find refreshingly user-friendly. This handy, two-part reference covers IOS configuration for the TCPIP protocol family.
The first section includes chapters on the user interface, configuring lines and interfaces, access lists, routing protocols, and dial-on-demand routing and security. A brief, example-filled tutorial shows you how to accomplish common tasks. The second part is a classic OReilly quick reference to all the commands for working with TCPIP and the lower-level protocols on which it relies.
Brief descriptions and lists of options help you zero in on the commands you for the task at hand. Updated to cover Cisco IOS Software Major Release 12. 3, this second edition includes lots of examples of the most common configuration steps for the routers themselves.
Its a timely guide that any network administrator will come to rely on.