Curiosity is insubordination in its purest form. -Vladimir Nabokov

jueves, 23 de marzo de 2006

Banners de advertencia en Cisco

Se pueden mostrar banners de advertencia a distintos niveles.
vlan7(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

Creamos un banner que aparezca al intentar conectar...
vlan7(config)#banner login #
Enter TEXT message. End with the character '#'.
~ WARNING ~
Authorized Access ONLY!
All connections are logged and monitored. Any unauthorized use will be prosecuted to the fullest extent of the law. If you do not agree to this conditions, disconnect now.
#
vlan7(config)#

...y otro que aparezca una vez estamos dentro del sistema.
vlan7(config)#banner motd #
Enter TEXT message. End with the character '#'.
You are connected to a monitored network. Unauthorized access and use of this network will be vigorously prosecuted.
#
vlan7(config)#

Probemoslo:
vlan7@probador ~ $ ssh 192.168.2.1
vlan7@192.168.2.1's password:

You are connected to a monitored network. Unauthorized access and use of this network will be vigorously prosecuted.
vlan7>


Vaya, solo nos aparece el banner motd. Hay un problema, y es que si entramos por SSH no nos muestra el banner login. En cambio si entraramos por Telnet si que nos lo mostraria. ¿A alguien se le ocurre como solucionar esto?

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