As we have already discussed that CISCO device has a command hierarchy and it has multiple modes in CLI.
The basic CLI modes that we will be referring to below are as follows:
Router> =User EXEC Mode
Router# = Privileged EXEC mode
Router(config)#= Global Configuration Mode
Router(config-if)# =Interface Configuration Mode
Router(config-line)# =Line Configuration Mode
How to configure the Hostname?
Router(config)# hostname IP-NOC IP-NOC(config)#
How To Configure IP address in a Router?
IP-NOC(config)# interface GigabitEthernet 1/1 IP-NOC(config-if)# ip address 10.0.0.1 255.255.255.0 IP-NOC(config-if)# no shutdown IP-NOC(config-if)# exit
How to configure the IP address in a Switch?
IP-NOC(config)# interface GigabitEthernet 0/0/1 IP-NOC(config-if)#no switchport IP-NOC(config-if)# ip address 100.0.1 255.255.255.0 IP-NOC(config-if)# no shutdown IP-NOC(config-if)# exit
IP-NOC(config)# interface vlan 1 IP-NOC(config-if)# ip address 192.168.1.1 255.255.255.0 IP-NOC(config-if)# no shutdown IP-NOC(config-if)# exit
How to Save your configuration?
There are 2 commands to save the configuration in switch and router.
Router# copy running-config startup-config Or Router# write memory
How to Erase Configuration?
Router# erase startup-config OR Router# write erase
How to reboot the Router?
Router# reload
How to check the IOS Version?
Router#show version
How To Display all memory locations and file names?
Router# dir all
How to Display the saved, startup configuration file ?
Router# show running-config Router# show startup-config
How to Prevent Syslog and event messages from interrupting CLI input ?
Router(config)#line console 0 Router(config-line)# logging synchronous
How to prevent DNS resolution attempts for mistyped commands?
Router(config)# no ip domain-lookup
How to disable Auto time out from the console?
Router(config)#line console 0 Router(config-line)# exec-timeout 0 0 Router(config-line)#exit
How to set the Login banner ?
Router(config)#banner motd #Unauthorized access to this device is prohibited!#
How to Setting Up Clock & Date?
Router#clock set 01:02:15 09 june 2022