Lab 1: Basic commands.

   -----                 
  | R1  |                
   -----                 
f0/0 │ .254              
     │                   
     │                   
     │   192.168.10.0/24 
     │                   
 .1  │                   
    __  _                
   [__]|=|               
   /++/|_|               
    PC 1        
  

! Privilege mode
Router> enable
Router#

! Go back user mode
Router#disable
Router>

! Config mode
Router#conf ter
Router(config)#exit
Router#


! Interface mode
Router(config)# interface f0/0
Router(config-if)#exit
Router#(config)#exit
Router#

! Show all interface
show ip interface brief

! Go to interface f0/0
Router(config)# interface f0/0

! Enable interface 
Router(config-if)# no shutdown

! Disable interface
Router(config-if)# shutdown 

! Assign ip
Router(config-if)#ip add 192.168.10.254 255.255.255.0
Router#(config)#exit
Router#

! Change ip
Router(config-if)#ip add 192.168.10.253 255.255.255.0
Router#(config)#exit
Router#

! Delete ip
Router(config-if)#no ip add 192.168.10.253 255.255.255.0
Router#(config)#exit
Router#

! Another way to delete ip
Router(config-if)#no ip add 
Router#(config)#exit
Router#


! Test Connection
Router#ping 192.168.10.1

! Hostname
Router(config)#hostname R1
R1(config)#

! Show Version
R1# show version


! Logging Synchronous
R1(config)# line console 0
R1(config-line)# logging synchronous
R1(config-line)#


! Exec-timeout of sessions
R1(config)# line console 0
R1(config-line)# exec-timeout 0 10  ! 0: minute , 10 : second
R1(config-line)# exec-timeout 0 0 ! --> disable exec-timeout


! Set description on interface
R1(config)#inter f0/0
R1(config-if)#description Connect to PCA
R1(config-if)#end

! Show description
R1#show interfaces description

! Show mac of interface
R1#show inter f0/0 | inc bia


! Show running-config 
R1# show run

! Show startup-config
R1# show startup

! Save Config
R1# copy run start

! Save Config
R1# wr

! Erase Config
R1# erase startup-config