Saturday, June 27, 2009

Basic router configuration

BASIC ROUTER CONFIGURATION


Configuring the Router’s Name
ROUTER# config t
ROUTER(config)# hostname NAME

Configuring the Interfaces, Ethernet and Serial
NAME# config t
NAME(config)# int interface type & number (fa0/0, fa0/1, s0/0 or s0/1)
NAME(config-if)# description your description of the interface
NAME(config-if)# ip address ip address subnet mask
NAME(config-if)# clock rate 56000 (when configuring a DCE serial interface only)
NAME(config-if)# no shutdown
NAME(config-if)# exit

Configuring Routing
Dynamic:
NAME# config t
NAME(config)# router rip OR NAME(config)# router IGRP AS #
NAME(config-router)# network network number
NAME(config-router)# network network number

STATIC:
Name(config)# ip route destination network Subnet Mask next hop IP address

Configuring Passwords
Encrypted: Plain text:
NAME# config t NAME# config t
NAME(config)# enable secret class NAME(config)# enable secret class


Console:
NAME# config t
NAME(config)# line con 0
NAME(config-line)# password cisco
NAME(config-line)# login
(config-line)#exit

Virtual Terminal (Telnet):
NAME# config t
NAME(config)# line vty 0 4
NAME(config-line)# password cisco
NAME(config-line)# login
(config-line)#exit
Banner:
NAME# Config t
NAME(config)# banner motd # your message #

IP Host:
NAME(config)# ip host NAME and the ip address of the router

SHOW COMMANDS
Show run, show start, show interface, show ip route, tracert, ping, telnet



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