CISCO Routerek
Számítógép hálózatok gyakorlata
ÓBUDAI EGYETEM
2011 TAVASZI FÉLÉV
8. LABORGYAKORLAT
PRÉM DÁNIEL
Cisco routers
• Operating system: IOS
(Internetwork Operating System)
• IOS is used in routers / switches
• Muliple authentication levels
• Interfaces are denoted by
slot/modul/number
– FastEthernet 3/0
IOS command line tools
• ? -> Available commands
• command ? -> available parameters
• TAB or ? when typing a command :
command completion
• Previous commands can be recalled using
the arrows
• disabling command: „no”
– no ip address; no shutdown
IOS authentication levels
Authentication levels are layered – you can only go one level up or down.
Shortcut: ctrl+z --> go back to privilegized mode
level / mode
enter to level
prompt
leave level
user
<enter>
login
>
logout
privileged
enable
#
disable
exit
logout
general
configure terminal
(config)#
exit
end
interface
interface type x/x
(config-if)#
exit
IOS default settings
•
•
•
•
•
hostname
enable secret xxx
show running-config
show startup-config
show ip route
• Changes made are lost at reboot – to make them
permanent copy the running config to the startup
config with the command
– copy running-config startup-config