Setting the Router Name

The examples in this book use "Router" as the router 's name. That's fine for examples, but a bad idea in real life. Eventually, a router should be given a name. To set the router name to "Sphinx", use the hostname command:

Router(config)#hostname Sphinx

The router instantly responds by updating the prompt to reflect the new router name. The name can be up to 254 characters long, but don't use a name so long that you can't type it comfortably.

It's a good practice to follow a naming convention for your routers. With a logical, consistent naming scheme, it's easy to remember a router's name, or guess the name if you've forgotten it. For example, let's say that your router names all start with "rtr", followed by the city initials, followed by a number. Then, late one night when you're staring at a blank terminal screen trying to remember the name of the backbone router in New York, you can type rtr-ny-01 and be reasonably confident that you've guessed correctly.

Don't use underscores ( _ ) in router names. They are hard to type, often lead to confusion, and aren't legal in Domain Name System (DNS) names. Use a hyphen (-) instead. Similarly, avoid mixing upper- and lowercase. Instead of "routerOneNewYork," use "router-one-newyork." The router won't care, but your users will!

Getting Started

IOS Images and Configuration Files

Basic Router Configuration

Line Commands

Interface Commands

Networking Technologies

Access Lists

IP Routing Topics

Interior Routing Protocols

Border Gateway Protocol

Quality of Service

Dial-on-Demand Routing

Specialized Networking Topics

Switches and VLANs

Router Security

Troubleshooting and Logging

Quick Reference

Appendix A Network Basics


Cisco IOS in a Nutshell
Cisco IOS in a Nutshell (In a Nutshell (OReilly))
ISBN: 0596008694
EAN: 2147483647
Year: 2006
Pages: 1031
Authors: James Boney © 2008-2020.
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