設置cisco登陸時顯示的警示性信息-banner

 

Cisco 配置banner消息

旗標（banner）消息能夠用來警示***者。

 

Router(config)#banner ?

LINE             c banner-text c, where 'c' is a delimiting character

exec             Set EXEC process creation banner

incoming         Set incoming terminal line banner

login            Set login banner

motd             Set Message of the Day banner

prompt-timeout Set Message for login authentication timeout

slip-ppp         Set Message for SLIP/PPP

 

缺省時旗標是關閉的。旗標命令通常包括5個不一樣的命令：

●banner exec－－規定並啓用一個消息，當在路由器上建立一個EXEC過程時顯示（當用戶認證成功登錄後顯示）。

●banner incoming－－規定並啓用一個旗標，當有來自網絡中某臺主機鏈接到終端鏈路時顯示。

●banner login－－規定並啓用一個旗標，在用戶名和口令登陸提示以前顯示。

●banner motd－－規定並啓用一個MOTD（message-of-the-day）旗標。

●banner slip-ppp－－規定並啓用一個旗標，當SLIP或PPP鏈接創建時顯示。

login和motd 的banner只須要作一個，exec在認證成功後顯示

 

 

配置:

 

Router(config)# banner motd #

 warning.

-----------------------------------------------------------------------

 

WARNING:You are connected to the cisco systems, Incorporated network.

Unauthorized access and use of this network will be vigorously prosecuted.

 

-----------------------------------------------------------------------

#

Router1#configure terminal

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

 

Router1(config)#banner exec # This is an exec banner #

 

Router1(config)#banner login # This is a login banner #

 

Router1(config)#banner motd $ This is a motd banner $

Router1(config)#end

Router1#

註釋 不用使用welcome 之類的字樣，下面是一個路由器登陸banner 作參考

banner motd #

**********************************************************

***WARNING!***WARNING!***WARNING!***WARNING!***WARNING!***

**********************************************************

#

 

 

顯示的區別

 

CISCO(config)#banner exec #

Enter TEXT message. End with the character '#'.

It's exec

#

 

GOAL(config)#banner login #

Enter TEXT message. End with the character '#'.

It's login

#

 

GOAL(config)#banner motd #

Enter TEXT message. End with the character '#'.

It's motd

#

It's motd

It's login

User Access Verification

Password:

Password:

It's exec

 

WISCOM>en

Password:

WISCOM#