Cisco Router Configuration

Basic configuration on cisco router

#### Show IP and Interface####
R1#show ip interface brief

#### Set Router Hostname####

R1(Config)#hostname R1

####Set Password for Privilege mode####
R1(config)#enable password Your_Pass ##(Clear text password so anyone can see.)

or

R1(config)#enable secret Your_Pass (Encrypt your password)

### To encrypt all your password###

R1(config)# service password-encryption

###Enable password to telnet####

(Mean that we enable to login to router by telnet)

R1(config)#line vty 0 15  #(max users access 16)

R1(config)#password 123

R1(config)#exec-timeout 5 0
R1(config)#privilege level 15  #(Set level for user have right to do sth)
R1(config)#login

#### Enable password to console####

(Mean that we enable to login to router by console)
R1(config)#line console 0
R1(config-line)#password cisco
R1(config-line)#login
R1(config-line)#privilege level 15

##### set IP address on Ethernet interface#####
R1(config)#int f0/1
R1(config-if)#ip address 1.1.1.1 255.255.255.0
R1(config-if)#description LAN
R1(config-if)#no shutdown

##### set IP address on Gigabit interface#####
R1(config)#int gigabitEthernet 0/1
R1(config-if)#ip address 1.1.1.1 255.255.255.0
R1(config-if)#description LAN
R1(config-if)#no shutdown

#### Save configuration####
R1(config)#copy running-config startup-config
Or
R1(config)#write memory
Or
R1(config)#wr

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