Configuring the Login, EXEC and MOTD Banners

Real World Application:

Be common banner Cisco devices on the network, including legal information and other unauthorized individuals trying to build an exec session with your device warning message. Try to exec session establishment, after the login banner display before the MOTD banner appears before a logon banner and user authentication. Once the individual has to start an EXEC session with the device display EXEC banners.

Lab Prerequisites:

• If you are using GNS3, than the starting R1 supported networking GNS3 topology of the stub zone.
• Establish a console session with the Router 1.

Lab Instruction:

Step 1. Target to the one you want to configure the desired login banner, inform the incoming session legal and privacy information. Configure a banner, you will need to use a delimiting character; this is one character appears only in the beginning and end of the banner. ^ Commonly used. Types of settings you can use the banner command followed by login, EXEC, the banner would prefer it to be a banner motd separator characters. As shown below, you can see the banners to configure basic logon and configuration validation through the end and reshape an exec session with the device.

Router(config)#banner login ^

Enter TEXT message.  End with the character '^'

#  This is a Login banner used to show   #

#    legal and privacy information.      #

#                                        #

#     Unauthorized users prohibited      #

^

Router(config)#end

Router#exit

As shown below is the login banner configuration verfication;

Goal 2 requires that you configure the exec banner, any authenticated exec session will show what device host name, as well as online session is established. This type of banner you want to configure, you need to know what banner marking. Banner tokens, basically you can get in a banner that calls from the device-specific information and dispatches the message to the variable set in the banner. $ (Hostname) and $ (line), shows the host name and the line number, banner tokens used in this goal.

In accordance with the requirements of objective 3 Configuring the exec banner, session establishment, use the following text to the previous line $ (line) $ (hostname)

Logon banners that you have configured the as before you execute the same command in global configuration mode, but rather the execution banner login ^ you will perform the exec^ is shown below the banner;

Router>enable

Password: 

Router#

Router#configure terminal 

Enter configuration commands, one per line.  End with CNTL/Z.

Router(config)#banner exec ^

Enter TEXT message.  End with the character '^'

Session established to $(hostname) on line $(line)

^

Router(config)#