Cisco Router Configuration Commands

[Hardwareman]

Here is a compiled list of Cisco Systems router configuration commands you may use for later reference. If you know of more commands related to this list, please share.

Set a console password to cisco
Router(config)#line con 0
Router(config-line)#login
Router(config-line)#password cisco

Set a telnet password
Router(config)#line vty 0 4
Router(config-line)#login
Router(config-line)#password cisco

Stop console timing out
Router(config)#line con 0
Router(config-line)#exec-timeout 0 0

Set the enable password to cisco
Router(config)#enable password cisco

Set the enable secret password to peter.
This password overrides the enable password and is encypted within the config file
Router(config)#enable secret peter

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

To disable an interface
Router(config-if)#shutdown

Set the clock rate for a router with a DCE cable to 64K
Router(config-if)clock rate 64000

Set a logical bandwidth assignment of 64K to the serial interface
Router(config-if)bandwidth 64
Note that the zeroes are not missing

To add an IP address to a interface
Router(config-if)#ip addr 10.1.1.1 255.255.255.0

To enable RIP on all 172.16.x.y interfaces
Router(config)#router rip
Router(config-router)#network 172.16.0.0

Disable RIP
Router(config)#no router rip

To enable IRGP with a AS of 200, to all interfaces
Router(config)#router igrp 200
Router(config-router)#network 172.16.0.0

Disable IGRP
Router(config)#no router igrp 200

Static route the remote network is 172.16.1.0, with a mask of 255.255.255.0, the next hop is 172.16.2.1, at a cost of 5 hops
Router(config)#ip route 172.16.1.0 255.255.255.0 172.16.2.1 5

Disable CDP for the whole router
Router(config)#no cdp run

Enable CDP for he whole router
Router(config)#cdp run

Disable CDP on an interface
Router(config-if)#no cdp enable

[teenQ]

You might need to sometime configure hyperterminal. First, you need a console cable (RJ-45 to Serial) connecting the serial port of your computer to the RJ-45 marked "console" on your router. Next, open Hyper Terminal from Start Menu > All Programs > Accessories > Communications > Hyper-Terminal and enter a name for your new connection, select the serial port which is connected the console cable and click Default Settings then ok. Now you are connected to the router and from here you can configure.