networking newbie need aid in router config

Hello all,
I am totally new to the world of networking. Just started my postgrad studies and networking is one of the subject taken. just for practice i tried to use the packet tracer 3.2 tool to set up 2 pcs each connected to their own routers and routers connected to a switch. Somehow, I cannot get pass the router config due to errors shown below. Please please help as this is all alien to me.

% Invalid input detected at '^' marker.

tokyo(config)#?
Configure commands:
access-list Add an access list entry
cdp Global CDP configuration subcommands
end Exit from configure mode
exit Exit from configure mode
hostname Set system's network name
interface Select an interface to configure
ip Global IP configuration subcommands
line Configure a terminal line
no Negate a command or set its defaults
router Enable a routing process

tokyo(config)#
tokyo(config)#int fa
% Incomplete command.
tokyo(config)#interface f0
^
% Invalid input detected at '^' marker.

tokyo(config)#

router(config)#interface fa0/1

Of course this depends on which interface you want to configure. Exit config mode and,

router#show ip interfaces brief

This will list your interfaces on the router. I hope this helps you.

thanks jwj....it was a big help indeed...managed to ping all devices. i have a feeling i may need all the help i can get here...know anything about configuring static routes with the use of serial cables connected to 2 routers (DTE and DCE?). Hope that you can fill me in with the basics.

www.inetdaemon.com/tutorials/internet/ip...g/static/index.shtml

This link is a very good page on static routing, this will get you started.

Hi Krazie

The thing to remember the most about the DTE and DCE connection is that which ever router has the DCE end, you need to apply a clockrate to that interface.

For example on a 2501:

router(config)#int s0
router(config-if)# Ip address subnet mask
router(config-if)# clockrate 56000
router(config-if)# no shutdown

the link provided above is a really good read as well.

jwj, great link indeed ... I think its time we stepped on to our Cisco configuration section