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Chapter 4

Introduction to the Cisco IOS

delimiting character in the message itself. Also, once the message is complete,
press Enter, then the delimiting character, then Enter again. It'll still work if
you don't do that, but if you have more than one banner, they'll be combined
as one message and put on a single line.

These are the other banners:

Exec banner You can configure a line-activation (exec) banner to be
displayed when an EXEC process (such as a line-activation or incoming
connection to a VTY line) is created.

Incoming banner You can configure a banner to be displayed on termi-
nals connected to reverse Telnet lines. This banner is useful for providing
instructions to users who use reverse Telnet.

Login banner You can configure a login banner to be displayed on all
connected terminals. This banner is displayed after the MOTD banner
but before the login prompts. The login banner can't be disabled on a per-
line basis, so to globally disable the login banner, you must delete it with
the no banner login command.

Router Interfaces

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

Different routers use different methods to choose the interfaces used on

them. For instance, the following command shows a 2522 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 for that specific interface. The
command to choose serial port 5, for example, would be:

Router(config)#int serial 5

Router(config)-if)#

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