VLAN configuration

VLAN

• By default the switch is set by vlan1
• Valid number for vlan range is from 2-4094
• When configure configure the interface, it is in a disable state until you enable it

Create VLAN and assign VLAN name

sw1>config terminal

sw1 (config) # vlan 20

sw1 (config) # name Student

sw1 (config) # no shut

sw1 (config) # exit

Remove VLAN

sw1> conf t

sw1(config) # no vlan 20

sw1(config) #exit

To show or check VLAN

sw1 # show vlan

Assign port on specific VLAN

sw1>conf t

sw1(config) # int fa0/2

sw1(config-if) # switchport mode access

sw1(config-if) # switchport access vlan 20

sw1(config-if) # no shut

sw1(config-if) # exit

Basic cisco configuration

Setup a password on Router/Switch privileged mode 

S1 > en
S1# conf t
S1 (config) # enable password password

ex :

S1 > en
S1# conf t
S1 (config) # enable password cisco

   Encrypting Passwords 

the password we create in the privilege mode still can be view in the #show run command

to hide this password use this command 

S1 > en
S1# conf t
S1 (config) # service password-encryption

Create banner motd (message of the day)

to create the banner info use this command 

S1 > en
S1# conf t
S1 (config) # banner motd ^ insert your text here ^

ex

S1 > en
S1# conf t
S1 (config) # banner motd ^

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*  Unauthrorised access not allowed  *
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