13
http:\\ciscocertifications.info
ners. Use the no motd-banner line configuration command to disable the MOTD banner for reverse
Telnet sessions on asynchronous lines.
*Keypoints:Message of the day banners are displayed at login.Know command to enter the MOTD banner.IOS Startup Commands
Upon boot the Router runs a POST check on the Hardware, finds and loads the IOS software, finds and
loads the startup-config file. If no valid startup-config file exists the router enters setup mode.
EXEC commandRouter> reload(reboot Cisco)ROM monitor commandsrommon> boot
(boots from ROM - usual default)
rommon> boot flash
(boots from flash)
rommon> boot filename ip address
(boots via tftp)
Global Configuration commandsRouter(config)# boot system flash(boots from flash)
Router(config)# boot system rom
(boots from ROM - usual default)
Router(config)# boot system tftp < filename> <IP address> (boots via tftp)
Keypoints:To have the router obtain its boot image from the TFTP Server, you would use the "boot systemtftp" command. To load the boot image from ROM, you would use "boot system ROM".By default, a router usually gets it boot image from NVRAM.If NVRAM is corrupted and the TFTP server is down, the router will get its boot image from ROM.Setup Command
The setup mode is either manually started by entering Router# setup or by booting a server with no
valid startup-config file in NVRAM. Basically, setup mode asks you questions to set up the router,
such as hostname, passwords and IP addresses for interfaces. You are presented with the script at the
end before it is applied. It is then copied to NVRAM and becomes the startup-config and running-
config file on the Router.
The Command Line Interface (CLI) allows you to make very detailed changes to your configurations.
However, some major configuration changes do not require the detail provided by CLI. In these cases,
you can use the setup command facility to make major enhancements to your overall configuration.
Additionally, if you are not familiar with Cisco products and CLI, the setup command facility is a par-
ticularly valuable tool because it asks you the questions required to make configuration changes.
When you enter the setup command facility after first-time startup, an interactive dialog called the
System Configuration Dialog appears on the system console screen. The System Configuration Dialog
guides you through the configuration process. It prompts you first for global parameters and then for
interface parameters. The values shown in brackets next to each prompt are the default values last set
using either the setup command facility or the configure command. The prompts and the order in which
they appear on the screen vary depending on the platform and the interfaces installed on the device.