O'Reilly logo

CCNA® Cisco Certified Network Associate: Study Guide, Seventh Edition by Todd Lammle

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Router Interfaces

Interface configuration is one of the most important router configurations because without interfaces, a router is pretty much a completely useless object. Plus, interface configurations must be totally precise to enable communication with other devices. Network layer addresses, media type, bandwidth, and other administrator commands are all used to configure an interface.

Different routers use different methods to choose the interfaces used on them. For instance, the following command shows a Cisco router with 10 serial interfaces, labeled 0 through 9:

Router(config)#int serial ?

 <0-9> Serial interface number

Now it’s time to choose the interface you want to configure. Once you do that, you will be in interface configuration ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required