Cisco Router Basic Configuration Commands

Naming a Device

Router>

Router>enable

Router#configure terminal

Router(config)#hostname CCNA5

CCNA5(config)#

Remove the name of a device:

CCNA5(config)#no hostname

Router(config)#

Set Password

• Console Password – Limits device access using the console connection

Router(config)#line console 0

Router(config-line)#password cisco

Router(config-line)#login

• Virtual Terminal Password (VTY Password) – Limits device access using Telnet

Router(config)#line vty 0 4

Router(config-line)#password cisco

Router(config-line)#login

• Enable Password – Limits access to the privileged EXEC mod

Router(config)#enable password cisco

• Enable Secret Password (Strongly encrypted enable password)

Router(config)#enable secret password

Set Banner

Router(config)#banner motd # Welcome to CCNA5.com #

Manage Configuration File

• Checking Configuration Files – Lists the complete configuration currently active in RAM

Router#show running-configuration

• If the active configuration in RAM is correct, it can be copied to NVRAM

Router#copy running-config startup-config

Removing All Configurations

Router#erase startup-config

Configure Router Interfaces

• Configuring Router Interfaces

Router(config)#interface type port

Router(config-if)#ip address IP_address subnet_mask

Router(config-if)#no shutdown

For example:

Router(config)#interface fastEthernet 0/0

Router(config-if)#ip address 192.168.10.1 255.255.255.0

Router(config-if)#no shutdown

• Configure Interface Description

Router(config)#interface fastEthernet 0/0

Router(config-if)#description Sales Lan

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